THERMAL-ELECTRICAL, HIGH-EFFICIENCY SOLAR-STILLS

被引：18

作者：

NIJEGORODOV, N ^{[1
]}

JAIN, PK ^{[1
]}

CARLSSON, S ^{[1
]}

机构：

[1] MINIST MINERAL RESOURCES & WATER AFFAIRS,ENERGY UNIT,GABORONE,BOTSWANA

来源：

RENEWABLE ENERGY | 1994年 / 4卷 / 01期

关键词：

Solar stills - Thermal electrical water purification methods;

D O I：

10.1016/0960-1481(94)90074-4

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The paper describes two solar thermal-electrical methods to purify water by distillation. In the first method air saturated with water vapour is removed from a basin type still by using a low power exhaust fan, and is passed through a condenser where the latent heat of water vapour is used to pre-heat the mineralised water for the basin. This also results in lower temperature for the glazing and a faster rate of evaporation from the basin. The net effect is an increased thermal efficiency of the still, more than twice the thermal efficiency of the conventional still. In the second design a concentrator-collector is used to boil water in the absorber tube. A low power vacuum pump is employed to lower the boiling temperature of water by about 10-degrees-C. The yield of distillate from the still is nearly doubled.

引用

页码：123 / 127

页数：5