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Future Cities and Environment
Articles
Table 5 COP of the heat pump, with hot water delivered at 40 °C
From:
Planned energy-efficient retrofitting of a residential building in Italy
Frequency [Hz]
T
e
[°C]
110
90
70
50
30
−7
2.65
2.71
2.67
2.51
2.15
2
3.27
3.38
3.39
3.21
2.78
7
3.75
3.85
3.88
3.72
3.22
12
4.29
4.44
4.49
4.30
3.76
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