Dynamic three-dimensional heat transfer calculation for uninsulated slab-on-ground constructions

被引：17

作者：

Chen, Dong ^{[1
,2
]}

机构：

[1] CSIRO, CSIRO Energy Transformed Flagship, Highett, Vic 3190, Australia

[2] CSIRO, CSIRO Ecosyst Sci, Highett, Vic 3190, Australia

来源：

ENERGY AND BUILDINGS | 2013年 / 60卷

关键词：

IEA BESTEST; Transient heat transfer; Ground-coupled heat transfer; Dynamic building simulation; FLOOR;

D O I：

10.1016/j.enbuild.2013.01.030

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Analytical solutions for two-dimensional steady-state and transient heat transfer from exterior ground surface are obtained for uninsulated slab-on-ground constructions. Approximate three-dimensional steady-state and transient heat transfer expressions are constructed. It is demonstrated that the approximate three-dimensional expressions give heat transfer results in satisfactory agreement with the analytical solutions and verified numerical models for the IEA BESTEST cases. The computation time for an annual simulation of the hourly floor heat transfer for the IEA BESTEST cases was found to be less than 0.1 s on a 2.6 GHz laptop computer. The proposed approximate expressions can be conveniently implemented in dynamic building simulation tools for fast ground-coupled heat transfer calculation. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.

引用

页码：420 / 428

页数：9

共 26 条

[1]

Abramowitz M., 1972, Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, P375

[2] CALCULATION OF THE STEADY-STATE HEAT-TRANSFER THROUGH A SLAB-ON-GROUND FLOOR [J].