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A heat pump has heat-transfer addition at 280 K and heat transfer out at 420 K, and the heat-transfer rate out at 420 K is 900 kJ/min. For each case below, determine from both the Clausis inequality and the Carnot principle for a heat pump whether the cycle is reversible, irreversible or impossible.
a. QL=580 KJ/min
b. W=280 KJ/min
c. QL=600 KJ/min
Saturated Steam is to be condensed on the shell side of a heat exchanger at 75°F. Cooling water enters the tubes at 50°F at a rate of 45 lbm/s and leaves at 65°F. Assuming the heat exchanger to be well-insulated, determine the rate of heat transfer i..
A mouse trap car the length of the car is 41.5cmm and width of the car is 9 cm Length of Cirrus is 32 cm, the Length of the rope that connected from the cirrus till the from wheels is 56 cm, the Height of the vehicle from the ground is 3 cm, The leng..
an inventor claims to have developed a refrigeration unit that maintains a cold space at -10degc while operating in a
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