Subsurface utilization as a heat sink for large-scale ground source heat pump: Case study in Bangkok, Thailand
Subsurface utilization as a heat sink for large-scale ground source heat pump: Case study in Bangkok, Thailand
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地下利用作为大型地源热泵的散热器:泰国曼谷的案例研究
DOI:
10.1016/j.renene.2021.08.116
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发表时间:
2021
期刊:
影响因子:
8.7
通讯作者:
Kurishima Hideaki
中科院分区:
文献类型:
--
作者:
Shimada Yutaro;Tokimatsu Koji;Asawa Takashi;Uchida Youhei;Tomigashi Akira;Kurishima Hideaki
Subsurface utilization in the tropical regions as a heat sink for ground source heat pumps (GSHPs) leads to thermal buildup in the long term, resulting in the decreased energy performance. However, the applicability of the GSHP in these regions has never been investigated based on the predicted heat sink temperature over a lifetime. This study aimed to evaluate the energy performance of a large-scale GSHP system in representative building models in Thailand based on operating conditions derived from a predicted 50-year heat sink temperature. The proposed system combines a GSHP and an air-source heat pump (ASHP), and, in one scenario, the GSHP also supplies hot water. The results confirm that the combined system achieves a higher efficiency than that of an ASHP system alone, and GSHP supplying hot water realizes substantial energy-saving. However, limitations on the annual GSHP operation hours are essential, resulting in low energy-saving performance for cooling dominated facilities. Further improvements are expected by mitigating the thermal interactions among each borehole heat exchanger.
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DOI:
10.9795/bullgsj.60.491
发表时间:
2009
期刊:
影响因子:
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DOI:
10.1016/j.egypro.2011.09.010
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2011
期刊:
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