Method of electric power generation from sun energy and system using biofuel boiler as additional heat source

FIELD: electricity.

SUBSTANCE: system of electric power generation from sun energy, using biofuel boiler (6) as additional heat source, includes concentrating sun collector, biofuel boiler (6), turbine generator. Concentrating sun collector utilises water as work medium and medium-pressure sun collector tubes (13) combined in a serial and parallel matrix, concentrating sun collector output is connected to the base of drum (6a) of biofuel boiler (6) via second control valve (22), and steam output of biofuel boiler drum (6a) is connected to cylinder (3) of the turbine generator (1). Such system utilises sun energy and heat source of biofuel boiler selectively, depending on weather conditions. Additionally the invention claims method of electric power generation using the system.

EFFECT: stable operation enhancing operation efficiency.

12 cl, 4 dwg

 

The technical field

The present invention relates to a method for production of electricity from solar energy, as well as to the system that uses biomass boilers as an additional source of heat, which belong to the field of new methods of electricity production, namely to generate "clean" electricity from biofuels and solar energy.

Prior art

Due to the reduction of reserves of traditional fossil fuels (coal, oil, natural gas) and environmental pollution when using their energy, which threatens development, and human life, it is necessary to provide renewable and clean energy on a global scale. Solar energy is characterized by widespread, virtually unlimited inventory, net accumulation and disposal and absence of generation of CO2.

However, large-scale use and utilization of solar energy is much more expensive than energy use of conventional fossil fuels. In addition, the production of electricity from solar energy depends on weather changes, which makes the production of unstable and impermanent. Therefore, the solution to the above problems has become a hot topic of research in the field of energy.

Being an organic substance, is occasioned by the process of photosynthesis plants biomass is characterized by a wide distribution, large quantity stocks, purity in comparison with fossil fuels, the lack of generation of CO2. Thus biomass is an important renewable source of energy and renewal and the use of biomass is also the pressing issue of energy research. As biofuel power plant with a biomass boilers were used mown hay, fuel from forest wood and wood waste, the industrial processing of wood. However, the caloric content of biofuels is much less than the caloric value of coal of the same volume. To ensure continuous operation of power plants with biomass boilers require large areas for storage of biofuels, which occupy a large plot of land. In addition, biofuel, which is stored in the open air, dries, which can cause a fire, and some biofuels are capable of spontaneous combustion in dry environment. All these shortcomings critically discourages and limits the use of power plants with biomass boilers.

The American company eSolar has developed a solar power tower. Tower system II uses hundreds or thousands of mirrors (also known as heliostat) to reflect the sunshine what's rays on the drive (also known as a solar boiler). The maximum temperature reaches 1000°C. Molten salt (or conducting oil) used as heat carrier is heated to about 560°C and stored in the heat storage tank. Water is heated and converted into steam at high temperature and high pressure due to heat molten salt (or conductive oil) using a heat exchanger. Then steam is supplied to the turbine to generate electricity.

Israeli company LUZ has developed nine complexes parabolic trough systems for electricity generation from solar energy in the desert of southern California. Solar energy is concentrated on the solar collector tubes located on the focal line of the paraboloid. Oil, which is cooled, heated and stored in a tank battery. Due to the heat transfer oil heats the water, turning it into steam with a temperature of 372°C in the heat exchanger. Next, steam is supplied to the turbine to generate electricity.

Due to the fact that solar radiation is highly dependent on weather and cloud cover, and solar radiation can be captured only in a certain period of time from 8:00 to 17:00, for the above tower or parabolic trough systems produce electricity from solar energy using a specially designed turbine fast start also known as solar turbine, able to work in the afternoon and stay the night or working in Sunny days and staying in a cloud), adapted to the characteristics of solar energy conversion, frequency and speed of system startup to ensure stable operation of the turbine. In comparison with the conventional turbine, adapted to work on the conversion of fossil fuel energy, solar turbine is characterized by the fact that it does not require much time for pre-heating by providing a storage system, a sufficiently large amount of heat by using a heat-sink attachments, and double heat exchange between the coolant (heat transfer oil or molten salt) and the working fluid (water vapor). However, this technical scheme makes the system more complex, which increases the cost. Dual heat reduces the efficiency of thermoelectric conversion. Solar turbine has a large size, high cost and low thermal efficiency because of the use of special construction materials and special design.

Also, if the system is used as heat molten salt, the work system is quite difficult. If the temperature is reduced to 260°C, the molten salt passes from a liquid state TV is Joe, and salt in the solid state affect the operation of the system regardless of whether it is in the tubes or in the tank battery. Thus, the temperature of the molten salt must be maintained above 260°C for a long time, which is energy-consuming and difficult to implement.

In winter, at night or during prolonged snow and clouds, when the temperature drops below 0°C, above the solar turbine cannot operate continuously. In addition to its uselessness while simple, is quite complicated and energy-consuming task is to prevent freezing of the system at this time.

Disclosure of inventions

In view of the existence of the above problems, one of the technical objectives of the present invention is the provision of a method of production of electricity from solar energy using biomass boilers as an additional source of warmth and system using a boiler. In the present invention as an additional source of heat is used biomass boilers and combination of energy use of biofuels and solar energy efficiently solves the problem of instability of solar energy.

The present invention provides the following technical solution: a method for the production of electricity from solar energy use is Itanium biomass boilers as an additional source of heat in the system, includes a concentrating solar collector, biomass boilers and turbine generators. In concentrating solar collectors and biomass boilers as a working fluid for absorption and accumulation of heat use water. The biomass boilers used as an auxiliary source of heat to provide an additional source of heat for electricity production from solar energy.

