thermodynamics questions with answers
3 multiple-choice questions. Open any question for its answer and explanation.
- A heat engine receives heat from a source at 1600 K at a rate of 400 kW and rejects the waste heat to a medium at 400 K. If the power output from the heat engine is 200 kW, the irreversibility rate for the process is :
- In a Bell Coleman Refrigeration plant, compression and expansion of air are isentropic. If the temperature of air entering and leaving the expander are 400 K and 200 K respectively then what will be the COP of the plant ? then what will be the COP of the plant ?
- COP of heat pump is greater than the COP of refrigerator by