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Ravishankar Sathyamurthy - One of the best experts on this subject based on the ideXlab platform.
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experimental analysis of single basin Solar Still with porous fins
International journal of ambient energy, 2020Co-Authors: Hitesh Panchal, Ravishankar SathyamurthyAbstract:The present research paper explains the experimental analysis of the single-basin Solar Still with attachment of porous fins on the absorber plate. Here, experiments have been conducted on the sing...
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economic and exergy investigation of triangular pyramid Solar Still integrated to inclined Solar Still with baffles
International journal of ambient energy, 2019Co-Authors: Hitesh Panchal, Ravishankar Sathyamurthy, S A Elagouz, Muthu A Manokar, D. Mageshbabu, A E Kabeel, Naveen P Kumar, T Arunkumar, Yazan Taamneh, R. BharathwaajAbstract:ABSTRACTThis paper presents the detailed exergy and economic investigation of triangular pyramid Solar Still under passive and active mode of operation. For validation, experiments were carried out...
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a mini review of techniques used to improve the tubular Solar Still performance for Solar water desalination
Process Safety and Environmental Protection, 2019Co-Authors: Ammar H Elsheikh, Swellam W Sharshir, Youssef M Ellakany, Almoataz M Algazzar, M R Elkadeem, Elbager M A Edreis, Abdelrahman S Waly, Ravishankar SathyamurthyAbstract:Abstract Today, clean water availability is quite hard especially for people living in remote areas and coastal ones. Even for those who find underground water, they need to treat it before using. Solar Still is a very useful method to be used in desalination and purifying water as it uses Solar energy which is available around the globe with no cost and is eco-friendly. Many types of Solar Stills are invented to increase its daily productivity (stepped Solar Stills, inclined Solar Stills, pyramid Solar Still, wick, etc.). In this regard, this paper represents a mini-review of a new type of Solar Still named tubular Solar Still (TSS), its working method, thermal analysis, performance and method of enhancement. The remarkable improvement is attributed to the use of nanotechnology (ZnO nano-rod shape) by which the productivity and efficiency are increased by 30% and 38% respectively. Moreover, some futuristic developments on TSS are included in this review.
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Sustainable fresh water and power production by integrating PV panel in inclined Solar Still
Journal of Cleaner Production, 2018Co-Authors: A. Muthu Manokar, D. Prince Winston, Abd Elnaby Kabeel, Ravishankar SathyamurthyAbstract:Present work is an effort to study the performance of a PV panel integrated Solar Still to generate power and to do desalination process to meet the water and power scarcity issues. The system performance is experimentally investigated from different aspects such as Still productivity, Still efficiency, PV panel power production, PV panel efficiency, and exergy efficiency. Results show that the maximum diStillate output of 7.3 kg was obtained when inclined Solar panel basin Solar Still with the sidewall and bottom insulation. The freshwater production from inclined Solar panel basin Solar Still with the sidewall and bottom insulation, inclined Solar panel basin Solar Still with Sidewall insulation and inclined Solar panel basin Solar Still without any insulation was 7.3 kg, 4.4 kg and 3.7 kg respectively. The daily energy efficiency and exergy efficiency of inclined Solar panel basin Solar Still with the sidewall and bottom insulation are higher compared to other cases. The daily efficiency of 34.5%, 38.3% and 71.2% and exergy efficiency of 1.3%, 2.3% and 4.5% was recorded for inclined Solar panel basin Solar Still without any insulation, inclined Solar panel basin Solar Still with the sidewall insulation and inclined Solar panel basin Solar Still with sidewall and bottom insulation respectively.
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experimental investigation on hybrid pv t active Solar Still with effective heating and cover cooling method
Desalination, 2017Co-Authors: Praveen B Kumar, Ravishankar Sathyamurthy, Muthu A Manokar, Prince D Winston, P Pounraj, A E KabeelAbstract:Abstract A hybrid photovoltaic/thermal (PV/T) active Solar Still and a conventional passive Solar Still with single slope were designed, fabricated and experimented at three different water depths (0.05 m, 0.10 m, and 0.15 m). For the higher production of diStillate water, a nickel-chromium (NiCr) heater powered by Solar photovoltaic (PV) was incorporated in the proposed hybrid active Still. Solar PV module was cooled by the saline water which increases the efficiency of the Solar PV as well as the diStillate water production. The daily yield from the proposed hybrid active (PV/T) Solar Still is 6 times more than the conventional passive Still. This new system of renewable energy based power and diStillate water production is highly self-sustainable in the remote areas. From the experimental study it is clear that, the proposed hybrid active (PV/T) Solar Still gives an enhanced overall thermal and electrical efficiency, that is nearly 25% higher than the conventional passive one.
