1987•Lund University Publications (Lund University)Open access

Thermal analysis of heat extraction boreholes

Per Eskilson

Abstract

Introduction 2 Assumptions and simplifications 3 Effect of the geothermal gradient 4 Mathematical formulation S Heat extraction step 6 Steady-state solution 7 Approximations for the g-function 8 Periodic heat extraction 9 Superposition using the basic solutions 10 Effect of groundwater filtration 11 D.isturbance at the ground surface Appendix.Analytical solutions using line sinks Page Re£ erences

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Key concepts: Borehole, Extraction (chemistry), Environmental science, Geology, Petroleum engineering, Geotechnical engineering, Chemistry, Chromatography