Study of night ventilation effect

Abstract：First, the datum of foundation room temperature were calculated under the different condition.That is to say, model room was under the condition of different districts, different building structures and different air of change rates.Then, the paper compared and analyzed these datum to study night ventilation effect and presented the influence factors.Finally, some suggestion are put forward.

Keyword：ventilating;room-temperature;DESTⅡ;ventilation effect;