摘要
从能源危机和建筑能耗问题出发,设计一种太阳能诱导联合风机的空调系统。以兰州二层别墅为例,在南外墙和南向屋顶设置竖直和沿屋顶倾斜的串联太阳能烟囱,在一二层地板下、南北向铺设风道,构成通风系统。以太阳能烟囱联合风机作为驱动力,利用喷雾加湿冷却机理,采用CFD方法对这种空调的性能进行了研究,结果表明,随着入口风速的升高,风道入口的空气温度发生波动变化,房间地板表面温度呈现整体下降趋势;对应不同的风速,喷嘴数目的选取具有最大值;在入口风速为7 m/s时,本制冷方法系统COP值为6.7。研究结果对太阳能建筑的设计和施工有一定指导意义。
From the problems of energy crisis and building consumption,an air-conditioning system by solar-induced and fans-forced ventilation was designed.Taking a two-segment in Lanzhou as an example,a chimney consisting of an inclined section on the roof and a vertical section near the south wall was set up in this paper.The North-South air duct was laid under the first and second floor,and a full ventilation system was built.With solar chimney and fans as the driving force and spraying humidification and cooling as the mechnism,the CFD technique was used to research the performance of air-conditioning.It is shown that,with the increased velocity of wind from the inlet,the inlet temperature fluctuated and the surface temperature of rooms falls downward;the maximum number of the nozzles could be chosen for different velocity;The COP is 6.7 under the condition of 7 m/s inlet air velocity,so a certain energy saving effect could be obtained.The design and construction of the solar building could be guided by the results to a certain extent.
出处
《青岛大学学报（工程技术版）》
CAS
2010年第2期77-83,共7页
Journal of Qingdao University(Engineering & Technology Edition)
基金
山东省教育厅资助项目(J07YI04)
关键词
喷雾加湿冷却
太阳能烟囱
空调
spraying humidification and cooling
solar chimney
air-conditioning
