A portable single-basin solar still with an external reflecting booster and an outside condenser

Monowe, P.; Masale, M; Nijegorodov, N.; Vasilenko, V. F.

doi:10.1016/j.desal.2011.07.031

Cited by 59 publications

(16 citation statements)

References 18 publications

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“…The efficiency of solar still with external condenser increased by 14% in contrast to simple solar still 14 Monowe et al [26] Botswana Thermal-electrical solar still with an outside condenser When the exhaust fan was ON, the efficiency of the solar still increased to 68% 15 Javad Abolfazli Esfahani et al [27] Iron use of thermoelectric cooling inside a portable active solar still…”

Section: Discussion Of Resultsmentioning

confidence: 99%

Different parameters affecting the condensation rate on an active solar still—A review

Manokar¹,

Vimala

Winston³

et al. 2018

Env Prog and Sustain Energy

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Passive solar stills are used for solar distillation. But the yield of passive still is very low, and often fails to meet the demand. Water is one of the fundamental sources for the survival of mankind on the globe. As world having just a little measure of water assets for utilization purpose, individuals living in undeveloped countries and urban zones are getting affected by consuming dirty water that prompts water‐borne illness. Despite the fact that groundwater is accessible in little amount, it must be suitably treated before its utilization for domestic use. Salty water contains dissolved and undissolved substance, and henceforth, it is not advisable for family drinking purpose. To enhance the productivity of fresh water, several techniques were employed. Furthermore, increase in yield of fresh water depends on various environmental parameters and rate of condensation. In this article, a complete review of various methods employed to enhance the condensation rate on an active solar still has been presented. Solar still incorporated with the evacuated tube collectors (ETC) and thermo electric modules (TEM) increased the still effectiveness up to 68%. © 2018 American Institute of Chemical Engineers Environ Prog, 38: 286–296, 2019

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Section: Discussion Of Resultsmentioning

confidence: 99%

Different parameters affecting the condensation rate on an active solar still—A review

Manokar¹,

Vimala

Winston³

et al. 2018

Env Prog and Sustain Energy

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“…Recently, many studies on the effect of flat plate external reflectors on basin-type stills have been reported [24][25][26][27][28][29][30][31][32][33][34][35][36][37], although few reports had been presented before the year 2000 [38][39][40]. The results showed that an external reflector can increase the solar radiation absorbed on the basin liner as well as the distillate productivity of the still if the reflector angle is set properly.…”

Section: Introductionmentioning

confidence: 90%

Theoretical Analysis of the Effect of a Bottom Reflector on a Vertical Multiple-Effect Diffusion Solar Still Coupled with a Basin-Type Still

Tanaka

2013

Advances in Mechanical Engineering

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The effect of a flat plate bottom reflector on a vertical multiple-effect diffusion solar still coupled with a basin-type still is analyzed theoretically at 30 ∘ N latitude. The still has a right-angled triangular cross-section consisting of a horizontal basin liner, a sloping double glass cover, and the vertical multiple-effect diffusion still (multiple-effect section) at the vertical rear wall. A geometrical model was constructed to calculate the amount of solar radiation reflected by the reflector and absorbed on both the basin liner and the first partition of the multiple-effect section. The reflected radiation from the reflector can be a thermal input to the multipleeffect section both in cases where the reflected radiation is absorbed on the basin liner and on the first partition. It is predicted that the overall daily productivity of the still can be increased about 16%, 13%, and 29% on the spring and autumn equinoxes, the winter solstice, and the summer solstice, respectively, by adding the external reflector and setting the reflector inclination to the proper angle according to seasons.

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“…Starting with a basic unit comprising a black-coloured flat basin and a tilted glass cover, several improvisations have been made on the still over the years to raise the output. These include a range of passive and active methods [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Although not specified explicitly, most of the solar stills can desalinate sea water.…”

Section: Introductionmentioning

confidence: 98%

Practical and sustainable household seawater desalination using an improved solar still

Maiti

Bhatt

Ghosh

2016

Desalination and Water Treatment

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Conventional seawater desalination plants have so far not been scaled down to household level, at least not in a practical or affordable manner. Solar still technology can fill this void. Studies were conducted with five step-solar stills (1.01 m 2 top glass area) operated (i) conventionally, (ii) after fitting with North-South reflectors in V-trough alignment to raise the incident solar radiation on the still and (iii) after additionally fitting metallic condensers on the sides. Comparative data generated for (i) and (ii) gave an output (day + night) of 2.95 and 5.95 L, respectively, on a typical sunny day in April 2012, and 2.54 and 5.11 L during a typical day in November 2012. Similarly, comparative data of (ii) and (iii) gave values of 4.72, 4.42 and 5.44 L for (ii); 7.06, 5.31 and 6.27 L for (iii), for experiments conducted during typical days in March, June and December 2012, respectively. Output thus followed the trend (iii) > (ii) > (i). The maximum production of potable water with (iii) was 7.27 L m −2 d −1 on 22 March 2012 with recovery of 40.4% with respect to concentrated (55,000 ppm) seawater charged. The average output of (iii) over 258 d of operation spread over the year was 5.07 L m −2 d −1 , and the average efficiency with respect to incident radiation on top glass cover was 32.86%. Such a still, which was not only more productive but also easy to operate, clean and maintain, would be an ideal sustainable solution for individual households in the proximity of the sea if the unit can be made affordable. A scaled-up version of the unit at (ii), having 3.02 m 2 top glass area, and with some modifications in aspect ratio, material of construction and number of steps, gave ca. 3.5 times the output of (ii) with 35,000 ppm seawater feed, indicating the scalability of the still in V-trough design.

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A portable single-basin solar still with an external reflecting booster and an outside condenser

Cited by 59 publications

References 18 publications

Different parameters affecting the condensation rate on an active solar still—A review

Different parameters affecting the condensation rate on an active solar still—A review

Theoretical Analysis of the Effect of a Bottom Reflector on a Vertical Multiple-Effect Diffusion Solar Still Coupled with a Basin-Type Still

Practical and sustainable household seawater desalination using an improved solar still

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