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Calculate the minimum power required to drive the heat pump

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Reference no: EM131559080

Qno1. A vehicle's engine hasan output power of 75 hp. Its thermal efficiency is 20 %. If the fuel has heating value of 18500 Btu/lbm, find the rate of consumed fuel.

Qno2. A refrigerator maintains 3oC of temperature by eliminating heat from it at 300 kJ/min.
If the refrigerator's input power is 3 kW, determine:
(a) The performance coefficient of the refrigerator
(b) The heat rejection rate(to the room where refrigerator is placed)

Qno3. A Carnot heat engine is shown in the figure below. Determine
(a) The thermal efficiency
(b) The amount of heat rejected

1570_Figure.jpg


Qno4. Calculate the minimum power required to drive the heat pump to maintain a temperature of 22°C inside the house. Other required values are shown in the figure below:

2093_Figure1.jpg

Qno5. Cooling of a 500-MW steam power plant is doneby a river nearby. It has a thermal efficiency of 30 percent. Find the rate of heat transferred to the river. Is the actual heat transfer rate same as this or is it higher or lower than the calculated one? Reason?

Reference no: EM131559080

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