Enhancement of solar still by reticular porous media: Experimental investigation with exergy and economic analysis

Rashidi, Saman; Rahbar, Nader; Valipour, Mohammad Sadegh; Esfahani, Javad Abolfazli

doi:10.1016/j.applthermaleng.2017.11.089

Cited by 136 publications

(28 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…• While analysing annual energy savings, solar still without nanoparticles has a minimum effect of approximately 1421 kWh, and 512. 26…”

Section: Discussionmentioning

confidence: 99%

“…Solar thermal technology is the traditional method to conserve the continuous use of fossil fuel to evaporate water. Multistage flash, membrane desalination, and reverse osmosis technique were developed with the constant operation for mass production of drinking water, whereas it consumes electrical energy as the primary source and requires higher land capacity with initial investment . Even the quality of produced fresh water in direct incorporation of particles in the fluid is questionable.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental investigation on the effect of MgO and TiO ₂ nanoparticles in stepped solar still

et al. 2019

View full text Add to dashboard Cite

Summary This work aims at augmenting the amount of potable water using MgO and TiO2 in stepped solar still. Experiments were carried out for the climatic conditions of Chennai, India, with two different concentrations of nanofluids inside a stepped basin under three different cases. Results show that there is an improvement in yield of fresh water from stepped solar still by 33.18% and 41.05% using 0.1% and 0.2% volume concentration of TiO2 nanofluid, respectively, whereas the freshwater yield from stepped still with MgO nanofluids improved by 51.7% and 61.89%. Furthermore, the economic analysis revealed that the cost of potable water from the modified solar still reduced from 0.029 to 0.016 $/kg. Similarly, the useful annual energy, yearly cost per kilogram, and annual cost per kilowatt hour are significantly profitable with the use of MgO nanofluid in the stepped basin and found as 512.46 kWh, 0.025 $/kg, and 0.026 $/kWh, respectively. It is also found that the cost of potable water from the modified still significantly increases as the amount of fresh water produced is decreased with increased fabrication cost of the solar still.

show abstract

“…• While analysing annual energy savings, solar still without nanoparticles has a minimum effect of approximately 1421 kWh, and 512. 26…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the effect of MgO and TiO ₂ nanoparticles in stepped solar still

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Basin design and material are also found to influence the productivity of solar stills. Further, recent studies have also suggested the use of additives like rubber scrapers [37], energy storing material (black cotton and cloths waste cotton pieces, clay pots and metallic elements [38], porous media [39], and nanoparticles [40,41] to enhance the distillate output and distillation efficiencies. Finned basin solar stills were also found to have more productivity as reported by Rabhi et al [29], El-Sebaii and El-Naggar [42] and Panchal and Mohan [43].…”

Section: Introductionmentioning

confidence: 99%

Effect of specific height on productivity and thermal efficiency of a solar still: An experimental approach under indoor environment

Jamil¹,

Akhtar²

2019

Env Prog and Sustain Energy

View full text Add to dashboard Cite

A novel experimental approach is presented where studies have been conducted on a solar still at four specific heights in the range of 0.266–0.341 m (in steps of 0.025 m) keeping other dimensions constant. Performance of solar still is established under indoor environment to suppress meteorological factors. Uniform heat was supplied to the solar still through flat plate‐type electrical heaters. For each specific height, the performance of the solar still was evaluated at five heat fluxes (600–1000 W/m2 in steps of 100 W). Performance of solar still at different specific heights was compared in terms of operating temperatures, productivity, and efficiency. It was found that reduction in specific height enhances distillate productivity as well as thermal efficiency of the solar still due to reduction in cavity volume and an increase in average operating temperature. An increase of in daily distillate yield of 89.44% (at 600 W/m2), 56.07% (at 700 W/m2), 28.50% (at 800 W/m2), 38.60% (at 900 W/m2), and 37.38% (at 1000 W/m2) between Case 1 to Case 4 was observed. Further, between Case 1 and Case 4, the thermal efficiency increased from 27.29 to 46.18%, 32.73 to 51.06%, 36.82 to 52.17%, 41.25 to 56.79%, and 42.55 to 57.50% at 600, 700, 800, 900, and 1000 W, respectively. Results demonstrate that for a particular specific height the total daily productivity increases linearly with heat flux. Correlation for estimating thermal efficiency of solar still is proposed in terms of the aspect ratio and input power. © 2019 American Institute of Chemical Engineers Environ Prog, 38: e13227, 2019

show abstract

“…In fact, the zero discharge desalination (ZDD) process is a feasible solution to decrease or also, remove the biological problems which are resultant of concentrated brine wastewater drainage into sea or land ecosystem . Processes which focus on waste problems and reduce the risks of these disposal streams are introduced as zero discharge desalination processes . This solution includes a series of processes lead to beneficial products as water and purified element, such as salt and other ions .…”

Section: Introductionmentioning

confidence: 99%

“…6,[9][10][11] Processes which focus on waste problems and reduce the risks of these disposal streams are introduced | 585 FARAHBOD AnD OMIDVAR as zero discharge desalination processes. 12 This solution includes a series of processes lead to beneficial products as water and purified element, such as salt and other ions. 13,14 A passive process which applies solar energy is one of this type of zero desalination processes and high-quality distilled water is produced through this passive method.…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of collection, thermal, and conductivity efficiency of a solar distiller pond as a free concentration unit in wastewater treatment process

Farahbod

Omidvar

2018

Energy Science & Engineering

View full text Add to dashboard Cite

The performance of one solar pond as a passive step in distilled and potable water production from desalination effluent is surveyed in this research. This solar pond is proposed in a zero discharge desalination process to prevent the salinity shocking which is made by a brackish water stream that exists from desalination units. The solar pond performance is evaluated by measuring three types of efficiency, experimentally, and mathematically. The efficiencies which are defined and calculated from experimental data are conductivity efficiency, thermal efficiency, and water recovery efficiency. The mathematical results are verified by experimental data which has been obtained during a year. The theoretical modelings show very good agreement with experimental data, especially for water collection and conductivity efficiency evaluation. The relative error of theoretical and experimental results for thermal efficiency evaluation through the day and night is obtained 7.2% and 4.9%, respectively.

show abstract

Enhancement of solar still by reticular porous media: Experimental investigation with exergy and economic analysis

Cited by 136 publications

References 21 publications

Experimental investigation on the effect of MgO and TiO ₂ nanoparticles in stepped solar still

Experimental investigation on the effect of MgO and TiO ₂ nanoparticles in stepped solar still

Effect of specific height on productivity and thermal efficiency of a solar still: An experimental approach under indoor environment

Experimental evaluation of collection, thermal, and conductivity efficiency of a solar distiller pond as a free concentration unit in wastewater treatment process

Contact Info

Product

Resources

About

Enhancement of solar still by reticular porous media: Experimental investigation with exergy and economic analysis

Cited by 136 publications

References 21 publications

Experimental investigation on the effect of MgO and TiO 2 nanoparticles in stepped solar still

Experimental investigation on the effect of MgO and TiO 2 nanoparticles in stepped solar still

Effect of specific height on productivity and thermal efficiency of a solar still: An experimental approach under indoor environment

Experimental evaluation of collection, thermal, and conductivity efficiency of a solar distiller pond as a free concentration unit in wastewater treatment process

Contact Info

Product

Resources

About

Experimental investigation on the effect of MgO and TiO ₂ nanoparticles in stepped solar still

Experimental investigation on the effect of MgO and TiO ₂ nanoparticles in stepped solar still