This method includes the following steps:

1) kindle biofuel fired boiler, when the water level L1 in the boiler drum biofuel reaches the specified start the turbo-generator in accordance with the process of thermal power plants with biomass boilers;

2) start concentrating solar collector; determine the temperature t3 of the water at the outlet of the concentrating solar collector; open the second control valve located between the water outlet of a concentrating solar collector and the boiler drum biofuel, when t3 ≥? 95°C, and opens the third control valve to regulate the flow of water to the tube solar collector; serves water to the boiler drum on biofuels; regulate the flow of water to the tube solar collector to provide t3 ≥95°C in accordance with the water temperature t3 and implement automatic control using system management tour is generator to maintain the water level in the boiler drum on biofuel steam pressure and steam temperature at the outlet of biomass boilers at predetermined intervals of values, as well as maintain a stable mode of operation of the turbogenerator;

3) close the second control valve on the water outlet of the concentrating solar collector and the third control valve to regulate the flow of water to the tube solar collector to prevent leakage of water from the tube solar collector and keep warm and maintain in working condition, if the supply of water in the tube solar collector is set at the minimum level, and the water temperature t3 at the outlet of water from the concentrating solar collector defined by the turbine and is t3<95°C; switch turbine generator mode of the power plant; increase the supply of fuel in biomass boilers using the control system of the turbine generator with automatic control to maintain the set values of pressure and temperature steam outlet steam from the boiler on biofuels and sustainable mode of operation of the turbogenerator;

4) open the first control valve located between the water outlet of the concentrating solar collector and a charging tank, if the temperature t3 at the outlet of water from the concentrating solar collector continues to fall and becomes lower than t3=5-9°C; open the cover the spill valve for spilling water at room temperature from the tube solar collector to a storage tank demineralized water; open the drain valve to discharge water from the solar collector tubes; served compressed air through the hole in the bypass valve all tubes of the solar collector to remove water; support of a concentrating solar collector and tube solar collector in the dry state, to prevent freezing; switch turbogenerator operation of power plants with biomass boilers; and

5) repeat step 1), if the temperature of the water in the tube solar collector increases and reaches t3 ≥95°C for resumption of solar radiation; serves water to the boiler biofuel and reduce the supply of fuel in biomass boilers due to the automatic control of the turbine generator.

The production of electricity from solar energy using biomass boilers as an additional source of heat in accordance with the above-described method, includes a concentrating solar collector, biomass boilers and turbine generators. In concentrating solar collectors and biomass boilers as a working fluid for absorption and retention of heat is water. Concentrating solar collector includes tube solar collector medium pressure, combined in series-parallel matrix. Output concentrating the solar collector connected to the base of the drum biomass boilers through the second control valve. The steam output from the boiler drum biofuel is connected to the cylinder of the turbine.

Also in concentrating solar collector can be used vacuum tubes medium pressure, combined in series-parallel matrix with the concentrating solar collector connected to the base of the drum biomass boilers through the second control valve, and the steam output from the boiler drum biofuel is connected to the cylinder of the turbine.

Alternatively, the heaters may be installed in series between the output of steam from the boiler drum on biofuels and a pipe connected with the cylinder of the turbine. This superheater is connected to the input of the high pressure cylinder of the turbine, and the steam superheater is placed in the chimney of the boiler on biofuel.

The output of the high pressure cylinder may be connected with the intermediate superheater through a pipe. The intermediate superheater connected to the inlet of the low pressure cylinder of the turbine. The intermediate superheater is placed in the chimney of the boiler on biofuel.

Alternatively, the capacitor may be coupled to the output cylinder of the turbine. While the water outlet of the condenser is connected to the deaerator. Also the water outlet of the condenser is connected with a tube of the solar collector and/or the entrance of water the boiler biofuel through the deaerator and the first water pump.

Additionally, the economizer can be installed in series with the inlet pipe of the water in the boiler biofuel, while the economizer is placed in the chimney of the boiler on biofuel.

Alternatively, the make-up tank concentrating solar collectors and biomass boilers can be made in the form of reserve tank demineralized water having a heat-insulating layer. Storage tank demineralized water is connected to the deaerator through the second water pump and then connects with a pipe solar collector, a water inlet to the boiler biofuel through the deaerator and the first water pump. Storage tank demineralized water is connected to the output of a concentrating solar collector through the first control valve.

Additionally, the temperature sensor T3 can be located on the pipe between the water outlet of the concentrating solar collector and the second control valve and the first control valve. The reference value of the temperature displayed by the temperature sensor T3 is sent to the control system of the second control valve and the first control valve. Operating temperature temperature sensor T3 is set in the range of temperatures for the safe operation of the boiler on biofuel.

Alternatively, a concentrating solar collector may include parabolic trough mirror and trubchaninova collector, when this tube solar collector is located on the focal line of the parabolic trough mirror.

Alternatively, a concentrating solar collector may include a reflective Fresnel lens and the tube solar collector, vacuum tube of solar collector is located on the focal line of the reflective Fresnel lens.

Alternatively, a concentrating solar collector may include a transmissive Fresnel lens and the tube solar collector, vacuum tube of solar collector is located on the focal line transmissive Fresnel lens.

The present invention has the following advantages.

The system, which generates electricity from two sources of heat according to the present invention are provided by a number of different valves and are able to switch production of electricity from solar energy, in the mode of power plants with biomass boilers or combined mode of electricity production, depending on solar radiation, time of day, and weather conditions. Thus, the turbine generator is capable of working continuously day and night, and eliminates the problem of freezing of a concentrating solar collector.

If the highest temperature of water heated by using a concentrating solar collector, much nor the e water temperature, heated by the boiler, the boiler biofuel of the present invention to provide an economizer, superheater and intermediate superheater. The water in the concentrating solar collector enters the boiler drum on biofuels and assistive devices for overheating or reheated, thus making the temperature gradient, thermal solar energy, and also increases the efficiency of the turbine generator.

The generation system of the present invention is simplified by eliminating the heat storage system (using heat-conducting oil or molten salt as the working fluid), used in solar power plants of the prior art and is capable of selectively or share the source of the warmth from the sun or biomass boilers depending on the nature of solar radiation, time of day, and weather conditions for continuous operation of the turbine generator day and night, thereby effectively increasing system efficiency of electricity production from solar energy and solving the problem of freezing of a concentrating solar collector in winter.

Concentrating solar collector placed on the roof fold biofuels. Due to the fact that the warehouse area of biofuels is large enough, such is the placement protects biofuels from rain and allows you to save space covered by solar power plant that uses biomass boilers as a second source of warmth.

Brief description of drawings

Fig. 1 is a structural diagram illustrating a system for producing electricity from solar energy according to the present invention.

Fig. 2 is a schematic view illustrating a concentrating solar collector parabolic trough type, placed on the roof of the warehouse biofuel.

Fig. 3 is a schematic view illustrating a concentrating solar collector containing a reflective Fresnel lens and vacuum tube solar collector.

Fig. 4 is a schematic view illustrating a concentrating solar collector containing a transmissive Fresnel lens and vacuum tube solar collector.

Embodiments of the inventions

Method for the production of electricity from solar energy using biomass boilers as an additional source of warmth and system, referred to this way, next will be described in more detail with reference to the attached drawings.

