For the system ethyl ethanoate(1)/n-heptane(2) at 343.15 K, lnγ1 = 0.95x2 2; lnγ2 = 0.95x1 2; P1 sat = 79.80 kPa; and P2 sat = 40.50 kPa. Assuming the validity of Eq. (13.19), (a) Make a BUBL P calculation for T = 343.15 K, x1 = 0.05. (b) Make a DEW P calculation for T = 343.15 K, y1 = 0.05.

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]

Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency

Heat transfer by is the fastest mode of heat transfer that requires no intervening medium. a)-conduction b)-convection c)-radiation d)-conduction and convection