Thermal Efficiency Comparison of Borehole Heat Exchangers with Different Drillhole Diameters

Thermal efficiency of borehole heat exchangers (BHE) is of crucial importance for the design and optimization of ground source heat pump (GSHP) system. This paper investigates thermal efficiency of a BHE with three drillhole diameters: 121 mm, 165 mm and 180 mm. The BHE was installed in a GSHP syste...

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Bibliographic Details
Main Authors: Anna Priess, Joachim Rohn, Manfred Bayer, Jin Luo
Format: Article
Language:English
Published: MDPI AG 2013-08-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/6/8/4187