建筑一体化太阳能烟囱的通风性能研究  

RESEARCH ON VENTILATION PERFORMANCE OF A SERIES SOLAR CHIMNEY INTEGRATED WITH A BUILDING

作　　者：杨启容[1] 杜威[1] 张金翠[1] 

机构地区：[1]青岛大学机电工程学院,266071

出　　处：《太阳能学报》2010年第7期873-878,共6页Acta Energiae Solaris Sinica

基　　金：山东省教育厅资助项目(J07Y104)

摘　　要：针对广州地区的二层别墅,在其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,并对其通风性能进行了研究。就烟囱的总长和宽度、二层入口倾斜角度及倾斜段与竖直段长度比例等几何因素对其通风性能的影响进行了模拟计算。计算显示,随着烟囱长度的增加其通风性能随之增强;随着太阳能烟囱宽度的增加,烟囱流量先增大后减小,存在一个通风的最优长宽比,约为12:1;二层入口向下倾斜时,随着角度的增大,烟囱流量先增大后减小,最优倾角为4°;总长固定时,倾斜段与竖直段长度比例同样影响烟囱流量,按照建筑规范,建筑层高取规范最大值时烟囱流量最大。A series solar chimney, which is consisted of one inclined section on the roof and a vertical section besides the south wall, was researched in a general two-floor house. Simulation was finished in the way of performances of chimney＇ s ventilation influenced by its total length and width, inclined angle of two-layer inlet, length proportion of vertical and in- clined section. Results showed that the performance of ventilation gets stronger when the total length gets longer and the mass flow rate increases at first and then reduces when the width increases, so there is one optimum ratio of length and width which is about 12：1 for ventilation; The mass flow rate increases at first and then reduces with the angle＇s increas- ing when the two-layer inlet is inclined downwards and the optimum angle is 4 degree; When the total length is fixed, the mass flow rate is influenced by the length proportion of vertical and inclined section too, and according to the standard of building height, the mass flow rate reached its peak if the longest vertical length is chosen. It may provide theoretical ref- erence for practical solar building design.

关 键 词：串联太阳能烟囱 通风 建筑一体化 

分 类 号：TK511.2[动力工程及工程热物理—热能工程]