Since ground-coupled heat pump system (GCHPs) has been more and more widely applied, it is vital to build an accurate method for sizing borehole heat exchangers (BHEs), and the methods for determining the heat transfer between the boreholes and surrounding ground under time-varying loads in different time scales are the kernel of optimizing design of BHEs, which is helpful to obtain accurate results and significantly decrease computation time consuming. This paper summarizes computational methods for the ground thermal response of BHE under time-varying loads and thermal interaction of multiple BHEs, compares the representative design tools in terms of their performance characteristics, and analyzes the direct applications of computational methods in thermal response test (TRT) and operating performance simulation of GCHPs. Finally, some recommendations for future development of computational methods are proposed. (C) 2018 Elsevier Ltd. All rights reserved.
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Oklahoma State Univ, Div Engn Technol, Stillwater, OK 74078 USAOklahoma State Univ, Div Engn Technol, Stillwater, OK 74078 USA
Beier, Richard A.
Fossa, Marco
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Univ Genoa, Dime Dept Mech Energy Management & Transportat En, Via Opera Pia 15, I-16145 Genoa, ItalyOklahoma State Univ, Div Engn Technol, Stillwater, OK 74078 USA
Fossa, Marco
Morchio, Stefano
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Univ Genoa, Dime Dept Mech Energy Management & Transportat En, Via Opera Pia 15, I-16145 Genoa, ItalyOklahoma State Univ, Div Engn Technol, Stillwater, OK 74078 USA
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City Univ Hong Kong, Dept Civil & Architectural Engn, Kowloon, Hong Kong, Peoples R ChinaCity Univ Hong Kong, Dept Civil & Architectural Engn, Kowloon, Hong Kong, Peoples R China
Li, Min
Lai, Alvin C. K.
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City Univ Hong Kong, Dept Civil & Architectural Engn, Kowloon, Hong Kong, Peoples R ChinaCity Univ Hong Kong, Dept Civil & Architectural Engn, Kowloon, Hong Kong, Peoples R China