徽州民居自然通风优化设计方法

要徽州民居的天井在诸多方面对其室内环境起着调节作用。然而研究表明徽州民居内部存在通风不均匀的状况,徽州民居自身外墙开窗不足,缺乏风压通风是主要原因之一。采用CFD模拟的方式探索徽州民居自然通风优化设计方法,以期应用于新民居建设,实现低代价节能。研究发现竖长型天井综合效果最佳,迎风面略增加开口能显著降低总体空气龄,背风面开口能产生穿堂风,而其位置对于室内总体空气龄影响不大。

Optimization Method of Natural Ventilation in Huizhou Traditional Residence

The inner courtyard of Huizhou traditional residence plays an important role in adjusting the interior environment in several ways. Research shows that one of the major reasons of the bad-distributed ventilation inside the Huizhou traditional residence is deficiency of ventilation of wind pressure on account of the lack of windows on the walls. CFD simulation is used to explore the optimal solutions of the natural ventilation for modern residence in low cost energy conservation. The research turns out that vertical courtyard has the best effect synthetically. And add some openings would reduce the age of the air obviously. Also the opening in the back will lead to draft but the location of it has no influence to the age of the air.