Experimental study on tubular solar still using Graphene Oxide Nano particles in Phase Change Material (NPCM's) for fresh water production

Kabeel, A.E.; Sathyamurthy, Ravishankar; Manokar, A. Muthu; Sharshir, Swellam W.; Essa, F.A.; Elshiekh, Ammar H.

doi:10.1016/j.est.2020.101204

Cited by 204 publications

(24 citation statements)

References 30 publications

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“…It is observed that water temperature increases linearly with the increase in the solar intensity; it reaches its maximum value when the solar intensity is maximum, and it is found to be decreased during the sunset hours. [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43] The maximum hourly water temperature for the CSS, the CSSGC, the CSSBH, and the CSSGCBH is found as 61°C, 59°C, 67°C, and 65°C, respectively. The hourly water temperature is maximum for the CSSBH and minimum for the CSSGC.…”

Section: Variations Of Water and Collector Cover Temperaturementioning

confidence: 96%

A comparative study of 3E (energy, exergy, and economy) analysis of various solar stills

Manokar

Vimala

Winston³

et al. 2020

Heat Trans

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In this paper, an experimental study of the conventional solar still (CSS), the conventional solar still with glass cooling (CSSGC), the conventional solar still with basin heating (CSSBH), and the conventional solar still with glass cooling and basin heating (CSSGCBH) was carried out on the basis of the distilled water production, the energy efficiency (EnE), the exergy efficiency (ExE), and economic analysis. The CSSGC and CSSBH contain Peltier modules for cooling the glass and heating the basin. The evaporative heat transfer coefficient for all the experimental stills was calculated. The values of daily distilled water production from the CSSGCBH, CSSBH, CSSGC, and CSS were 4.56, 3.79, 2.49, and 1.89 kg/m 2 , respectively. The daily distilled yield of the CSSBH and CSSGCBH were increased by 58.55% and 50.13%, respectively, as compared with the CSS. Moreover, the daily EnE and ExE of the CSSGCBH were 27.03% and 3.5%, respectively, whereas the EnE and ExE of the CSS were 10.88% and 1.3%, respectively. Furthermore, the cost of distilled water Abbreviations: CSS, conventional solar still; CSSBH, conventional solar still with basin heating; CSSGC, conventional solar still with glass cooling; CSSGCBH, conventional solar still with glass cooling and basin heating; EHTC, evaporative heat transfer coefficient; EnE, energy efficiency; ExE, exergy efficiency; T w − T g , temperature difference between the water and glass cover.

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Section: Variations Of Water and Collector Cover Temperaturementioning

confidence: 96%

A comparative study of 3E (energy, exergy, and economy) analysis of various solar stills

Manokar

Vimala

Winston³

et al. 2020

Heat Trans

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“…The graphene oxide nanoparticle with phase change material (NPCM) was used in the tubular solar still to improve the evaporation rate. The result was inferred that, the productivity of with and without NPCM was 2.59 and 5.62 kg/m 2 /day [32]. Many researchers used real wastewaters in the solar still for purification.…”

Section: Introductionmentioning

confidence: 98%

Effect of CuO, MoO3 and ZnO nanomaterial coated absorbers for clean water production

et al. 2020

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Solar energy is one of the most powerful sources for many sustainable applications. Recently, efficient water distillation has attracted significant attention. The fresh water productivity depends on how efficiently the system harvests the incoming solar energy and converts it into useful heat. In the present work, nano-coated absorber plates (NCAPs) were examined in the single slope solar still (SSSS) for clean water production. The NCAPs were CuO, MoO 3 and ZnO, respectively. The CuO-NCAP was fabricated with the thermal evaporation method while the radio-frequency Magnetron Sputtering technique was used to fabricate the MoO 3 and ZnO NCAPs. The attained particle size of the CuO, MoO 3 and ZnO are 30-34 nm, 25-30 nm and 30-35 nm, respectively. The sphere (CuO), plate (MoO 3), and wedge (ZnO) like morphologies are identified with field emission-scanning electron microscope. All the NCAPs and reference solar still were tested under the same environmental conditions. The climatic parameters (solar influx, ambient temperature and wind) and SSSS's temperatures including water temperature (T w), internal air temperature (T int-air), inner cover (T ic), outer cover (T oc), and absorber plate temperature (T NCAP) were measured at 30 min intervals with the help of Type-J thermocouples. Herein, we present an evaporative heat transfer (h ew), efficiency, and cost analysis of the SSSS with CuO, MoO 3 and ZnO-NCAPs. Three different feed waters fetched from the surface well water, hill side well water and hill side pond water were used in this work for evaporation. The result reveals that the evaporation of conventional single slope solar still, CuO, MoO 3 and ZnO NCAPs were 2.1 l/m 2 day, 2.9 l/m 2 day, 2.7 l/m 2 day and 2.6 l/m 2 day, respectively.

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“…This resulted into a 94.52% improvement on the distillate production compared to a solar still with PCM alone (Kabeel et al, 2019a). The addition of graphene oxide nanoparticles improved the thermal performance of a PCM based solar still by 52% and a corresponding saline water temperature increase of 7 • C. The total distillate produced for the nanoPCM system was 5.62 kg/m 2 (Kabeel et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Most of surface modification researches focus on enhancing the thermal properties and energy efficiency in the absorber basin for higher distillate yield (Kabeel et al, 2017(Kabeel et al, , 2020Hafs et al, 2018;Balachandran et al, 2019). However, for an absorber basin to be more effective for desalination, it should also possess excellent hydrophobicity.…”

Section: Introductionmentioning

confidence: 99%

Advanced Solar Still Development: Improving Distilled Water Recovery and Purity via Graphene-Enhanced Surface Modifiers

Baticados

Capareda

Liu

et al. 2020

Front. Environ. Sci.

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Solar distillation system depends on adhesion of water molecules inside the glass cover of solar stills. Regular glass surfaces are prone to adsorbing other unwanted compounds and in turn lower the percentage of recovery of pure distilled water. In this study, the production of purified distilled water was compared with and without the use of graphene-based surface modifiers. In areas where salt content is high, the first pass is still usually laden with salts. Hence, to improve adhesion of water and rejection of salts, both the inside glass cover surfaces and the metal absorber plates were modified using oxygen plasma treatment and graphene surface enhancement. Results showed a 48.9% improvement of distilled water recovery from an initial recovery of 2.90 L/m 2 per day to an average of 4.32 L/m 2 per day. In addition, the resulting distilled water passes the World Health Organization drinking water standards such as pH, electrical conductivity (EC), and salinity. The average reduction in EC was 96.52%, an average increase of 5.06% of pH, and an average reduction of salinity of 96.52%, all measured at the highest brine salinity of 5%. The reported value of EC was 23.33 µS/cm, a lowest and near-neutral pH of 6.85, and an average salinity of 12.10 ppm.

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Experimental study on tubular solar still using Graphene Oxide Nano particles in Phase Change Material (NPCM's) for fresh water production

Cited by 204 publications

References 30 publications

A comparative study of 3E (energy, exergy, and economy) analysis of various solar stills

A comparative study of 3E (energy, exergy, and economy) analysis of various solar stills

Effect of CuO, MoO3 and ZnO nanomaterial coated absorbers for clean water production

Advanced Solar Still Development: Improving Distilled Water Recovery and Purity via Graphene-Enhanced Surface Modifiers

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