Chapter 8, Problem 8.12E

Which statement/s are true? Heat is transferred to a system by either an air-sourced Carnot heat pump, an electrical resistance heater or a heat source at temperature marginally higher than the system temperature. The loss of Carnot Work Potential (Exergy destruction, or T0Sloss term) is minimum when heat is added by the air-sourced Carnot heat pump.   Heat is transferred to a system either by an 100% efficient electrical resistance heater, or an 100% efficient isothermal heat source. The loss of Carnot Work Potential (Exergy destruction, or T0Sloss term) is zero when heat is added by the isothermal heat source.   Heat is transferred to a system by either an air-sourced Carnot heat pump, an electrical resistance heater, or a heat source at temperature marginally higher than the system temperature. The loss of Carnot Work Potential (Exergy destruction, or T0Sloss term) is maximum when heat is added by the electric resistance heater.   Heat is transferred to a system by either a…

3. thermodynamics please answer asap

13

A single-pressure combined-cycle power plant consisting of a gas turbine, HRSG, and steam turbine plant. The gas turbine exhaust gas flow rate is 600 kg/s, temperature is 600°C, live steam condition is 70 bar/500°C, condenser pressure is 0.04 bar, and feedwater temperature is 140°C. Assuming a pinch point of 12 K for both high and low pressure, an exhaust gas specific heat of 1.05 kJ/(kg K), and an isentropic efficiency of the steam turbine of 0.9, calculate: (a) the rate of steam production in kg/s, (b) the stack gas temperature in °C, (c) the steam turbine power output in MW, and (d) the heat transfer rate in the HRSG in kJ/s.

How does "power producing cycle" be applied in agriculture and machinery?

In a fuel fired steam-electric power plant, the output required is 250MW over a 10 hour period. Given the following efficiencies, Generator-90%, Turbine – 50%, Boiler – 85%; give the output power (in units as required) for each stage of the plant:i)Turbine (BTU) ii)Boiler (BTU)

Question 2.1

Please help and show solution please

Steam is the working fluid in the ideal reheat cycle shown in the following figure together with operational data. If the mass flow rate is 1.3 kg/s, determine the power developed by the cycle, in kW, and the cycle thermal efficiency. 6 p = 140 bar p = 15 bar p = 1 bar State 1 2 3 4 5 6 p (bar) 140 15 15 1 1 140 T (°C) 520.0 201.2 428.9 99.63 99.63 h (kJ/kg) 3377.8 2800.0 3318.5 2675.5 417.46 431.96