INFLUENCE OF ENVELOPE AIRTIGHTNESS ON RESIDENTIAL INDOOR THERMAL ENVIRONMENT : Laboratory experiments on winter indoor thermal environment : with exhaust-only ventilation system operating

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  • 住宅の気密性能による室内温熱環境の差異 : 排気セントラル換気システム動作時における暖房期の室内温熱環境に関する実験
  • ジュウタク ノ キミツ セイノウ ニ ヨル シツナイ オンネツ カンキョウ ノ サイ ハイキ セントラル カンキ システム ドウサジ ニ オケル ダンボウキ ノ シツナイ オンネツ カンキョウ ニ カンスル ジッケン

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This research aims at clarifying the relationship between air leakage through the building envelope and indoor thermal environment in winter. Laboratory experiments were carried out by using a full-scale research house, which is built in a climatic chamber, and in which an exhaust-only ventilation system was emulated. The influence of the amount of cracks on the indoor thermal environment was quantified. On the first floor, the temperature gradient becomes larger, especially within the space lower than 1,300 mm above the floor. On the second floor, the effect of the air leakage is not so clear as on the first floor.

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