Exergoeconomic and enviroeconomic analyses of hybrid double slope solar still loaded with nanofluids

Sahota, Lovedeep; Tiwari, G.N.

doi:10.1016/j.enconman.2017.05.068

Cited by 138 publications

(24 citation statements)

References 35 publications

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“…Table 2. Sahota and Tiwari [57] found that the exergy of the solar still increases by employing the nanoparticles. Figure 11 shows the result of velocity vectors at the central section of the pyramid still for the case of base fluid (without particle).…”

Section: Solar Still Enhanced Only With Nanoparticlementioning

confidence: 99%

“…Sahota and Tiwari[56] found that the optimized concentration of nanoparticles is a function of the climatic conditions including the ambient temperature and solar radiation intensity. In a recent study Sahota and Tiwari[57] used Al2O3, CuO, and TiO2 nanoparticles in a double slope solar still. They calculated the annual energy, exergy, and productivity of this still.Sahota and Tiwari[57] observed considerable improvements in different parameters by using these nanoparticles.…”

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confidence: 99%

“…In a recent study Sahota and Tiwari[57] used Al2O3, CuO, and TiO2 nanoparticles in a double slope solar still. They calculated the annual energy, exergy, and productivity of this still.Sahota and Tiwari[57] observed considerable improvements in different parameters by using these nanoparticles. The improvements in still by nanoparticles in comparison with the case of base fluid are presented in…”

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confidence: 99%

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A concise review on the role of nanoparticles upon the productivity of solar desalination systems

Rashidi

Karimi

Mahian

et al. 2018

J Therm Anal Calorim

138

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In recent years, nanofluids have been widely used to improve the performance of various energy systems due to their favourable thermo-physical and optical characteristics. In particular, solar distillation systems, as an affordable and reliable technique to provide freshwater, have benefited from nanofluid technology. This article performs a review of literature on the implementation of nanofluid technology in active and passive solar distillation systems. The progress made and the existing challenges are discussed and some conclusions and suggestions are made for future research. The review indicates that the daily productivities of solar distillation systems enhance by using nanofluid and increasing the volume fraction of nanoparticles. However, long-term operational stability and life cycle assessment remain critical issues. These factors should be considered for future research in this field.

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Section: Solar Still Enhanced Only With Nanoparticlementioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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A concise review on the role of nanoparticles upon the productivity of solar desalination systems

Rashidi

Karimi

Mahian

et al. 2018

J Therm Anal Calorim

138

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“…Many companies engaged in technology use solar energy as their energy source, including automotive manufacturers, power plants and electronic equipment. One of the uses of solar energy as an energy source to produce clean water is the desalination system [3]. The basic principle of desalination is to evaporate water into condensate.…”

Section: Introductionmentioning

confidence: 99%

Energy and Exergy Efficiency of Double Slope Passive Solar Still

Saragi

Damanik²

2020

JMEST

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Solar desalination functions to filter water, both sea water and brackish water, to produce clean water that is fit for consumption with energy from the sun. Solar energy is a renewable energy source that has been widely studied for its use. One of its uses is in a double slope passive solar still where the sun is the main source. Energy and exergy obtained from solar energy are not all used to evaporate water in the desalination system, so it is necessary to calculate efficiency energy and exergy in the system. This study aims to obtain data on the amount of efficiency energy and exergy from the double slope passive solar still as well as the factors that affect efficiency energy and exergy. The results showed that energy efficiency was in the range of 30.20% to 55.15% and exergy efficiency was in the range of 0.93% to 5.36%. The factors that influence the amount of energy efficiency and exergy are solar intensity, basin area, basin cover area, amount of water produced and ambient temperature.

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“…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

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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

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Exergoeconomic and enviroeconomic analyses of hybrid double slope solar still loaded with nanofluids

Cited by 138 publications

References 35 publications

A concise review on the role of nanoparticles upon the productivity of solar desalination systems

A concise review on the role of nanoparticles upon the productivity of solar desalination systems

Energy and Exergy Efficiency of Double Slope Passive Solar Still

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

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