PERFORMANCE OF HEAT PUMP CHILLED FOUNDATIONS
Standard domestic ground coupled heat pump technology has been applied to maintain frozen ground in and beneath insulated slab-on-grade foundations while simultaneously providing substantial heat for the building itself. Thermal and economic performance data are presented for the first year of opera...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.565.5689 http://pubs.aina.ucalgary.ca/cpc/cpc5-409.pdf |
| Summary: | Standard domestic ground coupled heat pump technology has been applied to maintain frozen ground in and beneath insulated slab-on-grade foundations while simultaneously providing substantial heat for the building itself. Thermal and economic performance data are presented for the first year of operation of two-350 m2 multi-purpose municipal garage buildings located on permafrost in the W o n. The two cases bracket the range of soil conditions, ground temperatures, operating conditions and logistic problems likely to be encountered in practice. The thermal regime within the foundations was simulated by a numerical model.and the results were used to suggest ways of improving the design. The ground coupled heat pump chilled foundation has the advantage, relative to the alternatives, of beiig less affected by external air temperatures. Initial construction is cheap while net operating costs for electic heat pumps range from negligible to reasonably acceptable. Diesel or natural gas driven heat pumps would further reduce operating costs. The paper also suggests additional possible applications of groundcoupled heat pumps to permafrost engineering. On a utilis6 la technologic d6jB mike des thermopompes domestiques dans le contexte des fondations du type dalle-sur-sol pour conserver le pergdliiol sous-jawnt dam un &at gel6 tout en produisant une quantiti? importante de chaleur pour le chauffage du bftiment lui-msme. On pr6sente des donnkes de performance thermique et Bconornique pour la prem&e annde d'ophation de deux bitiments municipaux polyvalents de |
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