集雪冷房システムにおける融雪量の算定

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タイトル別名
  • Estimation of melting snow stored for urban air conditioning system
  • シュウ ユキレイボウ システム ニ オケル ユウセツリョウ ノ サンテイ

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This paper aims at a practical method to estimate the melting of snow stored for cooling the buildings in urban areas during the summer. Snow or snow-water mixture were stored in several containers, thin resin or resin-lined steel vessels with the volume of 0.2 to 5.5m3, which were immersed in the ground. The amount of snow melted and the temperature distribution around the containers were measured and compared with the results of numerical calculations of transient heat conduction in the ground.<BR>In the case of snow and water mixture in the sealed container, the measured melting rates and ground temperatures agreed well with those calculated under the conditions of constant wall temperature and initial uniform ground temperature. This resulted to give an empirical relation between the rates of melting and the lapsed time, which is useful for the practical estimation. Rainfall, however, sometimes increased the melting at most by 30%, which was due to the additional heat transport carried by the underground water around the container. In the case of the container with a water drainage, the rate of melting was reduced by approximately 40% of that given by the empirical relation. This is due to the air gap formed between the stored snow and the wall of container.

収録刊行物

  • 雪氷

    雪氷 44 (3), 141-147, 1982

    公益社団法人 日本雪氷学会

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