無雪道路の熱設計に関する研究

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  • Thermal design of snow-melt road, utilizing short-term thermal energy storage under the road.
  • ム セツ ドウロ ノ ネツ セッケイ ニ カンスル ケンキュウ

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A theoretical analysis of a snow-melt road has been performed using a method of imaging line sources. The results showed that: (1) The snow-melt road proposed in this report is assumed to be a uniform concrete road which has a deep heat storage zone 2.9m under the road. (2) The heat loss through the road shoulder can be eliminated by a thermal insulator buried in the shoulder 50cm deep. (3) The power of the proposed type of heat storage is far superior to the standard one. Over 5 days, the surface heat flux of this road is larger than the standard one. (4) The optimal relation between the pitch, the depth of the buried heat transfer pipes and the temperature of water used are shown in the figures. A thermal design process is proposed.

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