Combined effects of composite thermal energy storage and magnetic field to enhance productivity in solar desalination

Rufuss, D. Dsilva Winfred; Arulvel, S.; Kumar, Viresh; Davies, Philip A.; Arunkumar, T.; Sathyamurthy, Ravishankar; Kabeel, A.E.; Vishwanath, M. Anand; Reddy, D. Sai Charan; Dutta, Amandeep; Agrawal, Mayank; Hiwarkar, Vedant Vilas

doi:10.1016/j.renene.2021.07.124

Cited by 21 publications

(4 citation statements)

References 86 publications

(171 reference statements)

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“…Mixing a high-thermal conductivity graphite plate with paraffin wax resulted in a substantial improvement in the total productivity of the solar still. Specifically, there was a 62% increase during daytime hours and a remarkable 235% increase during night-time hours 27 . Three solar stills, all with identical dimensions, were designed and fabricated: one utilizing PCM, another integrated with nano phase change material (NPCM) composed of paraffin and 0.5% mass of silica nanoparticles and the third being a conventional setup.…”

Section: Introductionmentioning

confidence: 94%

Improved solar still productivity using PCM and nano- PCM composites integerated energy storage

Murali,

Ramani,

Murugan

et al. 2024

Sci Rep

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The study investigates the impact of Phase Change Material (PCM) and nano Phase Change Materials (NPCM) on solar still performance. PCM and a blend of NPCM are placed within 12 copper tubes submerged in 1 mm of water to enhance productivity. Thermal performance is assessed across four major scenarios with a fixed water level of 1 mm in the basin. These scenarios include the conventional still, equipped with 12 empty copper rods and 142 g of PCM in each tube, as well as stills with NPCM Samples 1 and 2. Sample 1 contains 0.75% nanoparticle concentration plus 142 g of PCM in the first 6 tubes, while Sample 2 features 2% nanoparticle concentration plus 142 g of PCM in the subsequent 6 tubes. Aluminum oxide (Al2O3) nanoparticles ranging in size from 20 to 30 nm are utilized, with paraffin wax (PW) serving as the latent heat storage (LHS) medium due to its 62 °C melting temperature. The experiments are conducted under the local weather conditions of Vaddeswaram, Vijayawada, India (Latitude-80.6480 °E, Longitude-16.5062 °N). A differential scanning calorimeter (DSC) is utilized to examine the thermal properties, including the melting point and latent heat fusion, of the NPCM compositions. Results demonstrate that the addition of nanoparticles enhances both the specific heat capacity and latent heat of fusion (LHF) in PCM through several mechanisms, including facilitating nucleation, improving energy absorption during phase change, and modifying crystallization behavior within the phase change material. Productivity and efficiency measurements reveal significant improvements: case 1 achieves 2.66 units of daily production and 46.23% efficiency, while cases 2, 3, and 4 yield 3.17, 3.58, and 4.27 units of daily production, respectively. Notably, the utilization of NPCM results in a 60.37% increase overall productivity and a 68.29% improvement in overall efficiency.

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Section: Introductionmentioning

confidence: 94%

Improved solar still productivity using PCM and nano- PCM composites integerated energy storage

Murali,

Ramani,

Murugan

et al. 2024

Sci Rep

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“…Some of the research works were carried out in solar stills using a magnetic field to enhance the overall productivity 29–31 . Dumka et al 32 employed ring magnets in a solar still and boosted evaporation and productivity by 49.2% and 23.5% over CSS.…”

Section: Introductionmentioning

confidence: 99%

Performance enhancement of a solar still using magnetic powder as an energy storage medium‐exergy and environmental analysis

Dhivagar¹,

Shoeibi

Kargarsharifabad

et al. 2022

Energy Science & Engineering

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The use of different energy storage materials can have a high effect on the water productivity of solar desalination. This study evaluates the impact of magnetic powders on modified solar still (MPSS) performance and compares the results with conventional solar still (CSS). Black iron oxide magnetic powder was selected to increase solar radiation absorption. The black iron magnetic powder simultaneously acts as a thermal storage material and a porous absorber medium. The thermal energy stored in the magnetic powder improved the performance of the MPSS during peak solar irradiation hours, resulting in higher productivity. The results showed that the thermal performance of MPSS was higher than CSS. The MPSS exhibited a 39.8% higher evaporative and 14.5% higher convective heat transfer rate compared with CSS. Results showed that the cumulative water productivity of MPSS was 31.2% greater than CSS. Also, the energy and exergy efficiencies of MPSS were improved by 18.9% and 19.04%, respectively, compared with CSS. Moreover, the predicted payback period in MPSS and CSS were 3.2 and 4.3 months. Additionally, the CO 2 reduction of MPSS was improved by approximately 45.53% compared with that of CSS. The results also showed that the exergoeconomic parameter of MPSS and CSS with energy base was equal to 33.1 and 24.56 kWh/$, respectively.

