A Carnot heat pump cycle is executed in a steady-flow system with R-134a flowing at a rate of 0.21567 kg/s. The net power input to the cycle is 5 kW and the ratio of the maximum to minimum temperature is 1.2. If the refrigerant changes from saturated vapor to saturated liquid during the heat rejection process, (a) plotT-v diagramof the Carnot cycle process with saturation lines, (b) determine the temperature THduring the cycle process.

On a average work day more than work place firs are reorted

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.