Designations in Fig.1: 1 - generator; 2 - turbine; 3 - cylinder high-pressure turbine 2; 4 - cylinder low-pressure turbine 2; 5 - condenser; 6 - biomass boilers; 7 - economizer located in the duct 6A biomass boilers 6; 8 - intermediate PA is peregrinating, located in the duct 6A biomass boilers 6; 9 - superheater located in the duct 6A biomass boilers 6; 10 - the first water pump; 11 - second water pump biomass boilers 6; 12 - storage tank demineralized water, provided the insulating layer for storing soft water, held processing device of the chemical water treatment; 13 - vacuum tube solar collector; 14 - parabolic trough mirror, here n solar collector tubes 13 and m parabolic trough mirrors 14 are located so that they form a field of solar collector, where n and m are positive integers; 19, 20, 21, 22 - shut-off valves (pneumatic, electric, hydraulic or electromagnetic; Fig.1 shows a pneumatic shut-off valves), which switches the operation modes of the entire system of electricity production; 23, 24, 25, 26 - regulating valves (pneumatic, electric or hydraulic, and Fig.1 shows a pneumatic control valves, including valves 23 and 24 are able to regulate the supply of steam to the turbine, the valve 25 is able to regulate the water flow and valve 26 is able to regulate the flow of water in the concentrating solar collector; 28 - deaerator; L1 - gauge drum biomass boilers; P1 - aeromanager output from biomass boilers (determines the pressure p1); T1 - sensor rate the atmospheric temperature of steam leaving the boiler biofuel (determines the temperature t1 and T3 the water temperature sensor at the outlet of the concentrating solar collector (determines the temperature t3).

The production of electricity from solar energy using biomass boilers as an additional source of heat includes a concentrating solar collector, biomass boilers and turbine generators. In concentrating collector solar energy and biomass boilers as the working fluid is water. In concentrating solar collector used vacuum tube solar collector 13 in the form of vacuum tubes, medium pressure, combined in series-parallel matrix. The output of a concentrating solar collector connected to the base of the drum biomass boilers 6A via a second shut-off valve 22. The steam output from the boiler drum biofuel 6A is connected to the cylinder of the turbine. Concentrating solar collector and biomass boilers heat the same water for generating steam that drives a turbine, which serves for the operation of the generator 2.

The inlet pipe of the water in the concentrating solar collector connected in series with the tank 28 and the first water pump 10.

The superheater 9 sequentially installed between the exit of steam from the boiler drum biofuel 6A and pipe connection is Noah with the cylinder of the turbine. The superheater 9 is connected with the inlet of the high pressure cylinder of the turbine 3. The superheater 9 is placed in the duct 6b biomass boilers. The outgoing gas from biomass boilers heats water vapor and turns it into dry steam.

The output of the high pressure cylinder 3 is connected with the intermediate superheater 8 through the pipe. Intermediate superheater 8 is connected to the input of the low pressure cylinder of the turbine. Intermediate superheater 8 is placed in the duct 6b biomass boilers. The exhaust gases from biomass boilers heated steam.

The capacitor 5 is connected to the output cylinder of the turbine. The water outlet of the condenser 5 is connected to the tank 28. The water outlet of the condenser 5 is connected with vacuum tube solar collector 13 and/or the entrance of water into the boiler biofuel through the deaerator 28 and the first water pump 10, which provides for the circulation of water.

Economizer 7 sequentially connected to the inlet pipe in the boiler biofuel 6, with economizer 7 is placed in the duct 6b biomass boilers. The exhaust gases from biomass boilers heat the water in the boiler biofuel.

Make-up water tank concentrating solar collectors and biomass boilers is a reserve tank demineralized water 12 with the insulating layer. Storage tank demineralized water 12 is connected to the deaerator 28 across the second water pump 11 and forth with vacuum tube solar collector 13 and the entrance of water into the boiler biofuel through the deaerator 28, and with the water pump 10. Storage tank demineralized water 12 is connected to the output of a concentrating solar collector through the first shut-off valve 21.

The temperature sensor T3 is located on the pipe between the water outlet of a concentrating solar collector and the second shut-off valve 22 and the first shut-off valve 21. Control temperature display temperature sensor T3 is transmitted to the control system of the second shut-off valve 22 and the first shut-off valve 21. Operating temperature temperature sensor T3 is set within a temperature safe operation of biomass boilers.

In Fig.2 shows the scheme of a parabolic trough concentrating solar collector placed on the roof of the warehouse biofuels. Concentrating solar collector includes a parabolic trough mirror 14 and vacuum tube solar collector 13, where the vacuum tube solar collector 13 is located on the focal line of the parabolic trough mirror. Here, position 17 marked the roof of the warehouse biofuel.

In Fig.3 shows a diagram of a concentrating solar collector comprising a reflective Fresnel lens and vacuum tube solar collector. Concentrating solar collector includes a reflective Fresnel lens 30 and the vacuum pipe from Lenogo collector 13. Vacuum tube solar collector 13 is located on the focal line of the reflective Fresnel lens 30.

In Fig.4 shows a diagram of a concentrating solar collector that includes a transmissive Fresnel lens and vacuum tube solar collector. Concentrating solar collector includes a transmissive Fresnel lens 31 and vacuum tube solar collector 13. Vacuum tube solar collector 13 is located on the focal line transmissive Fresnel lens 31.

Warehouse stock for biofuels biomass boilers have a roof suitable length and quite a large area. Concentrating solar collector is located on the roof of the warehouse stock of biofuels. Water is used as coolant in concentrating solar collectors and biomass boilers and optionally or simultaneously supplied into the vacuum tube solar collectors and biomass boilers after treatment with chemical water treatment device (storage tank demineralized water for any of the known device the chemical treatment of water is necessary to provide the insulating layer). Then the water turns into steam, which flows into the turbine to drive an electric generator.

The biomass boilers and concentrating solar collector provided with shut-off valves 18, 19, 20, 22 (pneumatic, electric is mi, hydraulic or electromagnetic). Working condition water and steam in the boiler biofuel and concentrating solar collector can be easily changed by opening or closing some of the shut-off valves, so that the generation system can operate in the mode of production of electricity from solar energy, production of electricity using biomass boilers or combined mode of electricity generation.

Obviously, biomass boilers 6 Fig.1 can be replaced by a boiler synthesized gas, coal, oil, natural gas, methane from coal, or other known boiler.

It is also understood that the vacuum tube solar collector of Fig.1-4 can be replaced by known black pipe solar collector.

The system of electricity production from solar energy is described next with reference to Fig.1 and 2.

