A foundation heat transfer algorithm for detailed building energy programs

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:33302

Krarti, M; Kreider, J F ^[1]; Claridge, D E ^[2]

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1. Univ. of Colorado, Boulder, CO (United States). Joint Center for Energy Management
2. Texas A and M Univ., College Station, TX (United States). Mechanical Engineering Dept.

This paper describes an algorithm that calculates heat transfer between the ground and buildings. The algorithm an handle more than 37 building foundation/insulation configurations, including basements, slabs, and crawl spaces with full, partial, and no insulation. The solution method on which the algorithm is based is outlined. The required input data are described and references are listed to help the user Determine the appropriate values for some of the input parameters. As an application of the algorithm, analyses of the effect of the insulation configuration on heat transfer from both slabs and basements are briefly presented. Spectral sensitivity analysis is conducted to determine the effect of cyclic changes of indoor and outdoor temperature on foundation heat transfer. Finally, implementation of the foundation heat transfer calculation algorithm in a commonly used hourly building simulation program is demonstrated.

• OSTI ID: 33302
• Report Number(s): CONF-9406105--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
BUILDINGS
COMPUTERIZED SIMULATION
FOUNDATIONS
HEAT TRANSFER
HOURLY VARIATIONS
SEASONAL VARIATIONS