Title :
Modeling and simulation of heat and moisture transfer of the geothermal borehole
Author :
Quanwen Jiao ; Yating Zhang
Author_Institution :
Coll. of Electron. Inf. & Control Eng., Beijing Univ. of Technol., Beijing, China
fDate :
May 31 2014-June 2 2014
Abstract :
According to the mass conservation and energy conservation theorem, established a finite length cylindrical surface heat and moisture transfer model which base on the cylindrical heat transfer model of vertical ground source heat exchanger for soil layer around geothermal borehole. Using COMSOL multi-physics coupling analysis software, simulated the non-steady-state heat and moisture transfer for soil layers of heat exchanger under summer operating conditions, and analyzed the influence in temperature field and moisture field of soil layers exerted by the heat and moisture transfer under different soil thermal properties and initial moisture contents. At last there is verification by FLUENT software.
Keywords :
geotechnical engineering; heat exchangers; heat transfer; mechanical engineering computing; soil; COMSOL multiphysics coupling analysis software; FLUENT software; energy conservation theorem; finite length cylindrical surface heat transfer model; geothermal borehole; mass conservation theorem; moisture transfer model; soil initial moisture contents; soil layer; soil thermal properties; summer operating conditions; vertical ground source heat exchanger; Heat transfer; Heating; Land surface temperature; Mathematical model; Moisture; Soil; Coupling Analysis; Cylindrical Surface; Ground Source Heat Exchanger; Heat and Moisture Transfer;
Conference_Titel :
Control and Decision Conference (2014 CCDC), The 26th Chinese
Conference_Location :
Changsha
Print_ISBN :
978-1-4799-3707-3
DOI :
10.1109/CCDC.2014.6852753