In concentrating collector solar energy and biomass boilers as a working fluid for absorption and retention of heat is water. Biofuel fired boiler operates as a second source of heat to provide an additional source of heat for electricity production from solar energy. The biomass boilers and concentrating solar collector run on the simultaneously.

The process includes the following steps:

1) kindle biofuel fired boiler, when the water level in the boiler drum biofuel reaches a preset value; include turbine generator for operation of power plants with biomass boilers;

2) start concentrating solar collector (at this point, the first control valve is in the closed state); measure the temperature t3 of the water at the outlet of the concentrating solar collector; open the second control valve located between the water outlet of a concentrating solar collector and the boiler drum biofuel, when t3 ≥95°C, and opens the third control valve to regulate the flow of water to the tube solar collector; serves water to the boiler drum biofuel; regulate the flow of water into the tube solar collector to provide t3 ≥95°C in accordance with the water temperature t3 and maintain the water level in the boiler drum on biofuels, steam pressure and the steam temperature at the outlet of biomass boilers at predetermined intervals of values, and support the stable operation of the turbine due to the automatic regulation control system of the turbine generator;

3) close the second control valve on the water outlet of the concentrating solar collector and the third control valve for controlling the feed of the odes to the tube solar collector to prevent leakage of water from the tube solar collector and keep warm and maintain in working condition, if the water in the tube solar collector is set at the minimum level, if the water temperature t3 at the outlet of water from the concentrating solar collector defined by the control system of the turbine generator, declined to t3<95°C; switch turbine generator mode thermal power plants; increase the supply of fuel in biomass boilers automatic control system control of the turbogenerator to maintain the setpoint pressure and the steam temperature at the exit of steam from the boiler on biofuels and sustainable mode of operation of the turbogenerator;

4) open the first control valve located between the water outlet of the concentrating solar collector and a charging tank, if the temperature t3 at the outlet of water from the concentrating solar collector continues to fall and becomes lower than t3=5-9°C; open the bypass valve for water at room temperature from the tube solar collector to a storage tank demineralized water; open the drain valve to discharge water from the solar collector tubes; served compressed air through the hole in the bypass valve all tubes of the solar collector to remove water; support of a concentrating solar collector and tube solar collector in a dry condition, preventing paremesan is; switch the turbine in the power plant with biomass boilers; and

5) repeat step 1), if the temperature of the water in the tube solar collector increases and reaches t3 ≥95°C for resumption of solar radiation; serves water to the boiler biofuel and reduce the supply of fuel in biomass boilers due to the automatic regulation control system of the turbine generator.

The new system starts producing electricity from solar energy (or restart the entire system after renovation) of the present invention: before sunrise close shut-off valve 21 open shut-off valves 18, 19, 20, 22 and starts the second water pump 11 to fill the boiler drum biofuel 6A to a specific level determined by the level L1, and the water fills the vacuum tube solar collector. During sunrise kindle biomass boilers and run a turbine generator to provide workflow mode thermal power plants with biomass boilers. During sunrise solar radiation sharply increases to higher values for half an hour at 8:00, the heated water from the concentrating solar collector enters the boiler drum biofuel 6A. At the rate of 65 t/h average temperature and pressure in the boiler biofuel can be: pressure p1=5,2 MPa, temperature t1=450°C, and water temperature at the outlet of the economizer 7 is about 231°C. Maintaining the water level in the boiler drum biofuel 6A and values p1 and t1 at predetermined intervals is a sustainable mode of operation of the turbine generator.

Scheme a is applicable if a concentrating solar collector and the boiler biofuel used as an additional source of heat, work together in the cloud and rainy days with a daily frequency. Features of the scheme are the following.

In cloudy and rainy days with a daily periodicity water temperature t3 at the outlet of water from the concentrating solar collector falls, causing the control system of the turbine generator produces automatic control for adjusting the flow of fuel in biomass boilers up until the water level in the drum 6A, and the values of p1 and t1 will not be supported at predetermined intervals. When the cloud layer thickens and starts to rain, the water temperature t3 at the outlet of water from the solar collector continues to fall, and when the temperature t3 drops from 231°C to about 95°C (which corresponds to the lowest temperature value for the safe operation of biomass boilers), the second shut-off valve 22 to the water outlet of the concentrating solar collector and the third cut is the second valve 19 is closed to prevent leakage of water from the vacuum tube solar collector and maintain the water heated and working condition. Thus, the turbine enters the mode of power plants. When the clouds dissipate, and you receive the solar radiation, water temperature t3 at the outlet of water from the concentrating solar collector increases and becomes higher than 95°C, the second shut-off valve 22 and the third shut-off valve 19 is opened to continue the work of the solar collector and water enters the boiler drum biofuel 6A. Along with the growth temperature of the water in the vacuum tubes of the solar collector supply of fuel in biomass boilers is reduced through automatic control of the turbine generator.

The scheme is applicable in a dark night, and especially the process of work on the scheme are as follows.

Before nightfall, when the sun's rays do not fall on a concentrating solar collector, water temperature at the outlet of the concentrating solar collector falls, and if t3 is likely to range from 9°C to 5°C (t3 ≥5°C), the system performs a scheme A. the Water in the vacuum tube solar collector does not follow and is in a heated condition. The turbine generator was switched to thermal power stations until then, until a cloudless day and will not receive the sun's rays.

Scheme C is used at night when the temperature drops to the freezing point of water (or on cloudy days, to the Yes, the temperature falls to the freezing point of water), features of the process according to scheme C are as follows.

Before nightfall and darkness, when the sun's rays do not fall on a concentrating solar collector, the system applies the schema C. If the t3 continues to fall and becomes t3=5-9°C, the first shut-off valve 21 and the bypass valve 27 is opened to discharge water at room temperature from the vacuum tube solar collector to a storage tank demineralized water 12. The drain valve 29 is opened to remove the water remaining in the vacuum tubes of the solar collector. Compressed air is supplied through the opening by-pass valve in the vacuum tube to the complete removal of water. Thus, a concentrating solar collector and the vacuum tube are maintained in a dry condition to prevent freezing, and the turbo-generator is switched to the production of electricity from biomass boilers.

Conclusion

The generation system of the present invention is a system for producing electricity from solar energy using biomass boilers as an additional source of heat, which heats the water. The present invention is simplified by eliminating the heat storage system (using thermal oil or molten salt as a coolant), IP is olzoeva in solar power plants of the prior art, and also is capable of selectively or simultaneously use a source of heat from the sun or biomass boilers depending on changes in solar radiation during the day and night, the weather for maintaining continuous operation of the turbine generator day and night, resulting in increased system efficiency production of electricity from solar energy, and also solved the problem of freezing of a concentrating solar collector in winter.

