Enhancement of Productivity on Double Slope Single Basin Solar still by Flat Plate Collector and Sponge

2015 ◽  
Vol 813-814 ◽  
pp. 690-694
Author(s):  
J. Prabahar ◽  
Thangavel Balusamy ◽  
Varghese M. John
Keyword(s):  
Solar Radiation ◽  
Flat Plate ◽  
Natural Resource ◽  
Pure Water ◽  
Hard Water ◽  
Solar Still ◽  
Living Thing ◽  
Solar Distillation ◽  
Flat Plate Collector

One of the essential needs of a living thing on earth is the pure water and nowadays this valuable natural resource is facing severe scarcity problems. Solar distillation is a better choice to minimize this problem by harvesting solar radiation in solar still and thereby producing pure water from hard water or brine. In this work, an attempt was made to enhance the productivity of still by flat plate collector, sponge, the combination. Finally, the productivity of the simple still was compared with that of a flat-plate collector, sponge, the combination. Use of flat plate collector and sponge increases the overall temperature of the still water and enhance the evaporation respectively thereby this will improve the condensate production of the solar still. It was observed that productivity increased by 14% in case of still with a collector, 10% for still with a sponge and 17% for still with collector sponge combination when compared with simple still.

scholarly journals A Review of New Solar Still Design Comprising a Five-Sided Glass Cover and Equipped with an External Tank for PCM

2021 ◽  
Vol 877 (1) ◽  
pp. 012038
Author(s):  
Abbas Sahi Shareef ◽  
Hayder Jabbar Kurji ◽  
Hassan Abdulameer Matrood
Keyword(s):  
Melting Point ◽  
Phase Change ◽  
Solar Collector ◽  
Phase Change Materials ◽  
Review Paper ◽  
Pure Water ◽  
Solar Still ◽  
Glass Cover ◽  
Solar Distillation ◽  
Change Material

Abstract Various human activities have led to the consumption of large quantities of pure water, which has led researchers to find efficient and economical methods for desalinating seawater and water containing impurities. In this review paper, solar energy where it is permanent, abundant and environmentally friendly, to produce pure water was discussed using a new solar distillation device, representing the paper’s novelty. The distillation was designed and used in the way led to increase efficiency and improve productivity by adding a solar collector to the system and equipped with a tank containing phase change material (PCM). It has a low melting point and can change the phase by absorbing the system’s latent heat to maintain the system’s temperature. Which contributes to increasing the distillation period even after sunset, thus increasing the daily productivity of freshwater. Using phase change materials will increase distillation hours from (3-4) hours after sunset, increasing the amount of production between (75 - 90) %.

scholarly journals AUGMENTATION OF SOLAR WATER DISTILLER PERFORMANCE WITH PV/T

2020 ◽  
Vol 5 (1) ◽  
pp. 46-52
Author(s):  
Nguyen Viet Linh Le ◽  
Tri Hieu Le ◽  
Thi Minh Hao Dong ◽  
Van Vang Le ◽  
Dinh Tung
Keyword(s):  
Solar Collector ◽  
Solar Photovoltaic ◽  
Solar Still ◽  
Photovoltaic Panel ◽  
Water Distillation ◽  
Solar Water ◽  
Photovoltaic Modules ◽  
Solar Distillation ◽  
Distillate Yield ◽  
Flat Plate Collector

Recently, due to global warming and urbanization, there are many major cities that may face the challenge of day zero next decades. Obviously, water is an indispensable component for maintaining life on the earth. Although portable water is required of the hour, the quantity of available freshwater is impacted significantly by sea-level rise and pollution from industrialization. As a consequence of the global water crisis, different methods for clean water production from brackish water have been studied and developed in practice, however, the solar distillation of water is the most economical and desirable approach due to this method utilize solar energy that is the environmentally friendly and economical resource. Over the last 15 years, the impressive price drop of the photovoltaic solar collector (PV/T) makes them popular and easy to access. As a result, the employment of PV/T in solar stills is emerging as a potential device for water distillation. Therefore, in this paper, an active solar distiller combined with a photovoltaic panel has been reviewed for improvement of the distillate yield and effectiveness of solar photovoltaic. This review work presents a variety of studies on various types of solar still (for example conventional solar still (CSS), double slope solar still (DSSS), stepped solar distiller, and cascade solar still) couples with different solar water collectors (such as flat plate collector (FPC) and evacuated tubes collector (ETC)) and solar photovoltaic modules. It is obtained that the hybrid PV/T active solar still improves the distillate yield, energy efficiency, and exergy efficiency as compared to passive mode. The cooling method enhances the performance of the photovoltaic solar collector as well as the productivity of solar still. Moreover, the environmental economic estimation reveals that the solar still coupled with the PV/T mitigated considerably the amount of CO2. It can be stated that it is suitable to commercialize the hybrid PV/T active solar still for supplying not only electricity but drinking water also. Finally, this review paper also suggests the scope for the research in the future.

