太阳能烟囱对海水蒸发强化效果的研究  

ADVANCED EVAPORATION PERFORMANCE OF SEAWATER UNDER A SOLAR CHIMNEY

作　　者：朱丽[1] 王一平[2] 胡彤宇[2] 杨智勇[2] 

机构地区：[1]天津大学建筑学院,天津300072 [2]天津大学化工学院,天津300072

出　　处：《太阳能学报》2008年第5期592-596,共5页Acta Energiae Solaris Sinica

摘　　要：针对自然水体蒸发和太阳能烟囱强化蒸发系统分别建立了理论模型和对比实验装置,考察了具体的强化效果。研究结果表明:由于集热棚和烟囱的存在,自然蒸发和强化蒸发系统的温度变化与分布不同,水温分别升高5℃以下和约15℃,多孔材料则产生相反的影响趋势;太阳能烟囱强化水分蒸发的效果是显著的,如果考虑到降雨的影响,加人多孔材料后系统的蒸发量仍最大;理论模型能较好地预测实验结果并可给出优化依据。Theoretical models and experimental equipment of natural evaporation systems and solar advanced systems were established respectively. The results show that the solar collector and chimney cause temperature difference and different distribution in the two kinds of systems. One has the temperature difference of 5 ℃, while the advanced system has the number of 15, and addition of porous materials makes for adverse tendency. The result of evaporation enhancement is obvious, the evaporation amount is still the largest when rainfall considered. The theoretical models can predict the data suitable for experimental results, and optimization can be made.

关 键 词：太阳能烟囱 强化蒸发 日晒法 能量平衡模型 

分 类 号：TK511[动力工程及工程热物理—热能工程]