1. Method for the production of electricity from solar energy using biomass boilers as an additional source of heat in the system, including:
concentrating solar collector,
the biomass boilers and
the turbogenerator,
characterized in that
in concentrating solar collectors and biomass boilers as a working fluid for absorption and accumulation of heat use water,
the biomass boilers used as an auxiliary source of heat to provide an additional source of heat for electricity production from solar energy,
the method includes the following steps:
(1) kindle biofuel fired boiler, when the water level L1 in the boiler drum biofuel reaches a predetermined level, run a turbine generator in accordance with the working process of the power plant with the cat the ohms on biofuels;
(2) start concentrating solar collector; determine the water temperature t3 at the outlet of the concentrating solar collector; open the second control valve located between the water outlet of a concentrating solar collector and the boiler drum biofuel, when t3 ≥? 95°C, and opens the third control valve to regulate the flow of water to the tube solar collector; serves water to the boiler drum on biofuels; regulate the flow of water to the tube solar collector to provide t3 ≥95°C in accordance with the water temperature t3 and maintain the water level in the boiler drum on biofuels, steam pressure and the steam temperature at the outlet of biomass boilers at predetermined intervals of values, and support the stable operation of a turbo-generator with automatic regulation control system of the turbine generator;
(3) close the second control valve on the water outlet of the concentrating solar collector and the third control valve to regulate the flow of water to the tube solar collector to prevent leakage of water from the tube solar collector and keep warm, and keep in working condition, if the supply of water in the tube solar collector is set at the minimum level, and the water temperature t3 at the outlet of water from concentrating the solar collector, some turbo-generator, declined by up to t3<95°C; switch turbine generator mode thermal power plants; increase the supply of fuel in biomass boilers using the control system of the turbine generator to maintain the setpoint pressure and the steam temperature at the exit of steam from the boiler on biofuels and sustainable mode of operation of the turbogenerator;
(4) open the first control valve located between the water outlet of the concentrating solar collector and a charging tank, if the temperature t3 at the outlet of water from the concentrating solar collector continues to fall below t3=5-9°C; open the bypass valve for water at room temperature from the tube solar collector to a storage tank demineralized water; open the drain valve to discharge the remaining water from the solar collector tubes; served compressed air through the hole in the bypass valve all tubes of the solar collector to the complete removal of water; support of a concentrating solar collector and tube solar collector in the dry state, to prevent freezing; switch turbogenerator operation of power plants with biomass boilers; and
(5) repeat step (1), if the temperature of the water in the tube solar collector increases to t3 ≥95°C when resuming from the solar radiation; serves water to the boiler biofuel and reduce the supply of fuel in biomass boilers with automatic control of the turbine generator.

2. The production of electricity from solar energy using biomass boilers as an additional source of heat in accordance with the method according to p. 1, including:
concentrating solar collector,
the biomass boilers and
the turbogenerator,
characterized in that:
in concentrating solar collectors and biomass boilers as a working fluid for absorption and retention of heat use water;
concentrating solar collector includes tube solar collector, combined in series-parallel matrix;
the output of a concentrating solar collector connected to the base of the drum biomass boilers (6A) through the second control valve; and
the steam output from the boiler drum biofuel (6A) connected to the cylinder of the turbine.

3. The system under item 2, characterized in that:
concentrating solar collector consists of a vacuum tube medium pressure, combined in series-parallel matrix;
the output of a concentrating solar collector connected to the base of the drum biomass boilers (6A) through the second control valve; and
the steam output from the boiler drum b is topliva (6A) connected to the cylinder of the turbine.

4. The system under item 2 or 3, characterized in that:
superheater (9) is installed in series between the output of steam from the boiler drum biofuel (6A) and a pipe connected with the cylinder of the turbine;
superheater (9) is connected with the inlet of the high pressure cylinder of the turbine (3); and
superheater (9) is placed in the chimney (6b) biomass boilers.

5. The system under item 2 or 3, characterized in that:
the output of the high pressure cylinder (3) is connected with an intermediate superheater (8) using a pipe;
intermediate superheater (8) is connected to the input of the low pressure cylinder of the turbine; and
intermediate superheater (8) is placed in the chimney (6b) biomass boilers.

6. The system under item 2 or 3, characterized in that:
the condenser (5) is connected to the output of the turbine cylinder;
the water outlet of the condenser (5) is connected to the deaerator (28); and
the water outlet of the condenser (5) is connected with a pipe solar collector (13) and/or the entrance of water into the boiler biofuel through the deaerator (28) and the first water pump (10).

7. The system under item 2 or 3, characterized in that the economizer (7) is installed in series with the inlet pipe of the water in the boiler biofuel (6), with economizer (7) placed in the chimney (6b) biomass boilers.

8. The system under item 2 or 3, characterized in that:
make-up tank of a concentrating solar collector and cotl the biofuel is made in the form of reserve tank demineralized water (12), having the insulating layer;
storage tank demineralized water (12) is connected to the deaerator (28) through the second water pump (11) and further connected with a tube solar collector (13), the entrance of water into the boiler biofuel through the deaerator (28) and the first water pump (10); and
storage tank demineralized water (12) is connected to the output of a concentrating solar collector through the first control valve (21).

9. The system under item 2 or 3, characterized in that:
temperature sensor (T3) is located on the pipe between the water outlet of the concentrating solar collector and the second control valve (22) and the first control valve (21);
temperature sensor (T3) is made with the ability to send some of his control temperature value to the control system of the second control valve (22) and the first control valve (21); and
operating temperature temperature sensor (T3) is installed within the temperatures for the safe operation of the boiler on biofuel.

10. The system under item 2 or 3, characterized in that the concentrating solar collector contains a parabolic trough mirror (14) and the tube solar collector (13), and the tube solar collector (13) is located on the focal line of the parabolic trough mirror.

11. The system under item 2 or 3, characterized in that the concentrating solar collector provides the reflective Fresnel lens (30) and the tube solar collector (13), when this tube solar collector (13) is located on the focal line of the reflective Fresnel lens (30).

12. The system under item 2 or 3, characterized in that the concentrating solar collector includes a transmissive Fresnel lens (31) and the tube solar collector (13), and the tube solar collector (13) is located on the focal line transmissive Fresnel lens (31).



 

Same patents:

FIELD: heating.