scholarly journals Experimental and theoretical investigations of traditional solar still productivity in cold climatic

2021 ◽  
Vol 2119 (1) ◽  
pp. 012096
Author(s):  
Naseer T. Alwan ◽  
S E Shcheklein ◽  
O M Ali
Keyword(s):  
Experimental Data ◽  
Solar Radiation ◽  
Potable Water ◽  
Ambient Air ◽  
Solar Still ◽  
Solar Distillation ◽  
Theoretical Investigations ◽  
Weather Parameters ◽  
Theoretical Results ◽  
Acceptable Agreement

Abstract Solar distillation is an important technology to get potable water from saltwater using clean and free solar energy. In the current study, an experimental and theoretical investigation of a single-slope traditional solar still was carried out, and the freshwater productivity and thermal efficiency were evaluated for four typical days (19/06, 17/07, 22/08, and 15/09) of 2019 by implementing temperature parameters in different points of the solar still, and the weather parameters such as solar radiation, and ambient air temperature. The study showed an acceptable agreement between the experimental and theoretical results with an average of 6.6% measured deviation of the experimental data. It was noticed that the highest values of productivity were recorded on July 17, 2019.

Characteristic Equation Development for Single-Slope Solar Distiller Unit Augmented With N Identical Parabolic Concentrator Integrated Evacuated Tubular Collectors

2019 ◽  
Vol 142 (2) ◽  
Author(s):  
Rajeev Kumar ◽  
Rahul Sharma ◽  
Dharmendra Kumar ◽  
Ajay R. Singh ◽  
Desh B. Singh ◽  
...  
Keyword(s):  
Flat Plate ◽  
Characteristic Equation ◽  
Energy Input ◽  
Mean Value ◽  
Energy Output ◽  
Net Energy ◽  
Solar Still ◽  
The Mean ◽  
Flat Plate Collector ◽  
Basin Area

Abstract In this communication, characteristic equation for single-slope solar still augmented with N alike parabolic concentrator integrated evacuated tubular collectors has been developed which is also valid for N alike evacuated tubular collectors integrated single-slope solar distiller unit as well as passive single-slope solar distiller unit. The developed equation is similar in the form to Hottel-Whillier-Bliss equation which was developed for flat plate collector. The analytical equation development for the proposed system involves the writing of equations for its different components on the ground of equating net energy input to net energy output. The results obtained for the proposed system have been compared with the results of N alike evacuated tubular collectors integrated single-slope solar distiller unit and passive single-slope solar distiller unit. It has been concluded that the mean value of instantaneous efficiency for N alike parabolic concentrator integrated evacuated tubular collectors is higher by 42.86% and 50.82%; daily generation of freshwater is higher by 49.73% and 74.34%; and daily exergy is higher by 78.71% and 93.35% than the corresponding values for N alike evacuated tubular collector integrated single-slope solar distiller unit and passive single-slope solar distiller unit for the same basin area in that order.