A E Kabeel - One of the best experts on this subject based on the ideXlab platform.
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economic and exergy investigation of triangular pyramid Solar Still integrated to inclined Solar Still with baffles
International journal of ambient energy, 2019Co-Authors: Hitesh Panchal, Ravishankar Sathyamurthy, S A Elagouz, Muthu A Manokar, D. Mageshbabu, A E Kabeel, Naveen P Kumar, T Arunkumar, Yazan Taamneh, R. BharathwaajAbstract:ABSTRACTThis paper presents the detailed exergy and economic investigation of triangular pyramid Solar Still under passive and active mode of operation. For validation, experiments were carried out...
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experimental investigation on hybrid pv t active Solar Still with effective heating and cover cooling method
Desalination, 2017Co-Authors: Praveen B Kumar, Ravishankar Sathyamurthy, Muthu A Manokar, Prince D Winston, P Pounraj, A E KabeelAbstract:Abstract A hybrid photovoltaic/thermal (PV/T) active Solar Still and a conventional passive Solar Still with single slope were designed, fabricated and experimented at three different water depths (0.05 m, 0.10 m, and 0.15 m). For the higher production of diStillate water, a nickel-chromium (NiCr) heater powered by Solar photovoltaic (PV) was incorporated in the proposed hybrid active Still. Solar PV module was cooled by the saline water which increases the efficiency of the Solar PV as well as the diStillate water production. The daily yield from the proposed hybrid active (PV/T) Solar Still is 6 times more than the conventional passive Still. This new system of renewable energy based power and diStillate water production is highly self-sustainable in the remote areas. From the experimental study it is clear that, the proposed hybrid active (PV/T) Solar Still gives an enhanced overall thermal and electrical efficiency, that is nearly 25% higher than the conventional passive one.
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experimental investigation on the effect of water mass in triangular pyramid Solar Still integrated to inclined Solar Still
Groundwater for Sustainable Development, 2017Co-Authors: Naveen P Kumar, Hitesh Panchal, Muthu A Manokar, B. Madhu, A E Kabeel, T Arunkumar, Ravishankar SathyamurthyAbstract:Abstract This research primarily concentrates on the use of integrating Solar Stills. Only few researchers have carried out experiments on Still-Still basis for improved yield. In the present novel system the yield of fresh water is improved by integrating inclined Solar Still with triangular pyramid Solar Still. Effect of water depth and flow rate on the yield of fresh water produced from Stills was experimentally investigated. Various water depths such as 0.02 m, 0.04 m, 0.06 m, 0.08 m are maintained in the interior of the basin of pyramidal Solar Still in case of non-integration whereas 0.02 m depth of water is maintained initially and outlet water of inclined Solar Still is fed to the triangular pyramidal Solar Still thereby the water temperature increases which enhances the yield of fresh water. The inclined Solar Still is maintained at constant flow rate of about 8.33 kg/h. Results show that the yield of Solar Still is improved by 79.05% in the case of inclined Solar Still incorporated to triangular pyramid Solar Still. Results also shows that higher water temperature is achieved in the case of inclined Solar Still integrated to triangular pyramid Solar Still at the minimum water depth of dw = 0.02 m.
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observational study of modified Solar Still coupled with oil serpentine loop from cylindrical parabolic concentrator and phase changing material under basin
Solar Energy, 2017Co-Authors: A E Kabeel, Mohamed AbdelgaiedAbstract:Abstract The performance of a cylindrical parabolic concentrator with focal pipe - coupled with a developed Solar Still with (oil heat exchanger, Phase Change Material (PCM)) have been experimentally investigated to improve the freshwater productivity. The cylindrical parabolic concentrator with focal pipe and oil heat exchanger (serpentine loop) represent the external heat source to increase the temperatures of the basin water and PCM. The PCM used as a heat storage medium. The influences of high heat exchanger oil temperature on the performance of the developed Solar Still are experimental investigated. A comparison between a developed Solar Still and the convenstional Solar Still is carried out to evaluate the enhancement in the freshwater productivity under the same ambient conditions. The experimental results indicated that, the freshwater productivity approximately reached 10.77 L/m2 day for the developed Solar Still, while its value is recorded 4.48 L/m2 day for conventional Solar Still. The freshwater productivity of the developed Solar Still is 140.4% higher than that of the conventional Solar Still in average. Also, the daily efficiency approximately reached 25.73% for the developed Solar Still, while its value is recorded 46% for conventional Solar Still. The percentage decrease in the daily efficiency for the developed Solar Still about 44% compared to the convenstional Solar Still in average. In the present experimental work the estimated cost of one liter of freshwater productivity reaches approximately 0.1359 LE (0.0174 $) and 0.1378 LE (0.0177 $) for developed Solar Still and conventional Solar Still, respectively. This results is obtained during the period from June to August 2015 under the Egyptian conditions.
