A boiler produces 25 kg/s of steam at 3 MPa and 600 °C, cools the condenser with seawater so that the outlet is at 45 °C, then reheats at 500 kPa up to 400 °C, then takes perform a low pressure expansion in the turbine. Determine: net power output

Ideal air enters a compressor at 100 kPa and is compressed to 150 kPa. The isentropic efficiency is 70%. For a mass flow rate of 10 (kg/s), find the exit temperature.

A heat pump is used for warming a house during winter and cooling it over summer. The temperature inside the house is set to 19o C during winter and 24o C during summer. The heat is transferred through the house walls and is estimated to be 2200 kJ/hro C. During winter, the outside temperature is 2o C. What is the maximal power required to operate the pump engine? Using the maximal power obtained for (a) to cool down the house during summer. If the house temperature should be maintained on 24o C, what will be the maximum temperature outside?

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)