SUBSTANCE: invention is intended to maintain comfortable air parameters in low buildings, mainly in cattle farms. Solar heat and cold supply system includes south air duct made of material absorbing solar radiation and north air duct, located at respective building sides, heat collector, together with the building floor forming a subfloor air duct connected to the south air duct, and heat exchange and underground air ducts positioned one over the other below the heat collector, where heat exchange air duct is connected to the north air duct, and underground air duct is equipped with underground heat transfer pipes; the system features a vortex tube in the heat collector, vortex tube input connected to subfloor air duct, cold channel connected to transfer piece, and hot channel connected via heat collector to underground air duct; subfloor and underground air duct outputs are connected to cold channel of vortex tube where a filter is installed downstream of air duct connection point; south and north air ducts are opened to ambient air, and heat exchange air duct is opened to indoor space; special feature of the system is the underground air duct made of composite material including metal base, heat insulation and heat accumulation thin-fibre basalt and waterproof layer, where thin-fibre basalt is stretched lengthwise along underground air duct and attached between metal base and waterproof layer.

EFFECT: prevention of heat loss during long-term operation in variable temperature and humidity conditions of ground, affecting elements of solar heat and cold supply system by implementation of underground pipeline out of composite material with fixated thin-fibre basalt stretched lengthwise between metal base and waterproof layer.

2 dwg

FIELD: electricity.

SUBSTANCE: invention is related to renewable energy sources and intended for generation of electric energy for charging of hybrid and electric cars as well as cars with flywheel-type energy storage units. The multifunctional stand-alone hybrid charging station (MSAHCS) may be used as a stand-alone power plant for production and household use by consumers, video monitoring of the environment, instrument monitoring of meteorological and ecological situation in the location area. In MSAHCS the correlation between elements of its design is introduced and also the functional interaction of the above elements is given.

EFFECT: invention allows charging of hybrid and electrical cars and flywheel-type energy storage units independently from conventional energy sources; joint use of renewable sources of solar energy, geothermal energy and wind energy any time any day in the year round; effective recovery of electric energy from the MSAHCS shaded side using helio-spotlights as well as weather and environment monitoring; hot water supply for the MSAHCS needs.

10 cl, 6 dwg

FIELD: heating.

SUBSTANCE: invention is intended to maintain the comfort of air parameters in low-rise buildings, mainly on livestock farms. The system of helio-thermo-cold supply comprises the southern, made of the material absorbing solar radiation, and northern air ducts located on respective sides of the building, the heat accumulator which forms with the floor of the building the underground air duct which communicates with the southern, as well as located under the heat accumulator one above the other heat exchanging and ground air ducts the first of which communicates with the northern, and the other is provided with the ground heat-conducting tubes, and the system is equipped with a vortex tube located in the heat accumulator, communicated with its inlet to the underground air duct, with the cold duct - with the room, and hot - through the heat accumulator to the ground air duct, the outputs of the underground and the ground air ducts are connected to the cold duct of the vortex tube, and behind the place of their connection the filter is mounted, and the southern and northern air ducts are communicated with the atmosphere, and heat exchanger - with the room, and the system is equipped with a thermoelectric generator, made in the form of a housing and a set of differential thermocouples, and the passageway for hot coolant is located in the housing and the passageway for the cold coolant, moreover, the inlet pipe of the passageway for the hot coolant is connected by the channel of hot flow of the vortex tube, and with its outlet pipe - with the ground air duct, at that the inlet pipe of the passageway for the cold coolant is connected to the channel of the cold flow of the vortex tube, with its output pipe - to the room.

EFFECT: reducing the power consumption of the system of helio-thermo-cold supply by using the temperature difference of cold and hot flows of the vortex tube to generate electricity by the thermoelectric generator.

2 dwg

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, in particular, to methods and devices for providing energy to remote agricultural facilities not equipped with stationary energy supply. The method of fan concentration of solar power lies in fan concentration of solar irradiation, and the concentrated irradiation with one concentrator with a mirror reflector is transmitted to the next one. The device of fan concentration of solar power comprises paraboloidal concentrators with mirror reflectors in focus. Summation of the energy of solar irradiation is carried out by fan set of the predetermined number of concentrators with mirror reflectors in focus. The predetermined receiving power of solar irradiation is obtained by calculation of the required number of fan concentrators.

EFFECT: improvement of efficiency of the method.

4 cl, 5 dwg

FIELD: power engineering.

SUBSTANCE: solar-wind water distiller comprises a reservoir for water desalination, a transparent condenser installed above it with a nozzle for outlet of the steam and air mixture in the upper part with a propeller installed in it and fixed on the shaft of the wind engine. A non-transparent condenser is installed above the transparent one, being connected in the upper part with a circulating pipeline, which ends with a circular distributor in the reservoir. A conical tube is fixed to the shaft on the lower and upper crosspieces, and the tube has helical triangular thread on the outer surface in the direction opposite to the rotation of the disc, with which it is partially connected. On the surface of the non-transparent condenser there are toroids, which are hydraulically communicated by pipes with a chute communicated with a pipeline with a reservoir of fresh water.

EFFECT: water distiller, if wind is available, will also work at night time.

3 cl, 2 dwg

FIELD: power engineering.

SUBSTANCE: photoelectric thermal system comprises at least one solar heat collector, a pipeline of liquid supply into a solar heat collector. a pipeline of liquid drain from the solar heat collector into an accumulator tank (thermos). At the same time the pipeline of liquid supply into the solar heat collector is connected at least with one photoelectric heat module arranged at the level that is lower than the solar heat collector and connected in series with it. Supply of the liquid into the photoelectric heat module is carried out via the pipeline from the discharge tank installed above the level of the solar heat collector, at least into one of pipelines a solenoid valve is mounted, there is at least one heat relay with a sensor individual for the photoelectric heat module or the solar heat collector. Control contacts of the solenoid valve are connected and switched with the help of a heat relay, at the same time the solar heat collector and the photoelectric heat module are made in the form of receivers of solar radiation, which represent reservoirs that have the shape of a rectangular parallelepiped, and on the working surface of the reservoir of the photoelectric heat module there is a battery of solar elements, inside of the reservoirs of the photoelectric heat module and the solar heat collector in parallel to the working surface with a gap relative to it there is a partition that does not reach the upper and lower wall of the reservoir.

EFFECT: usage of the invention makes it possible to generate electric energy and thermal energy, which will make it possible to provide for power supply of facilities of agricultural and individual purpose.

4 cl, 6 dwg

FIELD: heating.

