Experimental investigation of Brackish Water Desalination using a Semi Spherical Solar Still

2018 ◽  
Vol 6 (3) ◽  
pp. 69-75
Author(s):  
Ali A. F. Al-Hamadani ◽  
Mohammed G. Al-Azawyb ◽  
Mohammed Hameed Ghareeb Al Dulfi
Keyword(s):  
Climatic Conditions ◽  
Water Desalination ◽  
Distilled Water ◽  
Water Production ◽  
Solar Still ◽  
Black Paint ◽  
Incident Solar Radiation ◽  
Total Irradiation ◽  
Basin Water ◽  
Better Than

The intensity of radiation reaches 930 W/m2 during April, 2016 in Kut city. Thus this city is suitable to use application of solar energy such as solar still. An experimental study was performed to evaluate the production of Semi Spherical Solar Still (SS-SS) with and without Charcoal. It was measured in the climatic conditions of Kut, Wasit (32o N latitude), Iraq. The still consists of square basin of length 0.3 m and area 0.09 m2 made of Aluminum. The square absorber basin is painted with black paint for maximum absorption of incident solar radiation. It was found that the productivity of Semi spherical solar still without charcoal is better than the using of charcoal at depth of basin water (dbw=1.5 & 2cm). The productivity of SS-SS without charcoal was 2.7 lit/m2 for 6 hours at total irradiation 5935 W/m2. Whereas 2.5 lit/m2 for SS-SS with charcoal at total irradiation 5845 W/m2 for dbw=1.5cm. In addition, the instantaneous efficiency reaches 58% without charcoal and 70% with charcoal at dbw=1.5cm at 3:00PM. The salinity of water before desalination in SS-SS was 999.54 ppm and becomes 4.06 ppm after desalination. It could be concluded that the semi spherical solar still can be used for distilled water production

SIMULATION OF DISTILLED WATER PRODUCTION USING A TRIANGULAR SOLAR STILL － IN CASE OF A PAIKGACHA, A COASTAL AREA OF BANGLADESH －

2019 ◽  
Vol 75 (5) ◽  
pp. I_155-I_163
Author(s):  
Shunya KATO ◽  
Hiroaki TERASAKI ◽  
Tomohiro UMEMURA ◽  
Rei TAKAHASHI ◽  
Teruyuki FUKUHARA ◽  
...  
Keyword(s):  
Coastal Area ◽  
Distilled Water ◽  
Water Production ◽  
Solar Still

scholarly journals Experimental Study of a Tilt Single Slope Solar Still Integrated with Aluminum Condensate Plate

Inventions ◽  
2021 ◽  
Vol 6 (4) ◽  
pp. 77
Author(s):  
Naseer T. Alwan ◽  
Milia H. Majeed ◽  
Sergey E. Shcheklein ◽  
Obed M. Ali ◽  
Seepana PraveenKumar
Keyword(s):  
Water Vapor ◽  
Free Convection ◽  
Water Film ◽  
Climatic Conditions ◽  
Aluminum Plate ◽  
Solar Still ◽  
Glass Cover ◽  
Basin Water ◽  
Typical Day ◽  
The Cost

The low freshwater productivity of a conventional solar still is considered a challenge for researchers due to the high temperature of the glass cover or basin water depth. In current work, a newly designed solar still was suggested according to the climatic conditions of Yekaterinburg/Russia, which included an enhanced condensation and evaporation process by spraying a thin water film on a hot absorber plate and then passing the generated water vapor by free convection over the aluminum plate (low temperature). The distillation system under study was tested during July 2020 and 29 July was chosen as a typical day from 08:00 a.m. to 8:00 p.m. The results showed that the largest amount of water vapor condenses on the aluminum plate (about 46%), and the rest condenses on the glass cover. This means that the aluminum plate effectively improved productivity due to the flow of humid air naturally (free convection) on the aluminum plate (its surface temperature was lower than that of the glass cover). The cost analytical calculations showed that the cost of producing one liter of distilled water from the suggested solar still was 0.063$.

Enhancement in Exergoeconomic and Enviroeconomic Parameters for Single Slope Solar Still by Incorporating N Identical Partially Covered Photovoltaic Collectors

2018 ◽  
Vol 140 (5) ◽  
Author(s):  
Desh B. Singh ◽  
Navneet Kumar ◽  
Sanjay Kumar ◽  
Vijay K Dwivedi ◽  
Jeetendra K Yadav ◽  
...  
Keyword(s):  
Flow Rate ◽  
Water Depth ◽  
Unit Cost ◽  
Climatic Conditions ◽  
Environmental Cost ◽  
New Delhi ◽  
Solar Still ◽  
Monetary Value ◽  
Compound Parabolic Concentrator ◽  
Better Than

