Question

1) An inventor cla ims he has developed an engine based on the otto cycle. The engine operates between the temperature range of 1200 K and 300 K and with a compressiorn or False a. True b. False A container at a pressure of 110 kPa contains 10 kmol of Co2, 5 kmol of H20, 15 kmol of 02, 20 kmol of N2 2) Mole fraction of water is 0.2 Mole fraction of water is 0.3 Mole fraction of CO2 is 0.1 Partial pressure of water is 11 kPa a. b. c. d. Air at 20 deg C has a relative humidity of 60%. What is the dew point temperature? 3) 12.8 deg C 16.1 deg C 5 deg C 20 deg C a. b. c. d. A steam power plant operates on a simple ideal rankine cycle between the pressure limits of 3 Mpa and 50 kPa. The temperature of the steam at the inlet of the turbine is 300 deg C. Draw the cycle on a T-S diagram. Show all information on the cycle and identify the different processes such as heat addition, work out etc. 4)

Answer 1

1. Thue 囗 - 5 kmo 5 D 5 o 5 6o7. Pvs in saturated mouhon Pv 2.37

4. tionノ t aool 3 Mfa Fm.the- p=3csT okfa, l sat: 233.gs.e 3-M Pump uork. theot addiHom CBo