In this study, mobile measurement devices and a thermal response test for the application of a standing column well (SCW)-type heat exchanger have been developed for obtaining design parameters from on-site measurements. The main objective of this study is to determine the effect ​​of the in situ thermal conductivity and thermal resistance of the ground, including the flow and effect of natural convection of groundwater in a borehole. Constant heating power is injected into the SCW through the test rig, and the gradient temperature of the SCW is recorded. These temperature data are analyzed using a source model that indicates the values of the effective in situ thermal resistance and thermal conductivity of rocks. The thermal resistance and thermal conductivity were, respectively, ~44.91% and ~6.56% higher in the lower return pipe than in the upper return pipe.

standing column well (SCW), thermal response test, thermal resistance, effective thermal conductivity.