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.
Answers: 2
=20°C = 273 K + 20 = 293 K
=15°C = 273 K + 15 = 288 K
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Aheating system must maintain the interior of a building at 20°c during a period when the outside ai...
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