Engineering, 09.11.2019 06:31, Bryson2148

Aheating system must maintain the interior of a building at 20°c during a period when the outside air temperature is 5°c and the heat transfer from the building through its roof and walls is 3 × 106 kj. for this duty heat pumps are under consideration that would operate between the dwelling and
a. the ground at 15°c.
b. a pond at 10°c.
c. the outside air at 5°c.

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Aheating system must maintain the interior of a building at 20°c during a period when the outside ai...