Laboratory Investigation of Different Insulating Materials Used for Snow Storage
Publication: Journal of Cold Regions Engineering
Volume 33, Issue 4
Abstract
Storage of snow has become of increasing interest for the winter business industry. Covering a pile of snow with an insulating material protects the snow from heat transfer from the surroundings and reduces the melting. Storing snow enables ski resorts to set an opening date, and it can also be used to secure winter sports events that are dependent on snow. Cover materials that are commonly used as insulation are wood-based materials, such as sawdust, and textile materials and sheets. How efficiently a cover material functions as thermal insulation depends on the material characteristics and thickness of the insulating layer. In this study, results from a laboratory experiment are presented, which aimed at comparing different commonly used cover materials, as well as some other materials that have not previously been used as thermal insulation on snow. Different layer thicknesses were also investigated. The results show that the insulating capacity of sawdust is reduced with time. Despite degrading insulating properties with time, sawdust is still considered one of the best materials to use as insulation on snow, and it is also more efficient than the textile materials investigated in this study. Doubling the textile layers or adding a three-dimensional (3D) spacer textile, which implies adding a layer of air between the textile and the snow, reduces the snow melting. Water absorption, water transport, and evaporation of water affect the melting. In this work, evaporative cooling did not prove to reduce melting; therefore, it was not evident whether a textile material should be permeable. An interesting material used in the study was Quartzene, which absorbed all the melt water and protected the snow most efficiently of the materials tested.
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References
Aerogel. 2016. “Quartzene och Miljö.” Accessed March 20, 2016. https://www.aerogel.se/sv/quartzene-och-miljon/.
Breiling, M., and P. Charamza. 1999. “The impact of global warming on winter tourism and skiing: A regionalised model for Austrian snow conditions.” Reg. Environ. Change 1 (1): 4–14. https://doi.org/10.1007/s101130050003.
Geosyntia. 2015. “Effekter av nålefiltede geotekstiler: Piloteksperimenter med sikte på å redusere snø- og issmelting på Presena-breen (Trento, Italia).” Accessed May 1, 2015. https://geosyntia.no/wp-content/uploads/2015/05/Rapport-COVERICE.pdf.
Grünewald, T., F. Wolfsperger, and M. Lehning. 2018. “Snow farming: Conserving snow over the summer season.” Cryosphere 12 (1): 385–400. https://doi.org/10.51941tc-12-385-2018.
Lintzén, N. 2016. “Properties of snow with applications related to climate change and skiing.” Ph.D. thesis, Dept. of Civil, Environmental, and Natural Resources Engineering, Luleå Univ. of Technology.
Marty, C., S. Schlögl, M. Bavary, and M. Lehning. 2017. “How much can we save? Impact of different emission scenarios on future snow cover in the Alps.” In Vol. 11 of The cryosphere, 517–529. Göttingen, Germany: Copernicus Publications.
Nordell, B., and K. Skogsberg. 2007. “The Sundsvall snow storage: Six years of operation.” In Thermal energy storage for sustainable energy consumption, 349–366. Berlin: Springer.
Olefs, M., and A. Fischer. 2008. “Comparative study of technical measures to reduce snow and ice ablation in Alpine glacier ski resorts.” Cold Reg. Sci. Technol. 52 (3): 371–384. https://doi.org/10.1016/j.coldregions.2007.04.021.
Olefs, M., and M. Lehning. 2010. “Textile protection of snow and ice: Measured and simulated effects on the energy and mass balance.” Cold Reg. Sci. Technol. 62 (2–3): 126–141. https://doi.org/10.1016/j.coldregions.2010.03.011.
Schmucki, E., C. Marty, C. Fierz, R. Weinartner, and M. Lekning. 2017. “Impact of climate change in Switzerland on socioeconomic snow indices.” Theor. Appl. Climatol. 127 (3–4): 875–889. https://doi.org/10.1007/s00704-015-1676-7.
Skogsberg, K. 2005. “Seasonal snow storage for space and process cooling.” Ph.D. thesis, Dept. of Civil and Environmental Engineering, Luleå Univ. of Technology.
Skogsberg, K., and A. Lundberg. 2005. “Wood chips as thermal insulation of snow.” Cold Reg. Sci. Technol. 43 (3): 207–218. https://doi.org/10.1016/j.coldregions.2005.06.001.
Stieger, R. 2012. “Scenarios for skiing tourism in Austria: Integrating demographics with an analysis of climate change.” J. Sustainable Tourism 20 (6): 292–298. https://doi.org/10.1080/09669582.2012.680464.
Tidig och säker snö. 2007. Projekt Tidig och säker snö Slutrapport. Östersund, Sweden: Östersunds Kommun.
Wiberg, P., and P. J. Moreén. 1999. “Moisture flux determination in wood during drying above fibre saturation point using CT-scanning and digital image processing.” Holz Roh Werkstoff 57 (2): 137–144. https://doi.org/10.1007/s001070050029.
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©2019 American Society of Civil Engineers.
History
Received: Feb 6, 2018
Accepted: Mar 4, 2019
Published online: Aug 14, 2019
Published in print: Dec 1, 2019
Discussion open until: Jan 14, 2020
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