In air standard brayton cycle the air enters the compressor at 100 kpa, 300 k. the pressure at the end

compression process is 500 kpa and the maximum temperature in the cycle is limited to 1200 k. calculate (a)

the pressure and temperature at each point in the cycle, (b) the compressor work, the turbine work and cycle

efficiency. assume specific heats to be constant.

Liquid flows at steady state at a rate of 2 lb/'s through a pump, which operates to raise the elevation of the liquid 100 ft from control volume inlet to exit. the liquid specific enthalpy at the inlet is 40.09 btu/lb and at the exit is 40.94 btub. the pump requires 3 btu/s of power to operate. if kinetic energy effects are negligible and gravitational acceleration is 32.174 tt/s, the heat transfer rate associated with this steady state process is most closely 1)-2,02 btu/s from the liquid to the surroundings 2)-3.98 btu/s from the surroundings to the liquid. 3)-4.96 btu/s from the surroundings to the liquid. 4)-1.04 btu/s from the liquid to the surroundings.