TY - GEN
T1 - Thermosyphon cooling of Chena Hot Springs Road
AU - Forsström, Anna
AU - Long, Erwin L.
AU - Zarling, John P.
AU - Knutsson, Sven
PY - 2002
Y1 - 2002
N2 - Thermosyphons have been used to maintain permafrost below structures for over forty years. The Chena Hot Springs Road Test Section became operational during the fall of 1998 and includes three test sections underlain with different types of thermosyphons plus a control section. The test section overlays high-moisture-content permafrost. After two seasons, the thaw depth decreased and the freezing depth increased in all sections, including the control. Pavement edge temperatures showed a decided cooling trend which was slight for the control, more pronounced for the UAF/CRREL units and AFI flat loop evaporator units, and highest for the AFI buried units section. The centerline thermal conditions relate to the condenser size, while the pavement edge or shoulder conditions relate to the type of installation. During the winter season, the AFI buried condenser thermosyphons show surface warming and sublimation of snow closer to that of the control section, while the other two test sections are colder at the surface during the winter season.
AB - Thermosyphons have been used to maintain permafrost below structures for over forty years. The Chena Hot Springs Road Test Section became operational during the fall of 1998 and includes three test sections underlain with different types of thermosyphons plus a control section. The test section overlays high-moisture-content permafrost. After two seasons, the thaw depth decreased and the freezing depth increased in all sections, including the control. Pavement edge temperatures showed a decided cooling trend which was slight for the control, more pronounced for the UAF/CRREL units and AFI flat loop evaporator units, and highest for the AFI buried units section. The centerline thermal conditions relate to the condenser size, while the pavement edge or shoulder conditions relate to the type of installation. During the winter season, the AFI buried condenser thermosyphons show surface warming and sublimation of snow closer to that of the control section, while the other two test sections are colder at the surface during the winter season.
UR - https://www.scopus.com/pages/publications/0036931724
U2 - 10.1061/40621(254)55
DO - 10.1061/40621(254)55
M3 - Conference contribution
AN - SCOPUS:0036931724
SN - 0784406219
SN - 9780784406212
T3 - Cold Regions Engineering Cold Regions Impacts on Transportation and Infrastructure: Proceedings of the Eleventh International Conference
SP - 645
EP - 655
BT - Cold Regions Engineering Cold Regions Impacts on Transportation and Infrastructure
A2 - Merrill, K.S.
PB - ASCE - American Society of Civil Engineers
T2 - Cold Regions Engineering Cold Regions Impacts on Transportation and Infrastructure: Proceedings of the Eleventh International Conference
Y2 - 20 May 2002 through 22 May 2002
ER -