Comparative study based on thermal, exergetic and economic analyses of a tubular solar still with semi-circular corrugated absorber

Elshamy, Samir M.; El‐Said, Emad M.S.

doi:10.1016/j.jclepro.2018.05.243

Cited by 130 publications

(18 citation statements)

References 37 publications

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“…It is noted that TSS has better performance as compared to triangular still. Experimental investigation of absorber plate shapes influences the behavior of TSS was done by (Elshamy & El-Said 2018). Collected basin shapes included semi-circular corrugated (TSS-SCC) and the flat plate basin (TSS-FPB) were studied at the weather of Giza in Egypt.…”

Section: Single Rectangular Basin Tubular Covermentioning

confidence: 99%

Influence of Various Basin Types on Performance of Passive Solar Still: A Review

Pham

Hadiyanto

et al. 2021

Int. J. Renew. Energy Dev.

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Passive solar still is the simplest design for distilling seawater by harnessing solar energy. Although it is undeniable that solar still is a promising device to provide an additional freshwater source for global increasing water demand, low thermal efficiency along with daily distillate yield are its major disadvantages. A conventional solar still can produced 2 to 5 L/m2day. Various studies have been carried out to improve passive solar stills in terms of daily productivity, thermal efficiency, and economic effectiveness. Most of the researches that relate to the daily output improvement of passive solar still concentrates on enhancing evaporation or/and condensation processes. While the condensation process is influenced by wind velocity and characteristics of the condensed surface, the evaporation process is mainly affected by the temperature of basin water. Different parameters affect the brackish water temperature such as solar radiation, design parameters (for example water depth, insulators, basin liner absorptivity, reflectors, sun tracking system, etc). The inclined angle of the top cover is suggested to equal the latitude of the experimental place. Moreover, the decrease of water depth was obtained as a good operational parameter, however, the shallow water depth is required additional feed water for ensuring no dry spot existence. Reflectors and sun-tracking systems help solar still absorb as much solar intensity as possible. The internal reflector can enhance daily yield and efficiency of stepped solar still up to 75% and 56% respectively, whereas, passive solar still with the support of a sun-tracking system improved daily yield up to 22%. Despite large efforts to investigate the impact of the different parameters on passive solar distillation, the effect of the basin liner (including appropriate shapes and type of material), needs to be analyzed for improvement in practical utilization. The present work has reviewed the investigation of the solar still performance with various types of basin liner. The review of solar stills has been conducted critically with rectangular basin, fins basin, corrugated basin, wick type, steps shape, and cylindrical shape basin with variety of top cover shapes. The findings from this work conclude that the basin liner with a cylindrical shape had better performance in comparison with other metal types and provides higher freshwater output. Stepped type, inclined, fin absorber, and corrugated shapes had the efficient performance. Further exploration revealed that copper is the best-used material for the productivity of passive solar still.

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Section: Single Rectangular Basin Tubular Covermentioning

confidence: 99%

Influence of Various Basin Types on Performance of Passive Solar Still: A Review

Pham

Hadiyanto

et al. 2021

Int. J. Renew. Energy Dev.

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“…In addition, these systems that need large land areas are suitable for small capacity applications with maximum system productivity of 10 m 3 /day of fresh water, such as active or passive solar stills (see Figure 4). 20,27,28,57,59,63,64 On the other hand, the indirect desalination systems are divided into two subsystems; the collection of the solar energy and the conventional desalination unit such as HDH, MSF, MED, and VC systems or membrane desalination (MD) methods such as RO and ED. 2,21,24,43,45,60,65,66 The thermal energy required to drive the WDSs can be obtained utilizing solar energy using photovoltaic panels, solar collectors, or solar ponds.…”

