Energy-saving potential of upper-opening in large space building

The Stratified air-conditioning coupled with the natural ventilation is often used in large space buildings. It is an effective technique that how to utilize the natural ventilation to reduce the energy consumption. The energy-saving potential of the: natural ventilation in large space buildings is confirmed by using the connection of the air-conditioning opening and closing time and several atmospheric climatic parameters. The paper is focused on the methods of the efficient utilization of the upper openings in large space buildings and the abundant improvement of the energy-saving potential of the natural ventilation. It will promote the progress in the research of the thermal environment in large space buildings.