学术探索
学术期刊
新闻热点
数据分析
智能评审

EFFECT OF ADDING A PASSIVE CONDENSER ON SOLAR-STILL PERFORMANCE

被引：55
作者：
FATH, HES
ELSHERBINY, SM
机构：
[1] Faculty of Engineering, Alexandria University, Alexandria
来源：
ENERGY CONVERSION AND MANAGEMENT | 1993年 / 34卷 / 01期
关键词：
D O I：
10.1016/0196-8904(93)90008-X
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A theoretical and experimental study was conducted to investigate the effect of adding a passive condenser on the performance of the single slope, basin type solar still. A theoretical model based on the Dunkle (Int. Devs Heat Transfer 5, 895 (1969); Ref. [1]) mass transfer (evaporation) rate was developed. The model assumes that the transfer of water vapour from the still to the condenser is due to one or more of the following mass transfer modes: (i) diffusion, (ii) purging, and (iii) natural circulation. The theoretical results indicate that the diffusion contribution is relatively small. The contribution through purging represents the fraction [condenser volume/(condenser volume + still volume)] of the still yield. About 75% of the still yield is contributed through natural circulation. An experimental study that simulates the purging mass transfer mode was investigated. The experimental results show good agreement with the theoretical predictions and an increase of 50% in the still efficiency.
引用
收藏
页码：63 / 72
页数：10
相关论文
共 5 条
[1]  
Dunkle, Int. Devs Heat Transfer, 5, (1969)
[2]  
Yeh, Ten, Chen, Energy, 10, (1985)
[3]  
Yeh, Chen, Energy, 10, (1985)
[4]  
Kiatsiriroat, Bhattacharya, Wibulswas, Energy, 11, (1986)
[5]  
Abdel Salam, Helwa, Mohamed, Shinkar, Effect of cover slope and inside air volume on the performance of solar stills, Solar Energy Prospects in the Arab World, pp. 293-297, (1986)
1