thermal pile
Link: http://w3id.org/permafrost/v/ipaglossary/t0362
Within: IPA Permafrost Glossary
Definition: A foundation pile on which natural convection or forced circulation cooling systems or devices have been installed to remove heat from the ground (see Figure 24).
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thermal pile
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pieu thermique fr |
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There are two basic types of thermal piles. Passive or natural convection systems use self-powered devices, commonly referred to as thermosyphons, or heat pipes, which operate only when air temperatures are lower than the ground temperature. Forced circulation refrigeration systems require external power and mechanical equipment to circulate refrigerants, such as antifreeze liquids, chilled gases or cool air, and may be operated throughout the year or only during the winter. Both types may be fastened to, or form part of, the pile, or, if the pile is a sealed unit (e.g., a steel pipe), the pile itself may serve as a heat-removal device as well as a structural unit. Thermal piles are used to decrease the time for and ensure freezeback of the slurry and ground around piles, to prevent or control long-term permafrost degradation, and to decrease the existing ground temperatures around piles, particularly in warm temperature permafrost areas.
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| dcterms:source |
https://doi.org/10.4224/20386561
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