Conduction Phase Change Beneath Insulated Heated or Cooled Structures.

The problem of thawing beneath heated structures on permafrost (or cooled structures in non-permafrost zones) must be addressed if safe engineering designs are to be conceived. In general, there are no exact solutions to the problem of conduction heat transfer with phase change for practical geometr...

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Bibliographic Details
Main Author: Lunardini,Virgil J
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Format: Text
Language:English
Published: 1982
Subjects:
Air Condition
Heating
Lighting & Ventilating
Thermodynamics
*Conduction(Heat transfer)
*Phase transformations
Structures
Buildings
Tanks(Containers)
Pipes
Buried objects
Thermal insulation
Permafrost
Melting
Steady state
PE61101A
AS91D
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA119595
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA119595
Description
Summary:The problem of thawing beneath heated structures on permafrost (or cooled structures in non-permafrost zones) must be addressed if safe engineering designs are to be conceived. In general, there are no exact solutions to the problem of conduction heat transfer with phase change for practical geometries. The quasi-steady approximation is used here to solve the conductive heat transfer problem with phase change for insulated geometries including infinite strips, rectangular buildings, circular storage tanks, and buried pipes. Analytical solutions are presented and graphed for a range of parameters of practical importance. (Author)

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