ENHANCING OF SOLAR-STILL PRODUCTIVITY USING VACUUM TECHNOLOGY

被引：59

作者：

ALHUSSAINI, H

SMITH, IK

机构：

[1] Department of Mechanical Engineering and Aeronautics, City University, London, EC1V OHB England, Northampton Square

来源：

ENERGY CONVERSION AND MANAGEMENT | 1995年 / 36卷 / 11期

关键词：

SOLAR STILL; WATER PRODUCTIVITY; VACUUM;

D O I：

10.1016/0196-8904(95)00003-V

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this study, the effect of applying vacuum inside the solar still on its productivity is presented. The effect of vacuum inside the still is to avoid any heat transfer due to convection in the still. So, the heat loss from the water in an insulated still is due to evaporation and radiation only. Hence, the air mass transfer is not included in the analysis. In the presence of vacuum, the effect of the non-condensable gas, which reduces the rate of condensation, is also avoided. The results show that applying vacuum inside the solar still increases the water productivity about 100%, i.e. enhancing the efficiency about 100%. This can be considered as the maximum increase in the productivity of the still up to now.

引用

页码：1047 / 1051

页数：5

共 8 条

[1]

Ali, Proceedings of the North Sun 88 Conference, (1988)

[2]

Abbot, The Sun and the Welfare of Man, (1934)

[3]

Dunkle, International Developments in Heat Transfer, A.S.M.E., pp. 895-902, (1961)

[4]

Malik, Et al., Solar Distillation, (1982)

[5]

Roth, Vacuum Technology, (1978)

[6]

Duffie, Beckman, Solar Energy Thermal Processes, (1974)

[7]

Bloemer, Edlin, Eibling, Study and field evaluation of solar sea water still, Report No. 50, Office of Saline Water, (1961)

[8]

Othmer, The Condensation of Steam, Industrial & Engineering Chemistry, 21, pp. 576-583, (1929)

← 1 →