Establishment and simulation of heat and moisture transfer model outside the borehole based on finite length cylindrical surface

Author

Yating Zhang ; Ye Zhang

Author_Institution

Beijing Univ. of Technol., Beijing, China

fYear

2013

fDate

25-27 May 2013

Firstpage

2696

Lastpage

2700

Abstract

Established the vertical ground source heat exchanger´s finite length cylindrical surface heat and moisture transfer model based on the mass and energy conservation theory. Simulated the non-steady-state heat and moisture transfer of soil around the ground source heat exchanger with COMSOL multi-physics coupling analysis software, and analyzed the influence in temperature and moisture field outside the borehole caused by the heat and moisture transfer in different soil thermal properties and initial moisture contents conditions.

Keywords

heat exchangers; heat transfer; soil; COMSOL multiphysics coupling analysis software; borehole; energy conservation theory; finite length cylindrical surface; heat transfer model; initial moisture content condition; mass conservation theory; moisture field; moisture transfer model; nonsteady-state heat-moisture transfer; soil; soil thermal properties; temperature field; vertical ground source heat exchanger; Heat transfer; Heating; Mathematical model; Moisture; Soil; Temperature distribution; Cylindrical Surface; Heat and Moisture Transfer; Mass and Energy Conservation; Non-steady-state Heat Transfer;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference (CCDC), 2013 25th Chinese

Conference_Location

Guiyang

Print_ISBN

978-1-4673-5533-9

Type

conf

DOI

10.1109/CCDC.2013.6561398

Filename

6561398