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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Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.