11. Simulation and Optimization Study on Ventilation Performance of Roof-Covered Sunlight Rooms in Rural Houses in Northeast China

Optimizing the natural ventilation design of buildings plays an important role in improving indoor air quality and reducing building energy consumption. Taking the additional sunlight room of typical rural houses in Northeast China as the research object, a new model of roof-covered sunlight room is proposed, and the performance potential is compared and analyzed from three aspects: the technical performance implementation, the space utilization rate, and the expressive power of the image. Simulate and optimize the ventilation performance of roof-covered sunlight rooms by using Fluent ventilation simulation software. Research has found that roof-covered sunlight rooms have great performance potential. By optimizing the depth of the sunlight room, reasonably controlling the width and height of the ventilation ducts in the sunlight room, and increasing the area of the ventilation ducts, the average wind speed in the sunlight room can be effectively improved, and the internal air quality can be improved. It provides theoretical and technical guidance for the rationalization of the construction of the additional sunlight room in the northeast countryside.