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ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

International Heat Transfer Conference 13
August, 13-18, 2006, Sydney, Australia

NUMERICAL STUDY OF HEAT TRANSFER OF A SINGLE U-TUBE IN VERTICAL GROUND-COUPLED HEAT PUMP SYSTEMS

Get access (open in a dialog) DOI: 10.1615/IHTC13.p18.70
9 pages

Аннотация

The heat transfer rate of a single U-tube ground heat exchanger was studied numerically. First, a 3D 60-m full scale computational model of a working single U-tube ground heat exchanger was built and numerical simulation was performed. The simulation was validated by comparing numerically calculated results with experimental results. After that, two models are built to compute the heat extraction rate of a single U-tube of a heat pump operating in both cooling and heating mode, under both continuous and cyclic operation. The effects of borehole depth, inlet temperature and velocity of the heat transfer medium on the heat transfer rate were investigated, for both cooling and heating mode, continuous and cyclic operation.