An experimental wick-type solar still system: Design and construction

被引:126
作者
Mahdi, J. T. [2 ]
Smith, B. E. [3 ]
Sharif, A. O. [1 ]
机构
[1] Univ Surrey, Ctr Osmosis Res & Applicat, Chem & Proc Engn Dept, Fac Engn & Phys Sci, Guildford GU2 XH, Surrey, England
[2] Kerbala Univ, Dept Phys, Coll Sci, Kerbala, Iraq
[3] Brunel Univ, Dept Mech Engn, Uxbridge UB8 3PH, Middx, England
关键词
Wick-type solar still; Solar desalination; Experimental study; Solar still efficiency; PERFORMANCE;
D O I
10.1016/j.desal.2010.09.032
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A tilted wick-type solar still was designed and constructed. Its practical aspects and performance are presented. Charcoal cloth was used as an absorber/evaporator material and for saline water transport. The distillation system consists of five main parts: (1) the still, (2) main reservoir, (3) constant head device, (4) distillate bottle, and (5) brine reservoir. Indoor and outdoor experimental testings were carried out to investigate the effect of input water flow rate and salinity on the still productivity together with the variation of the solar still efficiency with absorber temperature. The representative daily efficiency of the still was about 53% on clear days in summer. It has been concluded that, the charcoal cloth is a good material for use as an absorber/evaporator and also as a water transport medium. Increase of the input water mass flow rate leads to a reduction in the efficiency of the wick-type solar still. The still efficiency decreased linearly with increase of salinity of the input saline water e.g. it decreased, by indoor testing, from 37.7% to 20% as the NaCl salt concentration increased from 0% to 10% by weight. (c) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:233 / 238
页数:6
相关论文
共 27 条
[1]   CHEAP METHOD OF IMPROVING THE PERFORMANCE OF ROOF TYPE SOLAR-STILLS [J].
AKINSETE, VA ;
DURU, CU .
SOLAR ENERGY, 1979, 23 (03) :271-272
[2]   COMPARISON OF TRANSIENT PERFORMANCE PREDICTIONS OF A SOLAR-OPERATED DIFFUSION-TYPE STILL WITH A ROOF-TYPE STILL [J].
ELSAYED, MM .
JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, 1983, 105 (01) :23-28
[3]  
FREEMAN JJ, 1986, P 4 INT CARB C BAD B, P321
[4]  
Garg H.P., 1991, 1 EXP S NEW REN EN E, P1
[5]  
HITCHCOCK SJ, 1983, J CHEM TECH BIOT A, V33, P157
[6]   Performance of floating cum tilted-wick type solar still with the effect of water flowing over the glass cover [J].
Janarthanan, B ;
Chandrasekaran, J ;
Kumar, S .
DESALINATION, 2006, 190 (1-3) :51-62
[7]   Evaporative heat loss and heat transfer for open- and closed-cycle systems of a floating tilted wick solar still [J].
Janarthanan, B ;
Chandrasekaran, J ;
Kumar, S .
DESALINATION, 2005, 180 (1-3) :291-305
[8]   Solar stills: A review [J].
Kaushal, Aayush ;
Varun .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2010, 14 (01) :446-453
[9]  
Lof G.O.G., 1980, PRINCIPLES DESALIN B, P679723
[10]  
Mahdi J. T., 1990, Energy and the Environment. Into the 1990s. Proceedings of the 1st World Renewable Energy Congress, P1329