turbine-inlet temperatures of 300 K and 1345 K, respectively. The adiabatic efficiencies of the compressor and turbine are 86 and 89 percent respectively. The gas turbine exhaust, used as the energy source for a steam cycle, leaves the heat exchanger (steam boiler) at 470 K. The inlet conditions to the 85 percent efficient turbine in the steam cycle are 100 bars and 500 ºC. The condenser pressure is 0.10 bars, and the pump is 70 percent efficient. Using constant specific heat properties for air from Table A.5, determine (a) the heat input to the air, in kJ/kg of air, (b) the mass-flow rate ratio of air to steam, in kg-of air/kg of steam, (c) the net work of the gas-turbine cycle,

A simple ideal Rankine cycle with water as the working fluid operates between the pressure limits of 10 MPa in Boiler the boiler and 10 kPa in the condenser and a turbine inlet temperature of 500°C. The boiler is sized to provide a steam flow of 165 kg/s. Determine: (a)(s) the quality of the steam at the turbine exit, (b) the thermal efficiency of the cycle, and (c) 2) the net power produced by the cycle Wa Condesser Turbine

Consider a 210-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 10 MPa and 500C and is cooled in the condenser at a pressure of 10 kPa. Assuming an isentropic efficiency of 85 percent for both the turbine and the pump, determine the actual specific enthalpy (kJ/kg) at the boiler inlet. (Use 2 decimal places for the final answer.)

Problem: Water is used as the working fluid in an ideal Rankine cycle. Saturated liquid enters the pump with a specific volume of 1.2720 X 10-3m3/Kg and exits (the pump) at 1.7530 X 10-3 m3/Kg and a temperature of 380°C.The internal energy at the exit of the turbine is 2,500KJ/Kg. Determine:1. The network produced in KJ/Kg2. The heat transfer to the steam in the steam generator in KJ/Kg3. The thermal efficiency4. The heat transfer to cooling water passing through the condenser in KJ/Kg of steam condensed.

Determine the thermal efficiency

An ideal gas turbine cycle consisting of 2 stages of compression and 2 stages of expansion has an overall pressure ratio of 9. Air enters the compressors at the temperature of 320 K while, being intercooled between the stages. Air enters the first compressor at 100 kPa and the pressure ratio of cach of the compressors are selected in a way that minimizes the total power input for the compressors. The high-pressure turbine (First one) drives the compressors and the low-pressure one produces power output. The compressors and both the high-pressure and low-pressure turbines can be assumed ideal. To increase the efficiency of the cycle a regenerator with effectiveness of 85% is used to recover some heat from the exhaust of the second turbine. In this cycle, air with the temperature of 1400 K enters the first turbine. After expansion in the first turbine, air is reheated to the same temperature at the inlet of the first turbine (1400 K). You can consider constant specific heats of c,=1.005…

Consider a steam power plant that operates on the ideal reheat Rankine cycle. The plant maintains the boiler at 8000 kPa, the reheat section at 1000 kPa, and the condenser at 20 kPa. The mixture quality at the exit of both turbines is 90 percent. Determine (a) the temperature at the inlet of each turbine, (b) the cycle's thermal efficiency, efficiency of this cycle. Assume a source temperature of 1500 K and a sink temperature of 295 K. (d) the second-law

A Rankine Cycle operates at a throttle pressure and temperature of 5 MPa and 450°C, respectively. The generator produces 20 MW at an efficiency of 95% while the mechanical efficiency is 97%. The actual expansion efficiency of the turbine is 85% and the pressure of the condenser is 10 kPa. Determine the ideal engine heat rate in kJ/kWh.