The steady-state performance of a solar still

Clark, Jim A.

doi:10.1016/0038-092x(90)90025-8

Cited by 112 publications

(24 citation statements)

References 9 publications

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“…In this regard, many researchers (Chaibi 1) , Clark 2) , Cooper 3) , Dunkle 4) , Hongfei et al 5) , Malik et al 6) , Shawaqfeh and Farid 7) ) have mainly conducted experimental and theoretical studies on conventional basin type still rather than other types such as tubular still. They also proposed a numerous heat and mass transfer correlations in terms of the temperature and vapor pressure or density on saline water surface and still over, neglecting the existence of intermediate medium between the two, i.e., humid air.…”

Section: Introductionmentioning

confidence: 99%

Production Analysis of a Tubular Solar Still

Islam

Fukuhara

2007

JSCE JOURNAL OF HYDRAULIC, COASTAL AND ENVIRONMENTAL ENGINEERIN

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In this study, attempts were made to provide a group of complete heat and mass transfer correlations, and to propose a new heat and mass transfer model for a Tubular Solar Still (TSS) by taking account of thermal properties of the humid air inside the still. We developed a new experimental technique for directly measuring the evaporation rate from the saline water surface in the TSS and evaluated the evaporative mass transfer coefficient. Indoor experiments were conducted to investigate the production performance and the heat and mass transfer coefficients of the TSS. It was found that i) the heat and mass transfer coefficients, h cha , h cw , h cdha , h ew can be expressed as functions of the temperature difference between the saline water and the cover, and ii) the conventional formula available for a basin type still overestimates the convective heat transfer coefficient, h cw for the TSS. Furthermore, in this study, the long-wave radiation interaction between the water surface and the tubular cover was shown theoretically.We also proposed a new heat and mass transfer model of TSS. The mass balance of water vapor inside the still was formulized for the first time. The proposed model was successful in the calculation of humid air properties (temperature, vapor density and relative humidity) and condensation flux on the tubular cover inner surface besides the saline water temperature, tubular cover temperature, trough temperature and evaporation flux. The validity of the model was evaluated from the comparison with field experiments in Fukui, Japan and in Hamuraniyah, UAE. It was seen that the calculated results also had a good agreement with the field data.

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Section: Introductionmentioning

confidence: 99%

Production Analysis of a Tubular Solar Still

Islam

Fukuhara

2007

JSCE JOURNAL OF HYDRAULIC, COASTAL AND ENVIRONMENTAL ENGINEERIN

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“…As a result, the availability of safe drinking water has become a main problem for the communities who live in remote and hard-to-reach areas. To address this problem, researchers have been investigating since long and have proposed several sustainable and nonconventional technologies which include but not limited to rainwater harvesting [2][3][4] and solar distillation [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Operational Parameters on Low-cost Single-basin Solar Still in Jessore, Bangladesh

et al. 2017

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Keeping in mind the growing concern of sustainability, the present study aims to develop a hands-on technique for potable water production by using a portable single-basin solar still, which is constructed with low-cost, locally available and lightweight materials. The performance of single-basin solar still were investigated using different essential operational variables, which include weather condition, water salinity, brine water depth, and addition of glass marbles as energy absorbing material. Ambient weather conditions were found to have direct effect on the productivity of the still. The solar still productivity increased by 29% when a layer of glass marbles was used. The study also showed that the daily water production increased with the decrease in the initial depth of brine water. Estimating a useful life of 4 years of the solar still, an average cost of produced potable water was defined to be BDT 0.35 per lit. In addition, some important water quality parameters were tested and compared with drinking water standard values. The obtained values were found to be in line with the drinking water standards of WHO.

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“…A complete numerical analysis on TSS has been presented by Ahsan & Fukuhara, 2008;Ahsan, 2009;Ahsan & Fukuhara, 2009;Ahsan & Fukuhara, 2010a, 2010b. Many researchers (Chaibi, 2000;Clark, 1990;Cooper, 1969;Dunkle, 1961;Hongfei et al, 2002;Malik et al, 1982;Shawaqfeh & Farid, 1995) have focused their research on conventional basin type stills rather than other types such as tubular still. Most of the heat and mass transfer models of the solar still have been described using temperature and vapor pressure on the water surface and still cover, without noting the presence of intermediate medium, i.e.…”

Section: Introductionmentioning

confidence: 99%