Adopting the traditional mixture ventilation, it is difficult to improve the indoor air quality due to the limit of the fresh breeze's mass flow, unless we consume more energy.
采用传统的混合式通风形式，由于新风风量的限制，在不提高能耗的条件下，很难提高室内的空气品质。
In view of the condensation problem of the system, presents the concept of moisture removal ability of unit mass of fresh air.
针对该系统的结露问题，提出了单位质量新风量除湿能力的概念。
Results show that the EGR rate can be effectively regulated by adjusting VNT vane position while still ensuring sufficient fresh intake air mass flow.
结果表明，通过调节VNT开度可以有效控制EGR率，并能保证较充足的新鲜空气量。
When calculating the amount of fresh air required to dilute smog, mass or volume concentration is introduced into the formula to replace the old smog concentration;
依据稀释烟雾计算隧道需风量时，在公式中应引入烟雾的质量浓度或烟雾的体积浓度，并用其替代公式中的一般烟雾浓度；
When calculating the amount of fresh air required to dilute smog, mass or volume concentration is introduced into the formula to replace the old smog concentration;
依据稀释烟雾计算隧道需风量时，在公式中应引入烟雾的质量浓度或烟雾的体积浓度，并用其替代公式中的一般烟雾浓度；
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