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enhancing the Solar Still performance using nanofluids and glass cover cooling experimental study
Applied Thermal Engineering, 2017Co-Authors: F. A. Essa, Ammar H Elsheikh, Swellam W Sharshir, Guilong Peng, Lirong Wu, Nuo Yang, Showgi I T Mohamed, A E KabeelAbstract:Abstract The use of graphite and copper oxide micro-flakes with different concentrations, different basin water depths, and different film cooling flow rates is experimentally investigated in an attempt to improve the performance of Solar Still. The micro-flakes concentrations are ranged from 0.125% to 2%. While, the basin nanofluid depths are ranged from 0.25 to 5 cm. Whereas, the glass cooling flow rates are ranged between 1 and 12 kg/h. The obtained results show that the Solar Still productivity is enhanced by about 44.91% and 53.95% using the copper oxide and graphite micro-flakes, respectively, compared with the conventional Solar Still (without micro-flakes). In case of using the water over the glass cover, as a feed water, the output yield is improved by about 47.80% and 57.60% using copper oxide and graphite particles, respectively while the daily efficiency of the conventional Still is 30%. Furthermore, the daily efficiencies of 38% and 40% are obtained when using copper oxide and graphite, respectively, without using glass film cooling. Finally, the Stills’ daily efficiencies when using copper oxide and graphite micro-flakes with glass film cooling are 46% and 49%, respectively.
Z M Omara - One of the best experts on this subject based on the ideXlab platform.
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Augmentation of a Solar Still diStillate yield via absorber plate coated with black nanoparticles
Alexandria Engineering Journal, 2017Co-Authors: Abd Elnaby Kabeel, F. A. Essa, A. S. Abdullah, Z M Omara, Thirugnanasambantham Arunkumar, Ravishankar SathyamurthyAbstract:Effects of utilizing nanomaterial on the Solar Still productivity investigated experimentally. Cuprous oxides (CuO) chosen as. a nanoparticles material. The nanoparticles added to the black paint of the Solar Still walls to enhance the Solar Still performance. Experiments conducted with cuprous oxide nanoparticles weight concentrations ranged from 10% to 40%. It is found that adding nanoparticles to paint increase heat transfer rate and saline water temperature. Solar Still productivity of the proposed system is higher than that for the conventional Still. Results acquired that utilizing CuO nanoparticles boosted the diStillate by 16% and 25% as compared to the conventional Solar Still (CSS) at weight fraction concentration of 10% and 40%, respectively. Payback period of the diStillation system for the modified Still using CuO nanomaterials is about 96. days, at weight fraction 10%, which is considerable as compared by 89. days for CSS.
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experimental investigation of corrugated absorber Solar Still with wick and reflectors
Desalination, 2016Co-Authors: Z M Omara, A. S. Abdullah, A E Kabeel, F. A. EssaAbstract:Abstract The performance parameters of the corrugated Solar Still (CrSS) and conventional Solar Still (CSS) are investigated experimentally from another point of view. The authors' view concerns with using the double layer wick material and also reflectors together inside the CrSS. In addition, the influence of saline water depth (1, 2, and 3 cm) on CrSS performance was also investigated. Results indicated an enhancement in the total productivity and efficiency of the CrSS. During experimentations, the productivities of CrSS with wick and reflectors are about 145.5% higher than the CSS, at a brine depth of 1 cm, and the daily efficiency of CrSS and CSS are approximately 59% and 33%, respectively.