SUBSTANCE: invention refers to solar engineering and can be used for carrying out chemical reactions. A solar power plant for chemical reactions includes branch pipes and a heater. The plant includes a cubic working chamber with a transparent opening, inside which a porous body is located, which is supported on both sides with branch pipes in the form of tubes, an upper branch pipe for initial reagents, and around the lower branch pipe there located is a spiral-shaped heat exchanger that is connected to cooling agent supply and discharge tubes; besides, hot cooling agent discharge from the housing is performed, and to the chamber there additionally installed from above is a branch pipe for discharge of gaseous reaction products with the spiral-shaped heat exchanger.

EFFECT: possibility of carrying out reactions between different reagents and improving use efficiency of renewed energy sources at carrying out high-temperature reactions.

1 dwg

FIELD: power industry.

SUBSTANCE: multipurpose solar power plant (hereinafter referred to as MSPP) refers to renewable power sources, and namely to use of solar radiation to generate electric power, provide hot water supply and natural illumination of rooms of different applications, which contains the following: an optically active transparent dome representing a rectangular biconvex lens, a photovoltaic panel, a solar collector, round flat horizontal dampers of hollow light guides, hollow light guide tubes, a heat-receiving copper plate of the solar collector, a solar light dissipator, micromotors of round flat horizontal dampers of hollow light guide tubes, round light-emitting-diode lamps, storage batteries, light and temperature sensors, an electronic control unit, a control panel, a storage tank, a heat exchanger, a pump, a check valve, six-sided copper pipelines, an inverter and a support with support racks to support MSPP structure.

EFFECT: reduction of financial costs for conventional electric power, conversion of the solar power to electric and thermal power, for natural illumination of rooms of different applications and as energy-active roofs of different buildings.

10 cl, 4 dwg

FIELD: power engineering.

SUBSTANCE: in a solar module with a concentrator comprising a transparent focusing prism with an angle of complete inner reflection where n - coefficient of prism material refraction, with triangular cross section, having an inlet face, to which radiation drops along the normal line to the surface of the inlet face, and a face of radiation re-reflection, forming a sharp double-faced angle φ with the inlet face, and the face of output of the concentrated radiation and a reflection device, forming with the re-reflection face a sharp double-faced angle ψ, which is arranged unidirectionally with the sharp double-faced angle φ of the focusing prism, the reflection device comprises a set of mirror reflectors with length L0 having identical sharp angles ψ, set at a certain distance from each other, on the surface of the input face there are additional mirror reflectors that are inclined to the surface of the input face at the angle 90°-δ, which is arranged as differently directed with a sharp double-faced angle φ of the focusing prism, the lines of contact of the plane of the additional mirror reflector with the input face and the line of contact of the plane of the mirror reflector of the re-reflection device with the re-reflection face are in the same plane, perpendicular to the surface of the input, the length of projection of the additional mirror reflector to the surface of the input face is more than the length of the projection of the mirror reflector of the reflection device to the surface of the input face by the value In another version of the solar module with a concentrator comprising a transparent focusing prism with triangular cross section, with the angle of input of beams β0 and the angle of total inner reflection where n - coefficient of the prism, having an input face and the face of re-reflection of radiation, which form a common double-faced angle φ, the face of output of the concentrated radiation and a reflection device, which forms with the re-reflection face a sharp double-faced angle ψ, which is arranged unidirectionally with the sharp double-faced angle φ of the focusing prism, the reflection device comprises a set of mirror reflectors installed at a certain distance from each other with length L0 with identical sharp angles ψ, with a device of rotation relative to the re-reflection face, on the surface of the input face there are additional mirror reflectors, which are inclined to the surface of the input face at the angle 90°-δ and are made in the form of louvers with a rotation device relative to the surface of the input face, and the angle of inclination of additional mirror reflectors to the surface of the input face is arranged differently directed with the sharp double-faced angle φ of the focusing prism, axes of the rotation device of the additional mirror reflector on the face of input and axis of the mirror reflector rotation device on the re-reflection device with the face of re-reflection are in the same plane, which is perpendicular to the surface of the input, the length of projection of the additional mirror reflector to the input surface is more than the length of projection of the mirror reflector of the reflection device to the input surface by the value In the method of manufacturing of a solar module with a concentrator by making a focusing prism from optically transparent material, installation of a radiation receiver, a re-reflection device with mirror reflectors from tempered sheet glass or another transparent sheet material, they make and seal the walls of the cavity of the focusing prism with a sharp double-faced angle at the top equal to 2-12° and then they fill the produced cavity with an optically transparent medium, they install tightly a radiation receiver and assemble additional mirror reflectors with rotation devices on the working surface of the focusing prism and a rotation device for the re-reflection device.

EFFECT: increased optical efficiency of a module, reduced optical losses during re-reflection of radiation and increased coefficient of solar radiation concentration.

10 cl, 3 dwg

FIELD: heating.

SUBSTANCE: solar module with a concentrator consists of a solar radiation receiver and a cylindrical solar concentrator, the reflecting surface of which is formed with rectangular mirror-reflecting plates-facets. Facets are installed so that solar beam L1 lying in the cross-sectional plane of concentrator and having a deviation from target direction to the Sun, which is equal to accuracy of the tracking system, and after it is reflected on the facet edge that is the closest one to the receiver, it falls down to the boundary of concentrated solar radiation zone on the receiver surface, which is located far from it, and width of facets is such that beam L2 that is symmetrical to the first beam L1 relative to target direction falls down to the nearest boundary of concentrated radiation zone after it is reflected on the opposite facet edge.

EFFECT: more uniform distribution of solar radiation along the receiver surface; improving optical effectiveness of a concentrator; increasing average annual power generation and reducing its prime cost.

4 cl, 6 dwg

FIELD: power engineering.

SUBSTANCE: plant has a circuit for circulation of working fluid. The circuit comprises steam generator provided with branch pipes for supplying fluid and discharging steam, steam turbine combined with the electric generator, regenerative heater with branch pipes for supply and discharge of heating and heated fluids, circulation pump for pumping fluid, circuit for circulation of heat carrier tank for exhaust heat carrier, and circulation pump for heat-transfer agent. The solar receiver is made of independent sections interconnected in parallel. The heat carrier circulation circuit is provided with pressure vessel.

EFFECT: enhanced serviceability and simplified design.

5 cl, 1 dwg

FIELD: solar power engineering.

