096-住宅微正压通风冬季运行效果模拟研究.pdfVIP

住宅微正压通风冬季运行效果模拟研究 1 2 2 2 1 2 刘琳 ，曲凯阳 ，刘月莉 ，袁涛 ，刘靖 ，陈海波 （1. 河南理工大学，河南焦作 454000；2.中国建筑科学研究院有限公司，北京 100013） 摘要： 随着人们生活水平的提高和住宅节能技术的广泛推行，人们对于建筑室内通风 方式和效果的要求越来越高，而小户型住房由于其面积较小、平面布局不利于通风换气的原 因，急需一种合理的通风方式以获得最佳的通风效果。文章以北京某典型小户型住房为研究 对象，选用窗式通风器进行通风换气，利用 CFD 数值分析模拟软件对通风换气效果进行分析。 研究了 3 种不同工况下的温度场、速度场、CO2浓度场和空气龄，结果表明机械式窗式通风 器能够改善经济型住房的通风效果，此结果可为经济型住房相关的建筑节能、室内热环境及 空气品质的改善提供参考数据。 关键词：经济性住房 微正压通风 机械式窗式通风器 CFD 数值模拟 空气品质 Simulation study on the operating effect of micro positive pressure ventilation in residential buildings in winter Abstract: With the improvement of peoples living standards and the wide application of energy saving technology in the house, People are getting more and more demanding for the way and effect of indoor ventilation. And the small type of housing, because of its small area, flat layout is not conducive to ventilation and ventilation. A reasonable ventilation method is urgently needed to obtain the best ventilation effect. The article takes a typical small house in Beijing as the research object. The window ventilation for ventilation, The ventilation effect of ventilation was analyzed by using CFD numerical simulation software. The temperature field, velocity field, CO2 concentration field and air age are studied under 3 different operating conditions. The results show that the effect of mechanical ventilation window ventilator can improve the affordable housing, The results can provide reference data for energy saving, indoor thermal environment and air quality improvement related to economic housing. Keywords: Economic housing Micro positive pressure ventilation CFD numerical simulation Air quality 0 引言 随着社会的发展与人们生活水平的不断提高，室内空气品质与建筑节能已经引起了政府 和广大科研人员的重视。室内空气品质对人的健康和舒适至关重要，为保证室内空气品质必 须有通风措施。尤其在空间较小的室内，不仅要追求美观和舒适，更要追求健康。而只有保 证了整个室内环境的空气清洁，才能做到真正的环保和健康[1]。冬季，由于室内外温差过大， 大部分家庭会采取闭窗措施以维持