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effect of using nanofluids and providing vacuum on the yield of corrugated wick Solar Still
Energy Conversion and Management, 2015Co-Authors: Z M Omara, A E Kabeel, F. A. EssaAbstract:Abstract Purifying water using Solar energy is a suitable green technique for rejecting salts from saline water. Solar Stills are famous and simple devices for sea water desalination but their productivity from freshwater is limited. Various novel techniques were advanced and established to increase the Solar Still output yield. In the current work, experimental studies with modifications on the ordinary Solar Still have been conducted to investigate the performance of the new erected Solar Still. A hybrid Solar diStillation system comprising of corrugated and wick absorbers of Solar Stills is integrated with an external condenser to examine their performance. The first Solar Still is a base traditional type (CSS), while the other one is a corrugated wick Still (CrWSS). The performance of CrWSS with internal reflectors, integrated with external condenser and using different types of nanomaterials is investigated and compared with the conventional Still. The two types of Solar Stills are subjected to the same metallurgical conditions. The influence of saline water depth (1, 2, and 3 cm) on CrWSS performance was also investigated. Results showed that integrating an external condenser, with corrugated wick Still, with reflectors improves the productivity of the modified Solar Still. Also; the yield of CrWSS with reflectors when providing a vacuum was enhanced to about 180% higher than the CSS. The productivity of the system is enhanced when using cuprous and aluminum oxides nano particles by an approximate percentages of 285.10% and 254.88% respectively.
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enhancing the Solar Still performance using Solar photovoltaic flat plate collector and hot air
Desalination, 2014Co-Authors: Mohamed A Eltawil, Z M OmaraAbstract:Abstract This work aims to enhance the productivity of a single slope Solar Still for remote communities facing electricity problems and a shortage of good quality water. The single slope Solar Still was equipped with a flat plate Solar collector, spraying unit, perforated tubes, external condenser and Solar air collector. The developed Solar Still (DSS) was evaluated in passive and active modes and compared with the conventional Solar Still (CSS). The circulated water was either sprayed into the DSS or pumped from the bottom upward forming fountains. A hot dry air was forced at the bottom of the DSS which constituted air bubbles to burst at the water surface. The DSS was powered by photovoltaic (PV) system and evaluated at different operating modes. The CSS productivity ranged from 3 to 4 l/m 2 . The DSS productivity was more than the CSS by 51–148% depending on the type of amendment. The use of external condenser with Solar Still increased the productivity by 51%. The use of circulated hot water in passive and active sprays without condenser led to increase the DSS productivity by 56% and 82%, respectively. The DSS has demonstrated its suitability for the desalination process when weather conditions are suitable and water demand is not too great.
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enhancing the stepped Solar Still performance using internal and external reflectors
Energy Conversion and Management, 2014Co-Authors: Z M Omara, A E Kabeel, M M YounesAbstract:Abstract The performance of stepped Solar Still with internal and external reflectors have been investigated in the current study. The reflectors are used to enhance energy input to the stepped Still. The influence of internal and external (top and bottom) reflectors on the performance of the stepped Solar Still is investigated. A comparison between modified stepped Solar Still and conventional Solar Still is carried out to evaluate the developed desalination system performance under the same climate conditions. The results indicated that, during experimentation the productivity of the modified stepped Solar Still with internal and external (top and bottom) reflectors is higher than that for conventional Still approximately by 125%. In this case the estimated cost of 1 l of diStillate for stepped Still with reflectors and conventional Solar Stills is approximately 0.031$ and 0.049$, respectively.
Hitesh Panchal - One of the best experts on this subject based on the ideXlab platform.
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experimental analysis of single basin Solar Still with porous fins
International journal of ambient energy, 2020Co-Authors: Hitesh Panchal, Ravishankar SathyamurthyAbstract:The present research paper explains the experimental analysis of the single-basin Solar Still with attachment of porous fins on the absorber plate. Here, experiments have been conducted on the sing...
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economic and exergy investigation of triangular pyramid Solar Still integrated to inclined Solar Still with baffles
International journal of ambient energy, 2019Co-Authors: Hitesh Panchal, Ravishankar Sathyamurthy, S A Elagouz, Muthu A Manokar, D. Mageshbabu, A E Kabeel, Naveen P Kumar, T Arunkumar, Yazan Taamneh, R. BharathwaajAbstract:ABSTRACTThis paper presents the detailed exergy and economic investigation of triangular pyramid Solar Still under passive and active mode of operation. For validation, experiments were carried out...
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a review on Solar Still a simple desalination technology to obtain potable water
International journal of ambient energy, 2019Co-Authors: Indra Mohan, Hitesh Panchal, Satyapal Yadav, Shivani BrahmbhattAbstract:ABSTRACTPresent review paper presents an overall summarised presentational view of the research work to be discussed on the Solar Still. The current review paper also includes the infused crisis an...
