Solar power plant with thermo-electric generator for navigation equipment devices

FIELD: heating systems.

SUBSTANCE: invention refers to independent electric power supply devices of navigation shore-based and sea-based equipment devices as power source for charging the energy storage units (storage batteries) with thermoelectric conversion of solar power. Plant with thermoelectric generator is intended for visual devices of navigation equipment, includes light-optical device, independent electric power source (accumulator) and storage energy device with mechanism of its being connected to this source; at that, it is equipped with thermoelectric converter (thermoelectric generator) as charging device, which converts heat solar energy to electric one, and which is placed inside solar-heat collector, the functions of which are performed with optical device on the basis of Fresnel lens, which is rigidly fixed in caustic neck (focus) of solar-heat collector.

EFFECT: invention shall provide design simplification, increase in reliability, life time and operation process at sites with navigation equipment devices.

1 dwg

 

Description of the invention

The invention relates to the field of electrical engineering, and in particular, to a stand-alone power plants visual AIDS to navigation (floating preventive characters and coastal luminous characters), using the Sun's energy.

Known AIDS to navigation (Aton) various modifications and destination using optical power equipment and other consumers of energy from the Sun. All solar energy installations known SNO is used the effect of photoelectron emission (photovoltaic cells - solar cells), for example, hydro-meteorological buoy DB 4700 production in the Norwegian company AANDERAA Data Instruments (information: "the Company INFOMAR" www.infomarcompany.com). For power supply optical and meteorological equipment this buoy is equipped with nine solar panels 5.5 watts each.

A significant drawback of using this buoy is placed externally of solar panels on its body. For buoys used in freezing seas, this is unacceptable due to the damage of solar modules by ice during freeze-up and break-up.

SNO shore-based disadvantage of solar panels is their orientation. Classics in the North of thermal and the series is focusing the solar panels facing South at an angle of inclination, equal to the latitude of the place. Due to this arrangement, the solar radiation maximum is used only in the afternoon, and in the morning and evening hours the level of received radiation is significantly reduced due to the sharp angles of incidence of sun rays on the surface of the module. This circumstance, as well as the inability to use heliocentrical with this modular photovoltaic cells, makes the process of conversion of solar energy inefficient. In addition, the outer position of the solar panels does not protect them from shading snow and icing, and vandalism.

Also known energy installations that use to power the optical devices SNO thermoelectric converters of thermal energy into electrical energy, such as radioisotope thermoelectric generators - RTGs.

The use of RTGs is recognized as negative due to adverse effects on human health and the environment. In accordance with Federal Law No. 187-FZ dated 23.12.2003, carried out the dismantling and disposal of RTGs located in the coastal zone of seas of the Russian Federation.

These circumstances cause the development and creation of new, clean, independent energy sources for significant amounts is TBA visual SNO shore and sea-based.

The present invention is the creation of self-contained power unit for SNO, which is based on the conversion of thermal energy of the Sun into electric power used for charging the energy storage device supplying the light source, as well as ensuring environmental cleanliness, reliability, durability, ease of operation objects SNO and capable to protect the constituent elements of a solar power system with thermoelectric generator from external damage and vandalism.

This object is achieved in that the solar energy device with thermoelectric generator designed for visual navigation AIDS, contains optical device, a standalone power source (battery) and the charging energy of the device with the mechanism connecting it to the source. It is provided as a charging device, a thermoelectric Converter (thermoelectric generator that converts heat energy of the Sun into electrical and placed inside helioconcentrator performs the function of the optical device on the basis of the Fresnel lens, eliminating the need to use the tracking system for the visible movement of the Sun and leaving the managing to refract and focus the directed solar radiation regardless of the position of the Sun on the horizon and the height and fixed in the neck of caustics (focus) due to solar energy.

As part of any solar energy system with a thermoelectric generator (TEG) is: the TAG itself with thermocouples, a system for concentrating solar radiation (due to solar energy) and tracking system for the visible movement of the Sun.

