An Innovative Ice Cellar. Design for an ice cellar was developed by ANTHC’s Center for Climate and Health. Features of the design include an energy efficient thermostat controlled cooling system, solar and/or wind energy system, structural supports and ventilation for allowing exchange of cellar and outside air. This technology can be used to protect critical infrastructure from degradation during the summer months. If used correctly, it can eliminate the active layer, thus reducing infrastructure issues associated with freeze thaw cycles. When used as a protective mechanism for the degradation of permafrost, this emerging technology can be readily driven by solar processes. A solar driven power source works well for permafrost protection because the degradation generally occurs during the summer months when solar energy is abundant in the Arctic. One important consideration when using this type of solar driven cooling system is that it is imperative that the soil is maintained in the frozen state when the system is installed and operated. This is important because it takes about 100 times less energy to preserve soil in the frozen state (sensible heat) than it does to freeze back soil that has melted (latent heat). Actively freezing back soil requires a significant amount of energy that cannot be economically produced using solar driven technology. Although other power sources can be used to produce cooling, solar energy is the preferred alternative because it eliminates the need to burn fossil fuels, which would further exacerbate the climate change issue. ANTHC is currently testing this technology on a lift station located in permafrost soils in Old Kasigluk, Alaska. A cooling coil was installed beneath the wet well of the lift station, at the interface of the native permafrost soils and the fill material. The system is being monitored, and data are actively being collected on the performance of the system.
Tribe: Inupiat (Nuiqsut, Alaska); Alaska Native Tribal Health Consortium (ANTHC)
View Source Document: Climate Change in Nuiqsut, Alaska
Year: 2014
Topic:
Develop alternative methods for storage.
(view all topics in the plan)
Region: Alaska
