Passive Systems for Solar Heating and Cooling : Part 2-Evaluation of Performance of the Double Skin

DOI Web Site 1 Citations

Bibliographic Information

Other Title
  • 太陽熱のパッシブ利用に関する研究 : 第2報-ダブルスキンの性能評価
  • 太陽熱のパッシブ利用に関する研究-2-ダブルスキンの性能評価
  • タイヨウ ネツ ノ パッシブ リヨウ ニ カンスル ケンキュウ 2 ダブル ス

Search this article

Description

The Double Skin, which is a glass-covered space similar to a greenhouse is provided on the south side of an office building, Ohbayashi-gumi Super Energy Conservation Building. The Double Skin reflects she sun and releases heated air by natural ventilation in summer, and works as a solar collector in winter. This paper describes the evaluation of the performance of the Double Skin in the summer and the winter mode. In the summer mode, the air temperature in the Double Skin is only 3〜4℃ higher than the outside ambient air temperature. The air in the Double Skin is changed about 50〜100 times an hour by natural ventilation on a fine and calm day. The thermal structure in the Double Skin is that of 50% of incident solar energy reflected, 33% released by ventilation, and the remainder penetrating inro the room as cooling load. In the winter mode, the fresh air taken into the air handling units is heated by solar energy passing through the Double Skin. Efficiency of solar collection to the insolation is about 16% and the outlet air temperature is between 27 and 32℃. The Double Skin collects solar energy of 500kcal/m^2・d on a fine day in the winter. Energy saving performance concerning heating and cooling load by the Double Skin is 22% in the summer mode and 24% in the winter mode. The Double Skin is verified to be an effective energy saving system against the cooling and heating load through a year.

Journal

Citations (1)*help

See more

Details 詳細情報について

Report a problem

Back to top