The proposed device greatly simplifies this scheme, because it eliminates the tracking system, and functions due to solar energy performs a Fresnel lens. Used in SNO Fresnel lens designed to refraction of the light flux of the light source placed at the focus of the optical system, and the direction along the optical axis, i.e. a directional light flux. The Fresnel lens has the ability and the reverse - directed solar radiation is focused with the lens in caustic. At its narrowest point caustics (neck caustics) is the practical focus of the optical system, which should be provided with a thermocouple TAG. When using a Fresnel lens eliminates the need for tracking the Sun along the horizon, and to accommodate changing during the day the Sun's height profile Fresnel taking into account the proposals of Alara is created so that at any point in time a certain part of the steps of the lens to focus the sun's rays in the neck of the caustics in which is located the heating element.

Developed TEG electricity, the system is driven by the I, includes charge controller, served in the energy storage (battery or a battery pack), which in turn supplies power led emitter (LED) in the dark.

The proposed solution is new as from publicly available information sources not detected description such solar energy system SNO using thermoelectric generators.

The proposed solution involves an inventive step, because of the published scientific data and known technical solution is not obvious that the alleged distinctive technical features of the solar power plant with a thermoelectric generator with its use can significantly improve the reliability, durability and greatly simplify the operation process of the visual SNO.

The proposed solution is industrially applicable, as to its implementation can be used with standard tools, navigation equipment, traditional technologies for the manufacture of Fresnel lenses and thermoelectric generators, as well as standard equipment and accessories for the modernization of these funds.

An example implementation

The drawing schematically shows the principle block diagram of the solar t is reenergizes install visual navigational AIDS with the inside of the housing 7 of the proposed technical means and their structural connection.

This installation is composed of: led emitter 1, coupled by the control system 4 with an energy accumulator (rechargeable battery) 5, a focusing Fresnel lens 2, thermoelectric Converter unit thermocouples 3, the transmitting electrical energy through the control system 4 in the energy accumulator (rechargeable battery) 5 and the light sensor 6, the input signal to the control system 4 to switch on the led emitter 1 at dusk and off at dawn.

The operation of solar power plants with a thermoelectric generator as follows. With the sunrise light sensor 6 sends a signal to the control system 4, which turns off the led emitter 1. From this moment begins the process of storing energy in the energy accumulator (rechargeable battery) 5. Directed solar radiation (in the drawing schematically shows the position of the Sun at sunrise/sunset, noon and morning/evening) refracts and focuses specific steps of the Fresnel lens 2 in the neck of the caustics (focus), which is the center of the block thermocouples thermoelectric generator 3. The converted solar energy from thermogenerator 3 is fed to the control system 4, which includes the charge controller of the energy storage battery. The controller regulates the charging of the drive and provides protection from overcharging.

With the sunset light sensor 6 sends a signal to the control system 4, which has the flasher for enabling the led emitter 1 and his work with the given characteristics. The power led emitter comes from the energy storage (batteries) 5.

Technical and economic efficiency of the claimed device is in a significant increase of environmental friendliness, safety, reliability and simplify the operation of the visual navigational AIDS, as well as high vandal resistance due to the internal arrangement of the elements of the device. Thanks proposed distinguishing features of the claimed invention provides a significant reduction in financial costs for the maintenance of navigational AIDS.

Solar power plant with a thermoelectric generator, designed for visual navigation AIDS containing optical device, a standalone power source (battery) and the charging energy of the device with a mechanism to connect to this source, characterized in that it is provided as a charging device, a thermoelectric Converter (thermoselect the systematic generator), converts thermal energy from the Sun into electrical and placed inside helioconcentrator performs the function of the optical device on the basis of the Fresnel lens, eliminating the need to use the tracking system for the visible movement of the Sun and allow to refract and focus the directed solar radiation regardless of the position of the Sun on the horizon and the height and fixed in the neck of caustics (focus) due to solar energy.



 

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