Question

Mutah University Faculty of Eng mies I Prof. M. Abu-Zaid Exam. 2 Date: 20-12-2018 Problem () Steam enters a turbine with a mass flow rate o turbine develops a power of 1000 KW. At the inlet the pr MPa, the temperature is 400 °C, and the veloeity is exit, the pressure is 10 KPa, the quality is 0.9, and the velocity is (8 marks) pressure is 6 At the 10 m/s. m/s. Determine the rate of heat transfer to the surrounding, in Kw. Problem (2 Air at 80 KPa, 27 °C, and 220 m/s enters a diffuser at a mass rate of 2.5 kg/s and leaves at 42 °C. The exit area of the diffuser is 400 cm . The heat transfer rate to the surrounding is 18 KJ/s. Dete (8 marks) flow (a) The exit velocity (b) The exit pressure of the air. (9 marks) Problem (3) In an insulated heat exchanger, steam at 20 KPa, quality 0.95 with mass flow rate 20000 kg/hr, the steam leave as saturated liquid at KPa.. It is to be cooled by water, the inlet temperature of the c water is 10 °C, and the exit temperature is 20 °C. Determine the nm flow rate of the cooling water (kg/s.). GOOD LUCK

Answer 1