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“…Different materials such as Jute cloth (Sakthivel et al 36 ), Paraffin wax (Ansari et al, 37 Abd Elbar & Hassan, 38 Hafs et al 39 and Yousef & Hassan 40 and Ghadamgahi et al 41 ), Nano Paraffin wax (Elfasakhany 42 ), metal matrix structures (Sathish et al 43 ), sand and black wool fibers (Hassan & Abo‐Elfadl 44 ), kanchey marbles (Saravanan et al 45 ), pumice stones (Bilal et al 46 ), magnetic field (Rufuss et al 47 ), Quartzite rock (Nagaraj et al 48 ), gravel (Sakthivel & Shanmugasundaram, 49 Dhivagar et al, 50 Elashmawy, 51 Panchal, 52 Panchal & Shah, 53 Rajaseenivasan et al, 54 and crushed gravel sand Dhivagar et al, 55 ) were used in CSS to improve the daily yield from the CSS. From the recent literature on solar stills, it is identified that no research was reported on tar‐coated blue metal stones as energy storage materials in the CSS.…”

Section: Introductionmentioning

confidence: 99%

“…26 Effluent Wastewater desalination Systems were reported by Karimi & Farahbod, 27 Taherizadeh et al, 28 and Farahbod, & Omidvar. 29 A closed solar desalination pond was reported by Farahbod, 30 and Farahbod, 31 Industrial wastewater was treated using a solar pond Niazi et al 32 and Taherizadeh et al 33 Brackish wastewater treatment in a closed shallow solar basin was published by Farahbod 34 and zero discharge desalination using a forced circulation evaporator was studied by Farahbod et al 35 Different materials such as Jute cloth (Sakthivel et al 36 ), Paraffin wax (Ansari et al, 37 Abd Elbar & Hassan, 38 Hafs et al 39 and Yousef & Hassan 40 and Ghadamgahi et al 41 ), Nano Paraffin wax (Elfasakhany 42 ), metal matrix structures (Sathish et al 43 ), sand and black wool fibers (Hassan & Abo-Elfadl 44 ), kanchey marbles (Saravanan et al 45 ), pumice stones (Bilal et al 46 ), magnetic field (Rufuss et al 47 ), Quartzite rock (Nagaraj et al 48 ), gravel (Sakthivel & Shanmugasundaram, 49 Dhivagar et al, 50 Elashmawy, 51 Panchal, 52 Panchal & Shah, 53 Rajaseenivasan et al, 54 and crushed gravel sand Dhivagar et al, 55 ) were used in CSS to improve the daily yield from the CSS. From the recent literature on solar stills, it is identified that no research was reported on tar-coated blue metal stones as energy storage materials in the CSS.…”

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confidence: 99%

Experimental studies of solar still with tar‐coated blue metal stones: Energy and exergy study

Prasad¹,

Vaithilingam²,

Selvaraj³

et al. 2022

Env Prog and Sustain Energy

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In the present manuscript, performance studies of Solar Still (SS) were studied for the climatic conditions of Erode, India. Three different experiments were conducted:Conventional SS (CSS), CSS incorporated with blue metal stones, and CSS incorporated with tar-coated blue metal stones. Furthermore, the energy and exergy efficiency of the CSS is evaluated. The daily-distilled yield by incorporating the tarcoated blue metal stones in CSS is 3.21 Kg and blue metal stones in CSS is 2.89 Kg with augmentation of 34.4% and 27%, respectively than the CSS. The distilled water production during daytime (8 a.m.-6 p.m.) from the CSS, CSS incorporated with blue metal stones, and CSS incorporated with tar-coated blue metal stones is 2.02, 2.59, and 2.83 kg, respectively. Similarly distilled water production during nighttime (7 p.m. to 11 p.m.) is 0.08, 0.29, and 0.39 kg, respectively. The distilled water production during daytime and nighttime from the CSS incorporated with tar-coated blue metal stones and CSS incorporated with blue metal stones are 28.3%, 22%, 78.6%, and 71.7% higher than the day-time and night-time yield from the CSS. Also, the energy and exergy efficiency of the CSS incorporated with tar-coated blue metal stones and CSS incorporated with blue metal stones is 21.6% and 1.63%, and 20% and 1.4%, respectively.

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Combined effects of composite thermal energy storage and magnetic field to enhance productivity in solar desalination

Cited by 21 publications

References 86 publications

Improved solar still productivity using PCM and nano- PCM composites integerated energy storage

Improved solar still productivity using PCM and nano- PCM composites integerated energy storage

Performance enhancement of a solar still using magnetic powder as an energy storage medium‐exergy and environmental analysis

Experimental studies of solar still with tar‐coated blue metal stones: Energy and exergy study

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