Browsing School of Biosystems Engineering by Subject "Ground source energy"

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Design and development of a low-cost thermal response rig

Hemmingway, Phil ; Long, Michael (Michael M.) (Institution of Civil Engineers, 2012-08-01)

A thermal response test (TRT) is a controlled insitu test during which a known quantity of heat energy is injected into a closed loop heat-exchanger pipe while the heat dissipation rate into the surrounding ground is ...
Numerical and finite element analysis of heat transfer in a closed loop geothermal system

Hemmingway, Phil ; Tolooiyan, Ali (Taylor & Francis, 2013)

Analysis of the thermal regime created by a geothermal borehole heat exchanger is performed using a closed form radial heat flow equation, a geothermal borehole heat exchanger design tool and a finite element model. ...
Thermal response testing of compromised borehole heat exchangers

Hemmingway, Phil ; Long, Michael (Michael M.) (Oxford University Press, 2012-03-19)

The results of five thermal response tests (TRTs) are presented. Three of the tests were carried out consecutively on the same borehole to illustrate the importance of allowing artificially imposed thermal gradients to ...