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Heat Storage in Aquifers Analyzed by the Finite Element Method
Author(s) -
Wiberg NilsErik
Publication year - 1982
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.1982.tb02747.x
Subject(s) - mechanics , convection , thermal conduction , thermal energy storage , transient (computer programming) , convective heat transfer , aquifer , heat transfer , finite element method , thermodynamics , materials science , geology , geotechnical engineering , physics , groundwater , computer science , operating system
In the design of ground‐water heat pump systems the quantitative analysis of heat transport and heat storage is of great interest. A unified finite element approach to the transient nonlinear heat transport and heat storage problem is presented. The theory presented includes nonlinear physical properties and boundary conditions, coupled conductive and convective heat flow, freezing (phase change), and time‐dependent heat input and output. The given theory is applied to two problems. The first problem is a transient study during a few years of heat storage in saturated clay. A pure conductive theory is used due to the small amount of convective water flow in clay. The second problem deals with transient heat transport in an aquifer according to coupled conduction‐convection theory on a one‐dimensional model problem.