Evaluation of the thermal bridging effects on the thermal performance of slab-on-grade floor foundation
- Univ. of Colorado, Boulder, CO (United States). Joint Center for Energy Management
A steady-state solution is developed to determine the thermal interaction between a slab-on-grade floor and above-grade walls. In particular, the thermal bridging effects at the slab/wall joints are evaluated for various insulation configurations. Using a finite-difference numerical technique (FDM), the temperature field within the building envelope and the soil, the heat flux profiles along the foundation surfaces, and the total slab and wall heat losses are determined and analyzed for both interior and exterior insulation configurations. It was found that a significant thermal interaction exists between the slab-on-grade floor and the above-grade walls. In particular, it was found that adding thermal insulation to the slab or to the walls affects the thermal performance of both the slab and the walls.
- OSTI ID:
- 345260
- Report Number(s):
- CONF-9702141-; TRN: IM9922%%193
- Resource Relation:
- Conference: American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) winter meeting, Philadelphia, PA (United States), 24-28 Feb 1997; Other Information: PBD: 1997; Related Information: Is Part Of ASHRAE transactions: Technical and symposium papers, 1997. Volume 103, Part 1; PB: 1136 p.
- Country of Publication:
- United States
- Language:
- English
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