Efficiency and economic analysis of utilizing latent heat from groundwater freezing in the context of borehole heat exchanger coupled ground source heat pump systems
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- 作者：Tianyuan Zhenga ; b ; tianyuan.zheng@ufz.de" class="auth_mail" title="E-mail the corresponding author ; Haibing Shaoa ; d ; haibing.shao@ufz.de" class="auth_mail" title="E-mail the corresponding author ; Sophie Schelenza ; sophie.schelenz@ufz.de" class="auth_mail" title="E-mail the corresponding author ; Philipp Heinc ; a ; philipp.hein@ufz.de" class="auth_mail" title="E-mail the corresponding author ; Thomas Vienkena ; thomas.vienken@ufz.de" class="auth_mail" title="E-mail the corresponding author ; Zhonghe Pange ; z.pang@mail.iggcas.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Olaf Kolditza ; b ; olaf.kolditz@ufz.de" class="auth_mail" title="E-mail the corresponding author ; Thomas Nagela ; f ; thomas.nagel@ufz.de" class="auth_mail" title="E-mail the corresponding author
- 关键词：Shallow geothermal energy ; Soil freezing ; Borehole heat exchanger (BHE) ; Ground source heat pump system (GSHPS) ; Coefficient of performance (COP) ; OpenGeoSys
- 刊名：Applied Thermal Engineering
- 出版年：2016
- 出版时间：25 July 2016
- 年：2016
- 卷：105
- 期：Complete
- 页码：314-326
- 全文大小：1954 K
文摘
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A numerical model was developed to simulate BHE induced soil freezing.
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Latent heat from freezing slows down the BHE outlet temperature drop.
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COP corrected boundary condition produces more realistic estimation.
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Longer BHE do not always lead to a better financial performance over 30 years.
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Total cost of GSHPS depends heavily on electricity price and interest rate.