SUBSTANCE: solar power plant includes solar battery having at least two solar heat collector mutually joined through branch pipe. Said collectors are provided with individual heat pickups and individual pipelines for discharging hot water out of them through connection branch pipes. Shut-off devices are mounted in zones of crossing of branch pipes and pipelines. Pipeline for supplying water from accumulating tank to solar battery includes water pump; accumulating tank includes two heat exchangers of different volumes. Heat exchanger of large volume is designed for water used for heating; heat exchanger of small volume is designed for water used for domestic purposes. Solar heat collector includes transparent panel; heat absorbing panel in the form of set of parallel metallic tubes for liquid heat transfer agent connected with lower surface of metallic radiant-energy absorbing sheet; heat insulation layer and supporting heat insulation panel. Parallel metallic tubes of heat absorbing panel are pressed-in to metallic radiant energy absorbing sheet, they are arranged along short sides of said sheet and mutually connected by means of tubes arranged along long sides of sheet. Supporting heat insulation panel, heat insulation layer, heat absorbing and transparent panels are fluid-tightly connected one to other for forming rigid structure construction, for example with use of bolts. On upper and lower surface of said construction along its perimeter metallic or polymeric shapes are mounted.

EFFECT: enhanced efficiency of using solar energy.

17 cl, 3 dwg

FIELD: power engineering.

SUBSTANCE: solar power plant comprises concentrator, receiver of solar radiation, and accumulator. The concentrator is made of a transparent sphere filled with a transparent liquid for concentrating the light beam at the receiver of solar beams. The heat accumulator is provided with a coil.

EFFECT: enhanced reliability, simplified structure, and reduced cost.

1 dwg

FIELD: solar wind power engineering.

SUBSTANCE: heater comprises electric generator with wind wheel, tail beam of rectangular cross-section, shaft, and tail assembly which is composed of two or more rhomboid panels provided with photoelectrical transducers from their sides. The ring water accumulator is mounted in the bottom section of the shaft and connected with the photoelectrical transducers. The rectangular water accumulator is connected with the electric generator. The cells filled with a heat accumulating agent are connected with the electric heaters mounted inside the accumulators. The temperature of phase transition of the agent should be within the range of operation temperatures of the accumulators.

EFFECT: enhanced efficiency.

1 cl, 1 dwg

FIELD: development of power plants using solar energy.

SUBSTANCE: proposed method depends on conversion and storage of solar energy including generation of heat energy used to set air in rotary motion within solar collector wherein air ducts are organized, disposed in parallel, and connected in series with motion of energy-saturated air flow. Each of such ducts accommodates group of local tilted surfaces whereon sun rays are incident through light-translucent heat-insulating material, and controlled heat fluxes of process working medium conveyed from solar energy converters and accumulators of various types and potential levels are at the same time supplied to these ducts. In the process temperature irregularities occur within solar collector and its air ducts with the result that steady revolving air flows are set up both along air ducts and in their sectional areas, as well as in surface areas encouraging turbulent vortex motions.

EFFECT: enhanced power generation ensured by proposed method.

3 cl, 4 dwg

FIELD: the invention refers to small power engineering using renewable energy sources- Sun, wind, lifting of warm air upwards, difference of atmospheric pressure throughout the height.

SUBSTANCE: The electric power station has an accumulator of solar power and a tower which is equipped with aerodynamic facilities for transformation of solar and wind energy in electric power.

EFFECT: creation, building and exploitation of solar-vacuum electric power station in small towns and inhabited localities instead of diesel power stations and boiler rooms on solid fuel, transfer from hot-water heating to electric heating on a moderate price for inhabitants and local production allows to brighten economy of these settlements.

1 dwg

FIELD: solar power engineering.

SUBSTANCE: method is used for transforming sunbeam energy to thermal energy. Method is performed by means of sequent connection of solar beam concentrators. One of concentrators is composed of a field of local concentrators, which are built in heat-insulating lightproof material. The material embraces internal room of sunbeam-absorbing chamber. Built-in concentrators and sunbeam conductors have to be basically hollow truncated pyramids which have faces covered with beam-reflecting material. Bases of pyramids are closed by transparent heat-insulating material The second sunbeam concentrator has to be external one. Those concentrators preliminary have shape of truncated pyramid with faces covered with light-reflecting material. The third level of solar-beam pumping of sunbeam-absorbing chamber is created additionally due to creation of total filed of external sunbeam-reflecting surfaces in environment at different distances from sunbeam-absorbing chamber.

EFFECT: reduced cost of multistep pumping of solar power to sunbeam-absorbing chamber.

26 cl, 6 dwg

FIELD: power engineering and agriculture, applicable in production of a universal power carrier-hydrogen.

SUBSTANCE: the solar energy concentrator in the sea-based bioenergetic complex is made in the form of a pontoon frame with a heat-insulating membrane located inside it and supported by flexible pontoons, a lengthened reactor with biomass spores is installed on the membrane and heat-exchange pipes of thermocompressors positioned on the pontoons of the pontoon frame, also installed in which are saturators, biomass and water separators, methane-producing generators, nuclear reactors for heating of steam delivered to the converters from the thermocompressors to high temperatures, and a tank for storage of gases and water, and the outer side of the pontoon frame is additionally provided with coiled reactors with biomass spores supported by the flexible pontoons.

EFFECT: provided salvaging of carbon dioxide and production of hydrogen.

4 dwg

FIELD: heat-storage materials.

SUBSTANCE: invention relates to mixtures capable of accumulating heat energy and relevant solar energy transformers. Heat-storage material according to invention contains silicon dioxide, 3-5% of liquid soda glass, and 50-82% of VO2+x wherein x=0-0.5. Material is prepared by compacting mixture of vanadium dioxide VO2+x and silica in presence of liquid soda glass as binder followed by solidification at 150-200°C. Summary heat when using combined transformer including phase transformation heat (α-VO2 ↔ β-VO2) and oxygen adsorption-desorption heat of mechano-chemically treated VO2+x may reach 250 J/g.

EFFECT: increased heat-storage capacity.

8 cl, 1 tbl

FIELD: production or use of heat, particularly equipment, which uses solar and wind energy to obtain hot water in south territories.

SUBSTANCE: heating plant comprises body, vessel with floating heating member arranged in the vessel, inlet and outlet connection pipes. The heating member is made as disc and provided with hollow ring connected to disc perimeter. The hollow ring is filled with heat-accumulation substance. The disc is fastened to inner vessel surface by means of elastic corrugated film. Piezoelectric films are connected to upper body part and to sides thereof by means of metal frames. Coiled electric heating member is installed at inlet connection pipe top. The electric heating member is connected with piezoelectric film clips. Electric heating member is located in lower vessel part and is electrically linked to power board by wires.

EFFECT: increased current supply surface and increased solar radiation receiving surface.

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