Domestic heat pump with deep hole ground source evaporator

J.R. Goulburn and J. Fearon

Applied Energy, 1983, vol. 14, issue 2, 99-113

Abstract: A technique for absorbing low-grade heat from the ground for a ground source heat pump is described. Refrigerant is directly evaporated in U-tubes penetrating to a depth of 10 m to form the heat pump evaporator. An installation with 16 U-tubes and a heat output of 8-9 kW has been completed, with the heating demand being provided by a house. The details of the installation and experiments on system reliability, performance and effects on soil conditions are described.

Date: 1983
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