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

Journal Article · Wed Sep 01 00:00:00 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), Vol. 104:3
• Country of Publication: United States
• Language: English

Related Subjects

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