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。

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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。

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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。

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