Heat transfer for slab-on-grade floors with prescribed heat flux

Journal Article · Sat Nov 01 04:00:00 EST 1997 · Journal of Solar Energy Engineering

DOI:https://doi.org/10.1115/1.2888032· OSTI ID:590128

Choi, S; Krarti, M ^[1]

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1. Univ. of Colorado, Boulder, CO (United States)

The general solution of soil temperature distribution is developed for a slab-on-grade floor with a known heat flux distribution at the slab surface. The Interzone Temperature Profile Estimation (ITPE) technique is applied to determine the steady-state variation of temperature within the ground. A water table at constant temperature is assumed to exist at a given depth below the soil surface. As a first application of the general solution, the optimum thermal insulation distribution is obtained for a slab-on-grade floor. A second application of the solution developed in this paper consists of a diagnostic method to determine the configuration and the R-value for the thermal insulation of the slab-on-grade floor based on measured data for the heat flux at the slab surface. A parametric analysis is conducted to determine the effects of heat flux profiles and water table depths on the required insulation distribution at the slab surface.

• Sponsoring Organization: USDOE
• OSTI ID: 590128
• Journal Information: Journal of Solar Energy Engineering, Journal Name: Journal of Solar Energy Engineering Journal Issue: 4 Vol. 119; ISSN JSEEDO; ISSN 0199-6231
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
FLOORS
HEAT FLUX
HEAT TRANSFER
PARAMETRIC ANALYSIS
SOILS
TEMPERATURE DISTRIBUTION
THERMAL INSULATION
WATER TABLES