Heat Transfer Characteristics of Melting and Refreezing a Drill Hole through an Ice Shelf in Antarctica

The heat transfer processes associated with melting and refreezing a drill hole 500 m in depth and 0.150 m in initial radius through an ice shelf were approximately analyzed. The results were expressed in graphical form showing the time available for experimentation under the hole as a function of h...

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Bibliographic Details
Main Authors: Yen,Yin-Chao, Tien,Chi
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1976
Subjects:
Snow
Ice and Permafrost
*ICE PENETRATION
*ICE OPENINGS
HEAT TRANSFER
FREEZING
HOLES(OPENINGS)
MELTING
ANTARCTIC REGIONS
DRILLING
DRILLS
Antarctic
Antarc*
Antarctica
Ice
Ice Shelf
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA026368
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA026368
Description
Summary:The heat transfer processes associated with melting and refreezing a drill hole 500 m in depth and 0.150 m in initial radius through an ice shelf were approximately analyzed. The results were expressed in graphical form showing the time available for experimentation under the hole as a function of heating duration and heating strength. It was found that the refreezing of the drill hole had a much slower rate than the melting of the hole. (Author)

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