Abstract
Ground-heat transfer is tightly coúpled with soil-moisture transfer. The coupling is threefold: heat is transferred by thermal conduction and by moisture transfer; the thermal properties of soil are strong functions of the moisture content; and moisture phase change includes latent heat effects and changes in thermal and hydraulic properties. A heat and moisture transfer model was developed to study the ground-coupled heat and moisture transfer from buildings. The model also includes detailed considerations of the atmospheric boundary conditions, including precipitation. Solutions for the soil temperature distribution are obtained using a finite element procedure. The model compared well with the seasonal variation of measured ground temperatures.
Original language | American English |
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Pages (from-to) | 10-16 |
Number of pages | 7 |
Journal | Journal of Solar Energy Engineering, Transactions of the ASME |
Volume | 124 |
Issue number | 1 |
DOIs | |
State | Published - 2002 |
NREL Publication Number
- NREL/JA-550-32017