Determine the second law availability efficiency

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1. A new solar collection system has a net input availability rate of 600. kJ/s and an availability destruction rate of 80.0 kJ/s. Determine the second law availability efficiency of this system if it loses availability at a rate of 345 kJ/s to the surroundings.

2. A closed domestic gas hot water heater contains 415 lbm of water at 45.0°F. Determine the first and second law efficiencies as this water is heated to 130.°F using 39,589 Btu from a gas burner. The temperature of the local environment (ground state) is 55.0°F.

Reference no: EM131294639

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