…The minimum or recommended ventilation volume required to maintain air cleanliness above a certain limit is called the required ventilation volume, and is determined based on factors such as indoor and outdoor air conditions, the amount of indoor pollution, and the presence or absence of heating and cooling air conditioning. The value obtained by dividing the ventilation air volume per hour by the room volume is called the ventilation rate, and is used to express the degree of ventilation. For example, a ventilation rate of 2 times/h means that the amount of outside air flowing in per hour is twice the room volume. … *Some of the terms mentioned in the "ventilation rate" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…空気清浄度をある限度以上に保つための換気量の最小値または推奨値を必要換気量といい,室内外空気の条件,室内の汚染発生量,暖冷房空気調和の有無などによって決められる。1時間当りの換気風量を室容積で除した値を換気回数といい,換気の程度を表すために用いられる。例えば,換気回数2回/hとは,1時間に流入する外気の量が室容積の2倍であることをいう。… ※「換気回数」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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