Section: Hdh Desalination Systems Using Solar Energymentioning

confidence: 99%

“…Therefore, HDH desalination units driven by water heating systems with solar energy could be cost-effective. 27 The solar collectors can be evacuated tube collector (ETC), 85,103,104 flat-plate collector (FPC), [147][148][149] F I G U R E 2 0 Schematic diagram of HDH desalination unit 143 [Colour figure can be viewed at wileyonlinelibrary.com] parabolic trough collector (PTC), 69,70,91 Fresnel lens collector (FLC), 71,150 solar still (SS), 63,64,151,152 or solar pond systems. 72 Different types of electrical energy for heating water in HDH desalination systems were presented by a number of researchers based on electrical heaters 95,100,153 and electrical resistances.…”

Section: Water Heating Systemmentioning

confidence: 99%

Desalination process using humidification–dehumidification technique: A detailed review

et al. 2020

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Summary The lack of fresh water resources is one of the important reasons obstructing progress all over the world. To overcome this crucial situation, the water desalination system (WDS) is progressed, enhanced, and modified. The desalination plant is mostly powered by nonrenewable energy resources, mainly by fossil fuels that make it an expensive and high‐energy‐consuming technology. Therefore, it is indispensable to depend on renewable energy supplies to drive desalination systems. Recently, the total thermal energy desired to operate the humidification–dehumidification desalination systems can be gained from renewable/sustainable energy resources such as geothermal energy and solar energy. Among the different desalination techniques, the HDH is considered one of the most effective desalination techniques to manage the critical issue of shortage of drinking water. The current paper presents a comprehensive review of diverse types of HDH desalination systems as well as their fundamental components. The present work revealed that the seawater HDH system is a promising technology to produce fresh water, particularly for decentralized demand. The packed bed humidifier is the most utilized type in the HDH water desalination system than other types of humidifiers. Furthermore, the direct dehumidifier enhances the performance of HDH desalination system compared to the indirect one. The present study concludes that the hybrid energy systems have the highest gain output ratio, while the thermal energy systems have the lowest gain output ratio. Water heating with solar energy has a significant enhancement in system productivity compared with solar air heating. The HDH WDS incorporated with heat pump achieves appropriate system productivity and gain output ratio with the lowest cost per liter.

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“…This model enhanced the yield by 676% and minimized the yield cost by 45.5%. Elshamy and El-Said [17] researched the TSS with a semi-circular corrugated absorber for improving its efficiency. The corrugated absorber plate increased the desalination rate by 26.27%.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Tubular Solar Stills with Phase Change Material and Nano-Enhanced Phase Change Material

et al. 2020

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This study is intended to investigate and analyze the operational performances of the Conventional Tubular Solar Still (CTSS), Tubular Solar Still with Phase Change Material (TSS-PCM) and Tubular Solar Still with Nano Phase Change Material (TSS-NPCM). Paraffin wax and graphene plusparaffin wax were used in the CTSS to obtain the modified solar still models. The experimental study was carried out in the three stills to observe the operational parameters at a water depth of 1 cm. The experiment revealed that TSS-NPCM showed the best performance and the highest yield in comparison to other stills. The distillate yield from the CTSS, TSS-PCM and TSS-NPCM was noted to be 4.3, 6.0 and 7.9 kg, respectively, the daily energy efficiency of the stills was observed to be 31%, 46% and 59%, respectively, and the daily exergy efficiency of the stills was recorded to be 1.67%, 2.20% and 3.75%, respectively. As the performance of the TSS-NPCM was enhanced, the cost of freshwater yield obtained was also low in contrast to the other two types of stills.

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Comparative study based on thermal, exergetic and economic analyses of a tubular solar still with semi-circular corrugated absorber

Cited by 130 publications

References 37 publications

Influence of Various Basin Types on Performance of Passive Solar Still: A Review

Influence of Various Basin Types on Performance of Passive Solar Still: A Review

Desalination process using humidification–dehumidification technique: A detailed review

Comparative Study of Tubular Solar Stills with Phase Change Material and Nano-Enhanced Phase Change Material

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