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Engineering, 08.10.2020 09:01 abhibhambhani

A steam power plant design consists of an ideal Rankine cycle with reheat and regeneration. Steam enters Turbine 1 at P1 and T1 at the rate of m1 and exits at P2. A fraction (y') of the steam exiting Turbine 1 is diverted to a closed feedwater heater while the remainder is reheated to T3 before entering Turbine 2. A fraction (y'') of the steam exiting Turbine 2 at P4 is diverted to an open feedwater heater while the remainder enters Turbine 3. The exit of Turbine 3 is fed into a condenser that operates at P5. Saturared liquid exits the condenser and is fed to Pump 1. The outlet of Pump 1 is fed into the open feedwater heater. Saturated liquid exits the open feedwater heater and is fed to Pump 2. The outlet of pump 2 is fed to the closed feedwater heater. Saturated liquid exits the low pressure output of the closed feedwater heater and is fed through a steam trap to the open feedwater heater. Both exits of the closed feedwater heater are at the same temperature. All turbines and pumps are isentropic.--Given Values--m1 (kg/s) = 50P1 (Bar) = 160T1 (oC) = 640P2 (Bar) = 10T3 (C) = 600P4 (Bar) = 1P5 (Bar) = 0.06a) Determine the specific enthalpy (kJ/kg) at the inlet of turbine 1. Your Answer = Correct! Exact Answer= 3573.50 +/- 1.16E+00b) Determine the specific enthalpy (kJ/kg) at the exit of turbine 1. Your Answer =c) Determine the specific enthalpy (kJ/kg) at the inlet of turbine 2 . Your Answer =d) Determine the specific enthalpy (kJ/kg) at the exit of turbine 2. Your Answer =e) Determine the specific enthalpy (kJ/kg) at the condenser exit. Your Answer =f) Determine the specific enthalpy (kJ/kg) at the exit of the low pressure pump. Your Answer =g) Determine the specific enthalpy (kJ/kg) at the exit of the feedwater heater. Your Answer =h) Determine the specific enthalpy (kJ/kg) at the exit of the high pressure pump. Your Answer =i) Determine the fraction (y') of flow diverted to the open feedwater heater. Your Answer =j) Determine the power (MW) produced by turbine 1. Your Answer =k) Determine the power (MW) produced by turbine 2. Your Answer =l) Determine the power (kW) required (a positive number) by the low pressure pump. Your Answer =m) Determine the power (kW) required (a positive number) by the high pressure pump. Your Answer =n) Determine the total rate of heat transfer (MW) supplied to the boiler. Your Answer =o) Determine the thermal efficiency (%) of the power plant. Your Answer =

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