Ventilation volume - Airflow

Japanese: 換気量 - かんきりょう
Ventilation volume - Airflow

...The purpose of ventilation is to improve such air conditions so that they are suitable for human activities and the preservation of buildings and goods.
[Ventilation volume]
The amount of outside air brought in is called the ventilation rate, and the more it is, the lower the level of pollution inside the room will be, and the closer it will be to the conditions of the outside air. However, just as a drafty room will not warm up no matter how much you heat it, when using heating/cooling or air conditioning, heat loss increases in proportion to the ventilation rate, resulting in extra energy consumption.

*Some of the terms mentioned in the description of "ventilation volume" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…このような空気環境を人間の活動や建物・物品の保存に適するように改善することが換気の目的である。
[換気量]
 外気の導入量を換気量といい,多ければ多いほど室内の汚染の程度は低くなり外気の状態に近くなる。しかし,隙間風の多い部屋でいくら暖房しても暖かくならないように,暖冷房や空気調和をしているときは換気量に比例して熱損失が増大し,余分なエネルギーを消費することになる。…

※「換気量」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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