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experimental investigation on the effect of water mass in triangular pyramid Solar Still integrated to inclined Solar Still
Groundwater for Sustainable Development, 2017Co-Authors: Naveen P Kumar, Hitesh Panchal, Muthu A Manokar, B. Madhu, A E Kabeel, T Arunkumar, Ravishankar SathyamurthyAbstract:Abstract This research primarily concentrates on the use of integrating Solar Stills. Only few researchers have carried out experiments on Still-Still basis for improved yield. In the present novel system the yield of fresh water is improved by integrating inclined Solar Still with triangular pyramid Solar Still. Effect of water depth and flow rate on the yield of fresh water produced from Stills was experimentally investigated. Various water depths such as 0.02 m, 0.04 m, 0.06 m, 0.08 m are maintained in the interior of the basin of pyramidal Solar Still in case of non-integration whereas 0.02 m depth of water is maintained initially and outlet water of inclined Solar Still is fed to the triangular pyramidal Solar Still thereby the water temperature increases which enhances the yield of fresh water. The inclined Solar Still is maintained at constant flow rate of about 8.33 kg/h. Results show that the yield of Solar Still is improved by 79.05% in the case of inclined Solar Still incorporated to triangular pyramid Solar Still. Results also shows that higher water temperature is achieved in the case of inclined Solar Still integrated to triangular pyramid Solar Still at the minimum water depth of dw = 0.02 m.
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various methods applied to Solar Still for enhancement of diStillate output
Desalination, 2017Co-Authors: Hitesh Panchal, Indra MohanAbstract:Abstract Solar Still is not so much attractive in a market due to its lower productivity. Researchers from all around the world have tried to improve diStillate output of Solar Still, but Still, no one has tried Solar Still to put as a commercial product. Hence, there is a lot of scope of research work on the Solar Still. In this present review paper, various research works done by researchers have shown, and three primary methods like use of fin, energy storage materials and multi-basin Solar Still have discussed. All of above methods are crucial for improvement in diStillate output of Solar Still. Fin enhances the surface area of water inside the basin for even distribution of water for increment in diStillate production. Energy storage materials have pore holes to store the hot water and excess energy during sunshine hours and release during off-sunshine hours for the increase in diStillate production. Multi-basin Solar Still uses the latent heat of condensation from lower basin to increase a temperature of the top or middle basin for increment in diStillate production. Hence combination all of above method in the Solar Still, then the Solar Still can be used as a commercial product for potable water in household and industry.
Hamdy Hassan - One of the best experts on this subject based on the ideXlab platform.
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energy exergy exergoeconomic and enviroeconomic 4e evaluation of a new integration of Solar Still with photovoltaic panel
Journal of Cleaner Production, 2019Co-Authors: Hamdy Hassan, Ayman Refat Abd Elbar, Mohamed S YousefAbstract:Abstract In this study, energy, exergy, exergoeconomic and exergoenvironmental (4E) assessment of new integration of Solar Still with photovoltaic module (PV) is performed. This new integration is based on installing the PV module over the back side of the Solar Still while its output electrical power is converted directly to thermal heat to heat the saline water in the basin. The main advantage of such integration is that it does not occupy an extra area more than the land area occupied by the Solar Still. Furthermore, this integration makes the PV as a reflector that transferring its reflected Solar energy to the Solar Still basin. Four systems of Solar Stills are examined and compared; conventional Solar Still (CSS), Solar Still with photovoltaic module (CSS + PV), Solar Still with PV and black steel wool fibers in the basin (CSS + PV + BSWF) and Solar Still with PV used as a reflector only (CSS + PV reflector). The experiments for the proposed systems are conducted in summer season at climate conditions of Alexandria, Egypt. Results indicated that the inclusion of CSS + PV, CSS + PV + SF, and CSS + PV as a reflector in Solar Still enhances the modified Still energy efficiency by 10%, 31.48%, 43.16%, respectively compared to CSS. Whereas, the corresponding value of exergy efficiency is also enhanced by 30.72%, 49.14%, and 680.7%, respectively. The application of PV with Solar Still was found ineffective in terms of energy payback time compared to CSS. Also, the exergoeconomic and exergoenvironmental evaluations of Solar Still with PV indicate promising results compared to those of conventional Still. Overall, using PV as a reflector with Solar Still system is found to be the most effective system from the exergoeconomic and exergoenvironmental perspectives considering the current PV prices and production technologies.
