Consider a simple rankine cycle in which the pressure ratio is 120.00, operating at a mass flow rate of 1.5 kg/s. when the working fluid (water) contains the greatest energy, it is at 1.2 mpa and 350 °c. (a) if this cycle requires 4357 kw of heat to operate, then what is the isentropic efficiency of the pump? (b) if water enters the condenser with a quality of 1.0, then what is the isentropic efficiency of the turbine?

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.