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A mobile in-situ testing equipment used to detect geotechnical thermophysical properties was developed.The equipment is composed of a heat pump,frequency pumps,an electric tee joint regulator valve,some sensors,an electric control system,data acquisition and control system,which can do tests under the condition of extracting and storing subsurface heat.Applying the line source and the cylinder source heat transfer model,and combining the parameters estimation,the average thermophysical property parameters of rock and soil will be calculated,which provides the basis for designing the ground source heat pump systems.
A mobile in-situ testing equipment used to detect geotechnical thermophysical properties was developed. The equipment is composed of a heat pump, frequency pumps, an electric tee joint regulator valve, some sensors, an electric control system, data acquisition and control system, which can do tests under the condition of extracting and storing subsurface heat. Applying the line source and the cylinder source heat transfer model, and combining the parameters estimation, the average thermophysical property parameters of rock and soil will be calculated, which provides the basis for designing the ground source heat pump systems.