Eluids air (k = 1.4, R = 287 J/kgK, C, = 1004.5J/kgK), burned gas (K' = 1.335. * K,1168 J/kgK) ms m-mTu m. 3 LP FG HP m. 8, M* MTU IK Ocond C T HL Consider a cogenerative GT/ST combined power plant (eg., see the figure above). The following data are provided. Steam turbine plant internal power P generator. T,-423.15K Gas turbine plant compressor m-1.279, T,-1325.15K, burner n,=0.97.nm0.97 , fuel. H,-42500 kJ/kg, (ST 60 MW, Qond=97 MW, Q65 MW, organic efficiency n.=0.95, heat recovery steam = 1 bar, T, = 293 K. B-10, polytropic exponent m=1.473; turbine: polytropic exponent %3! Evaluate: 1) The specific work of the compressor and the temperature T, 2) The specific work of the gas turbine and the temperature T, 1904 3) The heat power Q, provided by the gases to the steam in the heat recovery steam generator, as well as the mass flow rate of burned gases 4) The air-to-fuel ratio 'a' and the mass flow rates of air and fuel in the gas turbine plant 5) The net output power of the plant and the overall efficiency of the plant (assume, for the cogenerative steam turbine plant, an equivalent burner efficiency ne0.9)

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Chapter10: Heat Exchangers
Section: Chapter Questions
Problem 10.17P
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Please answer the first 3 parts. ASAP
m
m-mTU
ma
3
4.
LP FO
M
HP
m.
3,
M*
C
K
K Ocond
HL
Consider a cogenerative GT/ST combined power plant (e g., see the figure above). The following data are provided:
Steam turbine plant internal power PST-60 MW, Qond97 MW, Q-65 MW, organic efficiency n.=0.95, heat recovery steam
generator. T,-423.15K
Gas turbine plant compressor p, = 1 bar, T, = 293 K, B,-10, polytropic exponent m=1.473; turbine: polytropic exponent
m=1.279, T,=1325.15K, burner. n=0.97,n=0.97, fuel. H-42500 kJ/kg,
Fluids air (k = 1.4, R= 287 J/kgK, c = 1004.5J/kgK), burned gas (k' = 1.335, R'=293 J/kgK, c=1168 J/kgK)
iST
190
80
1) The specific work of the compressor and the temperature T,
Evaluate:
2) The specific work of the gas turbine and the temperature T,
3) The heat power Q, provided by the gases to the steam in the heat recovery steam generator, as well as the mass flow rate of
burned gases
4) The air-to-fuel ratio 'a' and the mass flow rates of air and fuel in the gas turbine plant
5) The net output power of the plant and the overall efficiency of the plant (assume, for the cogenerative steam turbine plant, an
equivalent burner efficiency ne0.9)
Transcribed Image Text:m m-mTU ma 3 4. LP FO M HP m. 3, M* C K K Ocond HL Consider a cogenerative GT/ST combined power plant (e g., see the figure above). The following data are provided: Steam turbine plant internal power PST-60 MW, Qond97 MW, Q-65 MW, organic efficiency n.=0.95, heat recovery steam generator. T,-423.15K Gas turbine plant compressor p, = 1 bar, T, = 293 K, B,-10, polytropic exponent m=1.473; turbine: polytropic exponent m=1.279, T,=1325.15K, burner. n=0.97,n=0.97, fuel. H-42500 kJ/kg, Fluids air (k = 1.4, R= 287 J/kgK, c = 1004.5J/kgK), burned gas (k' = 1.335, R'=293 J/kgK, c=1168 J/kgK) iST 190 80 1) The specific work of the compressor and the temperature T, Evaluate: 2) The specific work of the gas turbine and the temperature T, 3) The heat power Q, provided by the gases to the steam in the heat recovery steam generator, as well as the mass flow rate of burned gases 4) The air-to-fuel ratio 'a' and the mass flow rates of air and fuel in the gas turbine plant 5) The net output power of the plant and the overall efficiency of the plant (assume, for the cogenerative steam turbine plant, an equivalent burner efficiency ne0.9)
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