Energy and Exergy Analysis of Marquise Shaped Channel Flat Plate Solar Collector Using Al2O3–Water Nanofluid and Water

2019 ◽  
Vol 141 (4) ◽  
Author(s):  
Sahil Arora ◽  
Geleta Fekadu ◽  
Sudhakar Subudhi
Keyword(s):  
Flat Plate ◽  
Flow Rate ◽  
Volume Fraction ◽  
Pure Water ◽  
Maximum Energy ◽  
Working Fluid ◽  
Absorber Plate ◽  
Energy And Exergy ◽  
Aluminum Plates ◽  
Flat Plate Collector

The present study deals with the experimental performance of a Marquise shaped channel solar flat-plate collector using Al2O3/water nanofluid and base fluid (pure water). The experimental setup comprises a special type of solar flat plate collector, closed working fluid systems, and the measurement devices. The absorber plate is made of two aluminum plates sandwiched together with Marquise-shaped flow channels. The volume fraction of 0.1% of Al2O3/water nanofluid is used for this study. The various parameters used to investigate performance of the collector energy and exergy efficiency are collector inlet and outlet fluid temperatures, mass flow rate of the fluid, solar radiation, and ambient temperature. The flow rate of nanofluid and water varies from 1 to 5 lpm. The maximum energy efficiencies attained are 83.17% and 59.72%, whereas the maximum exergy efficiencies obtained are 18.73% and 12.29% for the 20 nm—Al2O3/water nanofluids and pure water, respectively, at the flow rate of 3 lpm. These higher efficiencies may be due to the use of nanofluids and the sophisticated design of the absorber plate with the Marquise shaped channel.

Relation between Collector Efficiency Factor and the Centre to Centre Distance of Absorber Tubes of Solar Flat-Plate Collector

2014 ◽  
Vol 592-594 ◽  
pp. 2404-2408 ◽  
Author(s):  
Sunita Meena ◽  
Chandan Swaroop Meena ◽  
V.K. Bajpai
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Flat Plate ◽  
Special Kind ◽  
Radiation Energy ◽  
Efficiency Factor ◽  
Energy Gain ◽  
Absorber Plate ◽  
Collector Efficiency ◽  
Flat Plate Collector

Solar energy collectors are a special kind of heat exchangers that transform solar radiation energy to internal energy of the transport medium. The major component of any solar system is the solar collector. This is a device which absorbs the incoming solar radiation, converts it into heat, and transfers this heat to a fluid (usually air, water, or oil) flowing through the collector. The measurement of the flat plate collector performance is the collector efficiency. The collector efficiency is the ratio of the useful energy gain to the incident solar energy over a particular period of time. The useful energy gain is strongly depends on the collector efficiency factor and this factor directly influenced by few parameters i.e. the centre to centre distance of absorber tubes W , thickness of absorber plate δ and heat loss coefficient UL. This paper has been focused on the relation between W with collector efficiency factor of serpentine tube solar flat-plate collector. This study shows that if we increase the W then Fˈ decreases.

An experimental investigation on a solar still with an integrated flat plate collector

Desalination ◽  
2014 ◽  
Vol 347 ◽  
pp. 131-137 ◽  
Author(s):  
T. Rajaseenivasan ◽  
P. Nelson Raja ◽  
K. Srithar
Keyword(s):  
Experimental Investigation ◽  
Flat Plate ◽  
Solar Still ◽  
Flat Plate Collector

Effects of Aspect Ratios on Average Daily Solar Energy Collection for Different Flat-Plate Collector Arrays in Winter Months

2013 ◽  
Vol 368-370 ◽  
pp. 1228-1231
Author(s):  
Fen E Hu ◽  
Sheng Xian Wei ◽  
Neng Bang Hou
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Aspect Ratio ◽  
Flat Plate ◽  
Solar Collector ◽  
Radiation Model ◽  
Aspect Ratios ◽  
Solar Radiation Model ◽  
Flat Plate Collector

A solar radiation model to determine solar energy collection on solar collector array with different aspect ratios has been developed. The relations between the aspect ratio and the average daily solar radiation collection on the collector array have been deeply studied. The results show that there is an optimum aspect ratio to maximize the solar energy collection on the collector arrays. The optimum aspect ratios of the 1000 m2 collector array for Haikou, Kunming, Lhasa and Beijing are 10/1, 1/3, 5/1 and 10/1.The optimum aspect ratios of 1000 m2, 500 m2, 200 m2 and 100 m2 collector arrays for Kunming are 1/3, 3/1, 7/1 and 1/5, respectively.

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