Frost and ice formation in the air convection pile permafrost protection device

Journal Article · Wed Sep 01 04:00:00 EDT 1982 · J. Energy Resour. Technol.; (United States)

DOI:https://doi.org/10.1115/1.3230403· OSTI ID:6214325

Reid, R L; Hudgins, E H

Experimental studies on frost and ice growth under simulated summer conditions were performed on a 3.0-m (10-ft) model of an air convection pile. The air convection pile is a thermosyphon-type permafrost protection device which has been considered for use in arctic construction projects. The device consists of an outer tube, usually 45.75 cm (18 in.) in diameter, extending 3.05 to 18.3 m (10 to 60 ft) into the permafrost. This outer tube contains a shorter concentric 25.4-cm- (10in.) dia inner tube. Data was taken for typical arctic temperatures and humidities and for simulated above-ground heights of 0.153, 1.373, and 2.88 m (0.5, 4.5, and 7.5 ft). The results have shown that the ice growth is governed by the concentration gradient in the annulus of the pile.

• Research Organization: Mechanical and Aerospace Engineering Dept., The Univ. of Tennessee, Knoxville, TN 37916
• OSTI ID: 6214325
• Journal Information: J. Energy Resour. Technol.; (United States), Journal Name: J. Energy Resour. Technol.; (United States) Vol. 104:3; ISSN JERTD
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
AIR FLOW
ANALOG SYSTEMS
ARCTIC REGIONS
BENCH-SCALE EXPERIMENTS
CONVECTION
ENERGY TRANSFER
EQUIPMENT PROTECTION DEVICES
FLUID FLOW
FOUNDATIONS
FUNCTIONAL MODELS
GAS FLOW
HEAT TRANSFER
ICE
MASS TRANSFER
MECHANICAL STRUCTURES
PERMAFROST
POLAR REGIONS
SEASONAL VARIATIONS
SIMULATORS
SUPPORTS
THERMOSYPHON EFFECT
TUBES
VARIATIONS