Numerical model for non-grouted borehole heat exchangers, Part 2—Evaluation
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- 作者：Henrik Holmberga ; henrik.holmberg@ntnu.no" class="auth_mail" title="E-mail the corresponding author ; José ; Acuñ ; ab ; Erling Næ ; ssa ; Otto K. Sø ; njuc
- 关键词：BHE ; borehole heat exchanger ; TRT ; thermal response test ; DTRT ; distributed thermal response test ; DTS ; distributed temperature sensing ; TRCM ; thermal resistance and capacity model
- 刊名：Geothermics
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：59
- 期：part_PA
- 页码：134-144
- 全文大小：2007 K
文摘
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Detailed DTRT and heat pump measurement of a 261 m water filled BHE are presented.
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The numerical model accurately replicates the detailed experimental measurements.
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Transient effects during heat pump cycles and response test are analyzed.
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Model predicts distinct changes in borehole resistance related to natural convection.
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Natural convection dramatically reduces the internal resistance.