Parametric studies of active regenerative solar still

Tiwari, G.N.; Sinha, Shivani

doi:10.1016/0196-8904(93)90136-x

Cited by 27 publications

(20 citation statements)

References 4 publications

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“…Also, the condensation rate will be high as the temperature of the cover reduces. Tiwari and Sinha 66 reported that the passive regenerative solar stills are more thermally efficient than active ones and also stated that as flow rate of water over the glass increases, thermal efficiency of the solar still increases. Sakthivel et al 67 studied a regenerative solar still and observed a 20% enhancement in the water productivity and 8% enhancement in the efficiency.…”

Section: Components Of Solar Stillsmentioning

confidence: 99%

Desalination using solar stills: A review

Shelake

Kumbhar

Sutar

2022

Env Prog and Sustain Energy

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Purified drinking water is the basic need of human beings. Purification of water assisted by freely available solar energy can be the best alternative compared with other water purification techniques available in the market today which consume nonrenewable energy. Distillation, which is the most ancient method, is being used for water purification. The device in which solar thermal energy converts brackish water into pure drinkable form is known as a solar still. Present article reports an extensive study of numerous designs of solar stills. The article also includes a review of effect of each parameter that influences the water productivity that is, pure water.Considerations of thermodynamics, heat transfer, and mass transfer are also explained in brief. The reviews of various kinds of analysis namely, theoretical, experimental, computational, cost, and water quality have been reported.

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Section: Components Of Solar Stillsmentioning

confidence: 99%

Desalination using solar stills: A review

Shelake

Kumbhar

Sutar

2022

Env Prog and Sustain Energy

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“…iv) Thermal efficiency and exergy analysis for HASS with and without water flowing over the glass cover were calculated using Eqs. (19)(20).…”

Section: Theoretical Observationsmentioning

confidence: 99%

“…The performance of regenerative type solar still was evaluated by Prakash and Kavathekar under ideal conditions [18]. The conclusions reported after parametric study of regenerative type active solar still are (i) Thermal efficiency of Passive stills was better than active ones and (ii) with rise in velocity of water, the thermal efficiency also rises [19]. Effect of thermal capacity on the performance of solar distillation system with water flowing above the glass cover was studied by Lawrence et al [20].…”

Section: Introductionmentioning

confidence: 99%

Heat transfer analysis of hybrid active solar still with water flowing over glass cover

Gaur¹,

Tiwari

Singh³

et al. 2021

Journal of Thermal Engineering

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The aim of this research is to carry out the heat transfer analysis of PVT hybrid active solar still (HASS) at different water depth to obtain maximum output. Experimentation is performed for validation of thermal modeling with and without flowing water, having water depth of 0.15m in the solar still basin. During experimentation, water flows above the glass cover. Theoretically calculated values of basin water, basin liner, glass temperature and yield obtained using thermal modeling are very near to the experimental values having correlation coefficients 0.988, 0.981, 0.999 and 0.985 respectively. It is also found that thermal efficiency and daily exergy output increases by 4% and 8.2% respectively for this hybrid system whose glass cover is getting cooled by water flowing over it. Theoretical calculation for distillate output of the system was also calculated out for various climatic conditions of India using developed thermal modeling and it is found that proposed system gives higher annual yield of 2756.67 kg/m 2 for the climate of Mumbai. The experimental uncertainty of the HASS is obtained as 14.82%.

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“…Tiwari et al [18] consists of a continuous flow of water from the main tank over the glass cover of the solar still Shown in Fig. 17.…”

Section: A Solar Still Coupled With Warm Water Storing Tank-mentioning

confidence: 99%

A comprehensive review on Enhancement heat transfer in solar stills by using external techniques.

Sharma¹,

Bhardwaj²,

Rawat³

et al. 2021

JUSST

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Water is resuscitative to the life cycle and the provision of drinking water; it can hardly be overcome in the current years. The defiance for human beings currently faces filtered water and the lack of renewable energy. Solar energy is an undesirable way of converting palpable water into freshwater using extraordinary energy sources that are readily obtainable on marl. The main problem with the conventional basin is still that the production is very insignificant. The most notable design parameters that influence productivity are the optimization of solar radiation, evaporation area, and water temperature. This paper intentions to give a comprehensive review about that the coalition of appropriate solar stills or improved designs that can favor the solar energy heat gain improves the overall performance of the system. Constructed on the current approach, a perspective conclusion has been made after the rich discussion with the help of distinctive information about the systems.

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Parametric studies of active regenerative solar still

Cited by 27 publications

References 4 publications

Desalination using solar stills: A review

Desalination using solar stills: A review

Heat transfer analysis of hybrid active solar still with water flowing over glass cover

A comprehensive review on Enhancement heat transfer in solar stills by using external techniques.

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