What is the second-law efficiency for the total system
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Find the exergy destruction in the braking process (1 to 2) and in the cooling process (2 to 3).
Find the COP of the heat pump, the rate of exergy destruction in the heat pump and its heat exchangers, and the rate of exergy destruction in heat loss process.
A heat exchanger increases the exergy of 3 kg/s water by 1650 kJ/kg using 10 kg/s air coming. What are the irreversibility and the second-law efficiency?
Distinguish between accounts receivable and accounts payable.
Consider that the air in the previous problem after the compressor flows in a pipe to an air tool. What is the second-law efficiency for the total system?
Use constant heat capacities and find the exit temperature and the second-law efficiency for the heat exchanger, assuming ambient at 68 F.
The exit pressure is 10 psia and the actual exit temperature is 1780 R. What is the actual exit velocity and the second-law efficiency?
Asset values reported in the balance sheet are shown at market value.
Find from the literature the amount of energy that must be stored in a car to start the engine. Discuss the feasibility and cost.
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