The way of working of gas turbine engine solar heat

 

(57) Abstract:

The invention relates to the field of energy and can be used to produce electricity and heat. The way of working of gas turbine engine is in the compression of air in the compressor, combustion with fuel in the combustion chamber, the expansion in the gas turbine and electricity generator. Thus the amount of heat supplied by the burner fuel supply into the combustion chamber (Qcm), is equal to the amount of heat flowing into the gas heat exchanger (Q4); The efficiency of the compressed airc= 0,85, the efficiency of the gas expansionp= 0,92; Tn= 288 K = 7; T3= 1090 K; Qe= Qn= 69 kcal/kg, Qcm= Q3- Q2= Q4= 171 kcal/kg; QT= Q4- Q5= 171 - 79 = 92 kcal/kg With the terms of the efficiency of thermal power plantsIR= 0,4 thermal efficiency of the CCD solar heat

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The invention relates to the field of energy and can be used to produce electricity and heat. Analogue of the invention are existing (TVD) turboprop engines (source of information "Theory of jet engines", authors: B. S. Stechkin b.p. Canadian and other Ed. 1985, Moscow, Abaroa electric current. In the operating theatre of solar heat accumulated in the air and incoming air compressor TVD emitted into the atmosphere with temperature T4after the gas turbine turboprop engine. The disadvantage of TVD is just that, to improve the efficiency of TVD, the temperature of the inlet gas to allow the apparatus of the gas turbine is relatively high, which reduces the technical resource of ili and increases the cost of TVD.

Known the way of working of gas turbine engine by compressing air in the compressor, combustion with fuel in the combustion chamber, the expansion in the gas turbine and electricity generator (SU 1388570 A1, F 02 C 3/00, 15.04.88). The disadvantage of this method is low efficiency and insufficient use of heat received.

The invention consists in that the operating parameters of the CCD, the operation mode of the CCD is designed so that the heat equivalent of generated electricity, equal to (Qn) atmospheric heat, and heat is discharged into the gas heat exchanger water heating (Q4), was the warmth of the air-fuel mixture.

That is, Q3- Q2= Q4= Qcm. (1)

In this way HT is the heat absorbed by the heat exchanger Qt= Q4- Q5.

The drawing shows a kinematic diagram of the CCD solar heat and the way it works, where:

1 - air compressor GTE;

2 - combustion chamber gas turbine engines;

3 - injector fuel supply into the combustion chamber;

4 - gas turbine GTE;

5 is a generator of electric current;

6 - water pump;

7 - gas heat exchanger;

8 - cooled heat sink;

9 is a consumer of electricity and hot water.

The possibility of carrying out the invention with the implementation of this method is confirmed by the presence and use in the aviation and Maritime theater.

The result specified in the invention, obtained in the case of the CCD mode, when: Qcm= Q4= Q3- Q2where Qcm- heat obtained from the combustion of air-fuel mixture (QC), Q3- absolute heat 1 kg of gas at the entrance to allow the apparatus of the turbine GTE, Q2- absolute heat 1 kg of air after its compression in the compressor GTE, Q4the absolute heat of the gas after the pressure drop and the gas temperature in a gas turbine GTE (process heat).

Qe- heat equivalent of electricity generated.

Qthe conditions Qe= Q3- Q4- Q2+ Qn= Q4- Q4+ Qn= Qn.

That is, the generation of electricity when the operation mode of the CCD occurs due to atmospheric heat.

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Accept the known composition:

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l - degree of increase of air pressure in GTD,

P2- the air pressure at the compressor outlet,

Pn- the air pressure at the inlet to the compressor,

K is the adiabatic exponent of compression (expansion) of the air,

- specific heat of air at constant pressure is a function of absolute temperature (T (K)),

Tnis the absolute temperature of the atmospheric air,

T2is the absolute temperature of the air after compression it in the air compressor GTE,

T3is the absolute temperature of the gases at the inlet to allow them to the apparatus of the gas turbine GTE,

T5is the absolute temperature of the gases at the outlet of the gas heat exchanger,

Q5the warmth of one kg of gas discharged into the atmosphere.

Accept:

Tn= 288 K; T5= 340 K;

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Solving equation (1) with respect to "l".

According to equation >- The efficiency of the gas expansion in the CCD;

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multiply the equation on

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al2- bl + c = 0

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Accept:

c= 0,85;p= 0,92; Tn= 288;

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1,125 l2- 2,03 l + 0,15 = 0.

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;

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Taking into account the efficiency of electricity at thermal vapour power unitsdog= 0,4, thermal efficiency of the CCD solar heat (E)

.

Cleaner way to generate electricity and heat. Saving 80% of the fuel.

The way of working of gas turbine engine (GTE) by compressing air in the compressor, combustion with fuel in the combustion chamber, the expansion in the gas turbine and electricity generator, wherein the amount of heat supplied by the burner fuel supply into the combustion chamber (Qcm), is equal to the amount of heat flowing into the gas heat exchanger (Q4), and when the efficiency of the compressed airc= 0,85, the efficiency of the gas expansionp= 0,92; T = 288 To get = 7; T3= 1090 K; Qe= Qn= 69 kcal/kg, Qcm= Q3- Q2= Q4= 171 kcal/kg; QT= Q4- Q5= 171-79 = 92 kcal/kg BR> where l is the degree of pressure increase in CCD;

P2- the air pressure at the outlet of the compressor;

Pn- the air pressure at the inlet to the compressor;

To - the index of adiabatic compression (expansion) of air;

the degree of compression;

T3is the absolute temperature of the gases at the inlet to allow them to the apparatus of the gas turbine GTE;

Qe- heat equivalent of generated electricity;

Qnatmospheric heat;

Qcm- the amount of heat supplied by the burner fuel supply into the combustion chamber;

Q3- absolute heat 1 kg of gas at the entrance to allow the turbine apparatus of the CCD;

Q2- absolute heat 1 kg of air after compression it in the GTE compressor;

Q4the absolute heat of the gas after the pressure drop and the gas temperature in a gas turbine GTE (process heat);

Qt- the heat absorbed by the heat exchanger;

Q5- heat 1 kg of gas discharged into the atmosphere.

 

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