论文部分内容阅读
随着高气密性的低能和超低能耗耗建筑的发展,建筑新风的保障成为建筑领域的重点问题之一。目前有多种通风方式,不同的通风方式会产生不同的通风效果。为更好的保障室内空气品质,需要选择合适的通风方式。本研究以住宅通风为主,选取单一卧室对比分析了采用常规混合通风与往复式通风二者的通风效果。根据Fluent软件的模拟计算结果,在空间维度,往复式通风室内高污染物浓度区域面积较小;在时间维度上,往复式通风周期性变化使得高污染物浓度的维持时间较短。基于以上结果,本文得到了相对常规混合通风,往复式通风具有更好通风效果的结论。
With the development of high-density, low-energy and ultra-low-energy buildings, the protection of building fresh air has become one of the key issues in the construction field. There are a variety of ventilation methods, different ventilation will produce different ventilation. In order to better protect the indoor air quality, need to choose the appropriate ventilation. In this study, residential ventilation was the main method. The single bedroom was used to analyze the ventilation effect of both conventional mixed ventilation and reciprocating ventilation. According to the simulation results of Fluent software, in the space dimension, the area of high pollutant concentration in the reciprocating ventilation room is small; in the time dimension, the periodic change of the reciprocating ventilation makes the maintenance time of the high pollutant concentration shorter. Based on the above results, we conclude that the ventilation system has better ventilation than the conventional ventilation system.