Numerical estimation of thermal insulation performance of different coverage schemes at three places for snow storage
蓄雪三地不同覆盖方案保温性能数值估算
積雪のための3か所での異なる被覆スキームの断熱性能の数値推定
적설 저장을 위한 3개 장소에서 다양한 피복 계획의 단열 성능 수치 추정
Estimación numérica del rendimiento del aislamiento térmico de diferentes esquemas de cobertura en tres lugares para almacenamiento de nieve
Estimation numérique des performances d'isolation thermique de différents schémas de couverture à trois endroits pour le stockage de la neige
Численная оценка теплоизоляционных характеристик различных схем покрытия в трех местах хранения снега
Xing Wang 王兴 ¹ ², Da-He Qin 秦大河 ¹ ², Jia-Wen Ren 任贾文 ¹ ², Fei-Teng Wang 王飞腾 ¹
¹ State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
中国 兰州 中国科学院西北生态环境资源研究院 冰冻圈科学国家重点实验室
² University of Chinese Academy of Sciences, Beijing, 100049, China
中国 北京 中国科学院大学
Advances in Climate Change Research, 30 October 2021
Abstract
With increasing global warming, the skiing season is shortened to different degrees all over the world. As a crucial way to ensure the sustainable development of the ski industry, snow storage has been gradually studied and applied in Europe. Covering thermal insulation materials is a key engineering measure for the success of snow storage. This study used numerical methods rather than an experimental method to evaluate the thermal insulation performance of nine snow storage coverage schemes in Harbin, Beijing, and Altay, China.
We investigated the thermal insulation performance of nine snow storage coverage schemes (three natural materials and six artificial ones) using a solar radiation method and an implicit finite difference method. Sensitivity analyses were conducted, and the cost performance of schemes 5–9 were analyzed. Based on the cost and thermal insulation performance, we used schemes 4 (geotextile, straw bale), 5 (geotextile, extruded polystyrene foam), and 7 (geotextile, polyurethane foam) to evaluate the snow storage effects in Harbin, Beijing, and Altay. Results showed that among schemes 1–9, scheme 7 has the best thermal insulation performance. If natural materials are used, then scheme 3 gives the best thermal insulation performance. Among schemes 5–9, scheme 5 is the most economical.
The heat transfer in Beijing is higher than that in Harbin and Altay, while the latter two show similar heat transfers. The combination of meteorological conditions and coverage schemes influence the melting rate of snowpacks. The melting rate of snowpacks can be reduced with an optimized coverage scheme. The proposed methods can serve the selection of coverage schemes for snow storage.
