The method of operation of the combustion device

 

(57) Abstract:

The invention is intended for use in the field of energy. In the combustion device, consisting of a body and an air-turbine engine (IPD), a heat exchanger which is installed in the furnace, the latter is heated from the outside, while the amount of heat absorbed by the heat exchanger Q1equals the amount of heat coming into the ash-pit furnaces with hot gases from the output nozzle of the air turbine. The invention allows to utilize the heat of the sun, diffused in the atmosphere. 2 Il.

The invention relates to energy, mainly for electricity generation.

Known combustion device (Fundamentals of thermodynamics and heat engineering. Century, Erokhina, M., Makhanko, P. I. Samoilenko, ed. M:mechanical engineering, 1980, S. 110-113, Fig. 48. Chamber of the furnace).

The main disadvantage of existing combustion devices is that they can't recover the heat of the sun, scattered in the earth's atmosphere.

The invention consists in that the combustion of gas or coal dust in the furnace, air is injected, heated not only by the furnace gases, and also by compressing air in the compressor without the, selection of heat exchanger inspection is designed so that the temperature of hot gases over the heat exchanger was maximal, as in existing combustion devices, it is useful energy produced by the SHS, is the energy of the sun's heat, scattered in the earth's atmosphere.

In Fig. 1 shows a schematic diagram of the combustion device, consisting of 1 - hull furnaces, 2 air compressor air turbine motor (IPD), 3 - heat exchanger of the air-turbine engine (IPD), 4 - air turbine air turbine motor (SHS), 5 - drawer fuel into the combustion device 6 pipe for supplying hot air from the air turbine to the housing of the combustion device, 7 - furnace burners device, 8 - generator of electric current.

In Fig. 2 shows a diagram of heat flow in a combustion device, where:

Qandwarm atmospheric heat,

Qcm- the heat supplied to the combustion device fossil fuel,

Q4- the heat supplied to the combustion device with hot air after the air turbine ili,

Q7- heat equivalent to the energy generated by the electric generator it into the combustion device,

Qmin- minimum heat in the combustion device after the heat exchanger inspection.

The method of operation of the combustion device is as follows.

The maximum possible calorific value of fuel in a mixture with atmospheric air when the air excess factor = 1,05 is

< / BR>
On 1 kg of the mixture by chemical reaction of the combustion heat is emitted from the combustion of coal in quantities to 83.5 g, 527 QC, and from atmospheric air in the amount of 916,5 g stands 63 QC heat.

The combustion in the combustion device is organized as follows:

< / BR>
Accept: Tn= 288 Kc- Efficiency compressorc= 0,85;p-The turbine efficiencyp= 0,95 .

Substituting the values of Tn; T2; T3; CRT; Cpin equation (I) and solving it relative to e, we obtain e = 1,3

Then

That is, for every kilogram flowing into the combustion device of atmospheric air is utilized to 7.3 QC solar heat, scattered in the earth's atmosphere.

The method of operation of the combustion device, which consists in compressing air in the compressor air turbine engine, the heat absorption heat exchanger of the air-turbine engine is impressora and turbine, characterized in that provide equality of heat absorbed by the heat exchanger, the heat supplied to the burners of the combustion device with the air after the air turbine, in these conditions, the efficiency of the air compressorc= 0,85, when the efficiency of the air turbinep= 0.95 and with the degree of heating air in the heat exchanger and the compressor optimum degree of increase of air pressure in the air-turbine engine l = 1,3.

 

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