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an experimental work on the performance of single slope Solar Still incorporated with latent heat storage system in hot climate conditions
Journal of Cleaner Production, 2019Co-Authors: Hamdy Hassan, Mohamed S YousefAbstract:Abstract The limit production of freshwater is considered the main problem of Solar Still. So, the objective of this work is studying the performance of single slope Solar Still coupled with phase change materials as a thermal storage unit and its effect on the Still productivity. In view of this, different cases are considered namely, Case 1: Solar Still without phase change material (conventional Solar Still), Case 2: Solar Still coupled only with phase change material attached to the Still base, Case 3: Solar Still with hollow cylindrical pin fins imbedded in the phase change material, case 4: Solar Still with phase change material and steel wool fibers in the Still basin and case 5: Solar Still with only steel wool fibers in the Still basin. The performance of the Solar Still for the five cases is experimentally evaluated and compared to each other's under the same climate conditions of New Borg El-Arab City, Egypt (Longitude/Latitude: E 029°42′/N 30°55′). The results revealed that the presence of phase change material negatively affects the daytime freshwater productivity with a significant increment in the overall freshwater yield of the Still. Also, Solar Still with phase change material-based pin finned (Case 3) achieves the best thermal performance compared to conventional Still (Case 1) and Solar Still with phase change material (Case 2). It is perceived that the total daily cumulative yield of diStillated water of Case 3 is higher than those of case 1 and case 2 by 17 and 7%, respectively. Additionally, placing steel wool fibers in the basin accompanied with phase change material significantly enhances the daytime freshwater productivity with a considerable reduction in overnight productivity and an increase of the overall day productivity. Moreover, using steel wool fibers in the basin with a phase change material based Solar Still (case 4) enhances the total daytime freshwater productivity by 14% with a drop in the overnight productivity by 80%, compared to case 2. Among all tested configurations, case 5 achieves the highest accumulated daily freshwater productivity (approximately 25% an enhancement in the daily productivity compared to case 1) and thermal efficiency with minimum cost.
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experimental study on the effect of coupling parabolic trough collector with double slope Solar Still on its performance
Solar Energy, 2018Co-Authors: Mohamed Fathy, Hamdy Hassan, Salem M AhmedAbstract:Abstract The performance of coupling parabolic trough collector (PTC) with double slope Solar Still is investigated experimentally. The incident Solar energy on the PTC is transferred to the Solar Still by oil pipes connected with finned-piped loop heat exchanger imbedded in the Solar Still. The experiments are conducted at summer and winter times for three systems; conventional Solar Still, Solar Still with fixed PTC and with tracked PTC and for two cases of saline water depth in the basin 20 and 30 mm. The results illustrate that the Solar Still with PTC has higher sill temperature and productivity compared with conventional Solar Still. The freshwater productivity of Solar Still with tracked PTC is higher than that of fixed PTC by about 28.1% and for conventional Solar Still by about 142.3% at saline water depth 20 mm in summer. Freshwater productivity is about 8.53 kg/m2/ day and 4.03 kg/m2/day for Solar Still coupled with fixed PTC in the summer and winter respectively. The results also illustrate that the performance of Solar Still in winter is smaller than summer for all studied cases and systems. In summer and at saline water depth 20 mm, the daily efficiency of the conventional Solar Still, Solar Still with fixed PTC and Solar Still with tracked PTC are 36.87, 23.26 and 29.81% respectively.
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A numerical study on the effect of the heat sink as condenser on the performance of passive Solar Still
2018 5th International Conference on Renewable Energy: Generation and Applications (ICREGA), 2018Co-Authors: Ayman Refat Abd Elbar, Hamdy Hassan, S. OokawaraAbstract:A theoretical work is presented to study the effect of using heat sink as condenser on the performance of passive Solar Still. Single acting Solar Still facing the south with pure saline water is used in this work. During this study, a heat sink of a tip fin is used as a condenser instead of vertical glass plate of the conventional passive Solar Still. The theoretical model of the energy balance equations for each component: the basin water, the cover glass, the basin base and the condenser of the Solar Still were presented. The theoretical model was numerically solved by using MATLAB to assess the temperatures of the various components, the desalinated water productivity, and the system performance. To examine the validity of the model, the numerical results were compared with the available experimental data in the literature. It is found that the numerical results were in close agreement with the experimental data for both the components' temperatures and output productivity. A comparison of the performance of the studied Solar Still and the conventional Solar Still is presented. The results showed that the maximum productivity and efficiency of the Solar Still with heat sink as condenser are 0.8756 kg/m2.hr and 61.72 %, respectively comparing with 0.4305 kg/m2.hr and 30.35% for conventional Solar Still at the same conditions. Additionally, heat sink as condenser increases also the performance of the Solar Still compared to conventional Solar Still.
