Thermal performance evaluation of vertical U-loop ground heat exchanger using in-situ thermal response test

Keun Sun Chang and Min Jun Kim

Renewable Energy, 2016, vol. 87, issue P1, 585-591

Abstract: An in-situ thermal response test is applied to the thermal performance evaluation of the vertical closed U-loop ground heat exchangers (GHX). A line source method is used to derive the thermal conductivity and borehole thermal resistance from data obtained by the thermal response test. Tests are made for four types of GHXs with different borehole configurations. Results are presented in terms of configuration and operating parameters of GHXs to investigate their effects on the thermal performances.

Keywords: Vertical U-loop ground heat exchanger; Thermal response test; Effective thermal conductivity; Bore hole thermal resistance; Design parameter (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (12)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:87:y:2016:i:p1:p:585-591

DOI: 10.1016/j.renene.2015.10.059

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