AIJ Journal of Technology and Design
Online ISSN : 1881-8188
Print ISSN : 1341-9463
ISSN-L : 1341-9463
Environmental Engineering
INSTALLING THE LOW FLOW CIRCULATION GROUND SOURCE HEAT PUMP SYSTEM IN THE TECHNOLOGY CENTER AND ITS PERFORMANCE ANALYSIS
Yasushi NAKAMURA, Takao KATSURA, Katsunori NAGANO
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Keywords: Ground source heat pump, Low flow circulation, Multi-split system, System coefficient of performance, Variable water volume control
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2015 Volume 21 Issue 49 Pages 1139-1142

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Abstract
The authors analyzed the low flow circulation ground source heat pump system, which has the variable water volume control in the primary side, in the office building. It is confirmed that the electric power of circulation pump was reduced as 85% compared to the constant water volume. The difference between the system COP including the circulation pump and the heat pump COP was small. Additionally, the effect of energy saving compared to the conventional air source heat pump system was 33%.
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© 2015 Architectural Institute of Japan
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