Controlling the initiating time of ventilation facilities by spatial analytic method

Using the big data analysis and basic information from lecture Halls to predict air change rate

“…Lecture halls are mostly designed as enclosed spaces, and there are only two doors at front and rear to connect the outside. As mechanical ventilation introduces outdoor fresh air through fans [ [15] , [16] , [17] ], natural ventilation and mechanical ventilation can be used independently or mutually beget each other. When natural ventilation does not meet the standard, mechanical ventilation can be used to stabilize the ventilation effect.…”