宣永梅,马柱柱,黄翔
XUAN Yong-mei,MA Zhu-zhu,HUANG Xiang

• 1:西安工程大学

摘要(Abstract)：

提出了太阳能烟囱复合蒸发冷却系统,对复合系统模型进行了理论分析及计算,得出通风量与烟囱高度、宽度及太阳辐射强度之间的关系。结果表明,太阳能烟囱的自然通风量随太阳能辐射强度及烟囱高度的增加而增加;在计算条件下,当宽度取1m时通风量取得最大值。在此基础上分析得到太阳辐射照度400W/m2、烟囱高度3m、宽度1m时,太阳能烟囱复合蒸发冷却系统应用于乌鲁木齐建筑时烟囱的理论通风量为0.21kg/s,该通风量基本满足乌鲁木齐夏季通风设计工况下,蒸发冷却降温时所需动力(0.23kg/s),且室内通风换气次数达到10次/h以上,是一种节能环保的自然通风降温技术。
A hybrid system of solar chimney and evaporative cooling was proposed.The model of this hybrid system was studied by theoritical analysis and calculation.The relationships between air flow rate with chimney height,width and solar radiation were obtained.The calculation results indicated that the air flow rate of solar chimney increases with solar radiation and chimney height.Under design conditions,the air flow rate of solar chimney reaches its maximum value at solar chimney width of 1m.When applied to actual buildings in Urumqi,the obtained air mass flow rate(0.21kg/s) of solar chimney under optimum conditions(at chimney height of 3m,width of 1m,solar radiation of 400W/m2) can approximately meet the ventilation requirements of evaporative cooling(0.23kg/s),and air changes more than 10 times per hour.The proposed hybrid system is an environmental friendly and energy efficient natural ventilation and free cooling technology.

关键词(KeyWords)： 自然通风;太阳能烟囱;蒸发冷却;自然冷却
natural ventilation;solar chimney;evaporative cooling;free cooling

Abstract:

Keywords:

基金项目(Foundation): 陕西省自然科学基金项目(2011JQ7021);; 陕西省教育厅专项科研计划项目(11JK0941)

作者(Author): 宣永梅,马柱柱,黄翔
XUAN Yong-mei,MA Zhu-zhu,HUANG Xiang

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