In a reheat cycle steam at 8.0 MPa and 485C enters the turbine and expands to 1.4 MPa. At this point, the steam is withdrawn and passed through a reheater. It re-enters the turbine at 1.3 MPa and 720°C. Expansion now occurs to the condenser pressure of 0.006 MPa.For the cycle and 1 kg of steam determine Q.,Wn, W,  e, and the steam flow for an engine and For the engine output of 40,000kW.

A flashed steam geothermal power plant is located where underground hot water is available as a saturated liquid at 700 kPa. The well-head pressure is 600 kPa. The flashed steam enters the steam turbine at 500 kPa and expands to 15 kPa when it is condensed. The flow rate from the well is 29.6 kg/s. Determine the cycle thermal efficiency of the plant in %. If the steam table is needed, please use the green book entitled "Thermodynamics Properties of Water Including Vapor, Liquid, and Solid Phases" by Keenan, Keyes, Hill, and Moore.

Compare the thermal efficiency and turbine-exit quality (temperature if superheated) at the condenser pressure for a simple Rankine cycle and the reheat cycle when the boiler pressure is 5 MPa, the boiler exit temperature is 500°C, and the condenser pressure is 20 kPa. The reheat takes place at 0.5 MPa and the steam leaves the reheater at 500°C. (Enthalpies are in KJ/kg.) Without the reheater, the heat added is: The enthalpy entering the condenser is: The net Work is: The enthalpy entering the reheater is: Without the reheater, the net Work is:

Hi, I need help with this practice problem for Thermodynamics

Oren is hired to design a massive 450 MW power plant for the city of Dubai. Oren decides that the optimal efficiency would be obtained if the pressure of saturdted vapár entering the turbine should be 10 MPa.and the presJure of saturated liquid exiting the condensor to be 0.005 MPa. Dubai is in the United Arab Emirates (UAE), where the water from the Persian Gulf is 4O °C and UAE environmental laws limit the exiting coa ling water to a maximum temperature of 45°C (to prevent damage to local fishing industry). For Oren's power plant, calculate : A.) heat input from the boiler (in MegaWatts) B.) thermal efficiency C.) mass flow rate of caoling water (in k/s)