夏热冬冷地区太阳能烟囱冬季供暖的性能研究  

Research on the Performance of Solar Chimney for Winter Heating in Hot Summer and Cold Winter Zone

作　　者：王素云[1] 宣永梅[1] 

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《绿色科技》2016年第2期111-114,共4页Journal of Green Science and Technology

摘　　要：介绍了太阳能烟囱在通风和供暖两种工况下的系统原理及流程,分析了太阳能烟囱用于夏热冬冷地区冬季采暖的两种运行模式特点及性能,计算结果表明:太阳能烟囱通风量随太阳辐射强度、烟囱高度及烟囱宽度的增加而增加。当室外温度相同,室内温度低于室外温度时,室内空气循环系统的通风量比全新风系统的通风量大;室内温度高于室外温度时,室内空气循环系统的通风量比全新风系统的通风量小。室内空气循环系统空气获得的热量比新风系统大,更容易满足室内热舒适需求。在太阳辐射强度为200W/m2时,全新风系统和室内空气循环系统得到的热量分别能达到室内热负荷的76.6%、94.2%。在太阳辐射强度为300W/m2、400W/m2时,可满足室内热负荷需求。The article introduces the system theoryand process of solar chimney in two kinds of conditions, namely ventilation and heating. The article focuses on the analysis of the characteristics and performance of two kindtion of operating mode for heating in the area whose summer is hot and winter is cold, The results show thatthe ventilation rate is increasing with the increase of the solar radiation and solar chimney＇s width and height. When the outdoor temperature is the same and the indoor temperature is lower than the outdoor＇s,the ventilation rate of the indoor air circulation system is higher than that of the all fresh air system;when the indoor temperature is higher than the outdoor＇s, the ventilation rate of the indoor air circulation system is lower thanthat of the all fresh air system. The heat from the indoor air circulation system is largerthan the heat from the all fresh air system, which is easier for the indoor air circulation system to meet the demand of the indoor thermal comfort. Whenthe solar intensity is 200 w/m^2 , the heat can achieve 76.6% and 94.2% of the indoor heat load by the all fresh air system and the indoor air circulation system. Whenthe solar intensity is 300 w/m^2 and 400 w/m^2 ,the two systems can meet the demand of indoor heat load.

关 键 词：太阳能烟囱 供暖 全新风系统 通风量 

分 类 号：X83[环境科学与工程—环境工程]