English
Français
by
Fortier.D
Thermosyphons (Alaska)
October 28, 2014 in post by Fortier.D
Thermosyphons are closed-system heat extraction devices. Installed in the permafrost they contribute to cooling of the ground and maintaining the permafrost intact. Although thermosyphons are effective mitigation techniques, their cost currently limit the possibility to deploy them extensively along linear transportation infrastructure such as road but have been used with success to mitigate heat island under buildings over permafrost. Geocryolab is involved in testing the effectiveness of thermosyphons using high-resolution infra-red camera and ground temperature.
Thermosyphon installed in the muskeg at an experimental site of interior Alaska near Fairbanks (photo M. Kanevskiy, © Geocryolab)
Black and white image from FLIR infra-red camera showing thermosyphon temperature (15.9°F = -9°C) and air temperature (-40°F = -40°C) (photo M. Kanevskiy, © Geocryolab)
Infra-red thermal image of thermosyphons in the natural setting. The reddish color (warmer than surrounding terrain) indicates the thermosyphon is extracting heat from the permafrost (photo M. Kanevskiy, © Geocryolab).
Ce message est également disponible en : French
Thermosyphons (Alaska)
by
Geocryolab
is licensed under a
Creative Commons Attribution-NonCommercial 4.0 International License
.