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https://hdl.handle.net/11681/5877| Title: | Cooling of an undersnow camp |
| Authors: | Yen, Yin-Chao Bender, James A. (James Arthur), 1923- |
| Keywords: | Underground construction Snow Cooling Arctic regions Cold weather construction Greenland Camp Century, Greenland EPOLAR |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 95. |
| Description: | Research Report Summary: An investigation was conducted at Camp Century, Greenland, to study the feasibility of using air wells to cool undersnow structures in the arctic during the summer months. From results obtained during the summers of 1959,and 1960 and late November, 1960, it was found that the air well is a practical and effective means of providing a -20°C air supply at volumetric flow rates of 1200 to 1700 ft^3/min. The extent and rate of warming of the snow beneath the trench floor by heat exchange between the air and the snow foundation was found to depend upon trench air temperature, fan capacity, fan arrangement, and casing length. For example, in a well cased to a depth of 17. 5 ft and equipped with a 5 hp fan drawing in air at a rate of 1700 ft^3/min, the maximum warming was found to be 12.5°C during a 42-day period. Snow temperature differences of about 7°C were found between similar trenches with and without a fan installation. The minimum permissible distance between two adjacent fans to eliminate, overlap in warming up the snow foundation is approximately 80 ft. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/5877 |
| Appears in Collections: | Research Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| CRREL-Research-Report-95.pdf | 973.55 kB | Adobe PDF |  View/Open |