|Table of Contents|

Method to determine soil thermo-physical parameters based on thermal response of infinite cylinder

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2013年02期
Page:
305-
Research Field:
Publishing date:

Info

Title:
Method to determine soil thermo-physical parameters based on thermal response of infinite cylinder
Author(s):
Yu YanshunXu LeiChen ShuifengQian Puhua
School of Energy and Power Engineering,NUST,Nanjing 210094,China
Keywords:
ground source heat pump thermal response test soil thermo-physical parameters shape correction coefficients
PACS:
TU832.1
DOI:
-
Abstract:
The soil thermo-physical parameters are important factors for the design and operation of the ground source heat pump system.Based on the unsteady heat transfer theory of the semi-infinite body with the constant heat flux,the thermal response of the infinite cylinder is presented by introducing a shape correction coefficient,and the expressions of the soil thermal conductivity and the thermal diffusivity are obtained by data processing.Applying the presented theory,a soil thermal response test of the ground source heat pump system is performed for a residential building located in Yangzhou city.The results show that the soil thermal conductivity and thermal diffusivity are 1.03 W/(m·℃)and 0.231 mm2/s respectively,and the theoretical results are in good agreement with the test.

References:

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Last Update: 2013-04-30