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In: Mechanical Engineering

Q1. You want to keep the indoor temperature of an office at 25oC. The outdoor temperature...

Q1. You want to keep the indoor temperature of an office at 25oC. The outdoor temperature is 5oC. The heat transfer through the building’s exterior is 3 x 106 kJ. To achieve the desired indoor temperature, you are exploring three heat pumps operating between the office interior and: (i) the ground at 12oC; (ii) a pond at 10oC; and (iii) the air outside at 5oC.

For each case, what is the minimum theoretical net work input (in kJ) any heat pump would require?

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