This paper deals with the enhancement in exergoeconomic and enviroeconomic parameters for single-slope solar still by incorporating N identical partially covered photovoltaic thermal (PVT) collectors. Three cases: (a) single slope solar still incorporating N identical partially covered PVT flat plate collectors (FPC) (N-PVT-FPC-SS), (b) single slope solar still incorporating N identical partially covered PVT compound parabolic concentrator collectors (N-PVT-CPC-SS), and (c) conventional single slope solar still (CSSSS) have been taken to assess the improvement in various parameters. The various parameters have been computed at 0.14 m water depth, selected values of mass flow rate, and number of collectors considering four climatic conditions of New Delhi for each month of year. It has been concluded that N-PVT-FPC-SS performs best followed by N-PVT-CPC-SS and CSSSS on the basis of exergoeconomic and enviroeconomic parameters; however, CSSSS performs better than N-PVT-FPC-SS and N-PVT-CPC-SS on the basis of productivity measured in terms of ratio of monetary value of output and input. The kWh per unit cost based on exergoeconomic parameter is higher by 45.11% and 47.37%; environmental cost is higher by 65.74% and 90.02%; however, the output per unit input based on productivity is higher by 12.09% and lower by 26.83% for N-PVT-FPC-SS than N-PVT-CPC-SS and CSSSS, respectively.

scholarly journals Performance Improvements of Hemispherical Solar Still Using Internal Reflector: Energy and Exergy Analysis

2021 ◽  
Author(s):  
Mohammed El Hadi Attia ◽  
Muthu Manokar Athikesavan ◽  
Murugan Kaliyamoorthy ◽  
Guruprasad Balachandran ◽  
Syed Jafar Kutbudeen ◽  
...  
Keyword(s):  
Evaporation Rate ◽  
Exergy Analysis ◽  
Distilled Water ◽  
Water Production ◽  
Aluminium Foil ◽  
Solar Still ◽  
Performance Improvements ◽  
Energy And Exergy ◽  
Daily Energy ◽  
Energy And Exergy Analysis

Abstract Various scientists are looking for effective and easy solutions for augmentation of yield from the Hemispherical Solar Still (HSS). In this study, aluminium foil-sheet was used to reflect the intensity hence augments the evaporation rate and daily yield. Experimentations were conducted on two SS: the first SS is HSS; the second SS is HSS with reflective aluminium foil-sheet walls (HSS-RAFW). The highest distilled water production from the HSS, HSS-RAFW are 3.36 and 4.1 kg/m2, respectively. Compared to the HSS, the yield of distilled water was augmented by 22.21% when using the HSS- RAFW. The daily energy and exergy efficiency (EnE and ExE) of the HSS is 26.27 and 1.04%, respectively and daily EnE and ExE of the HSS-RAFW is 32.75 and 1.71%, respectively.

Distillation Cost Calculations of Various Designs of Conventional Solar Still Systems

2008 ◽  
Author(s):  
S. K. Shukla
Keyword(s):  
Performance Evaluation ◽  
Cost Analysis ◽  
Climatic Conditions ◽  
Small Scale ◽  
Distilled Water ◽  
Analysis Method ◽  
Solar Still ◽  
Single Plate ◽  
Cost Calculations ◽  
The Cost

On the basis of experimental results obtained during performance evaluation of five types of solar stills, kept in outdoor conditions on a single plate form, the cost of distilled water produced have been calculated by using a uniform cost analysis method. The experiments were performed at I.I.T. Delhi, India during year 2001–2002 under summer and winter, both the climatic conditions. It can be concluded that the cost of distilled water produced from a multiwick double slope solar still is lesser than other solar stills due to higher yield/hour. However for small scale purposes, multiwick single slope solar still is better option.

scholarly journals An experimental study on small scale sea water desalination unit through solar power in Cox’s Bazar, Bangladesh

2014 ◽  
Vol 11 (1) ◽  
pp. 165-170 ◽  
Author(s):  
MM Islam ◽  
SA Uddin ◽  
Z Islam ◽  
MI Hossain
Keyword(s):  
Experimental Study ◽  
Heat Source ◽  
Sea Water ◽  
Water Desalination ◽  
Small Scale ◽  
Distilled Water ◽  
Solar Still ◽  
Average Amount ◽  
Transparent Glass ◽  
Glass Cover

An experimental small scale desalination system where solar energy as the main heat source was conducted in a remote area of Cox’s Bazar district of Bangladesh. In this investigation, the performance of three solar stills with transparent glass cover was studied. Treated sea water was given to the solar still and the quantity of distilled water from three solar stills was measured per day and the effectiveness of the stills was compared. The performance of these stills was checked for 20 days. The different parameters i.e. ambient temperature, Salinity, pH, Unionized NH3, Iron, NO2-N, Chlorine, DO and amount of distilled water were studied and analyzed. The average amount of water produced by the still (1) was 455 ml, still (2) was 394.75ml and still (3) was 339.25 ml. The total amount of water produced by the still (1) was 9100 ml, still (2) was 7895 ml and still (3) was 6785 ml. The average desalinated water were obtained 1.06 liter/m2/day, 0.98 liter/ m2/day and 0.95 liter/ m2/day from still 1, 2 and 3 respectively. DOI: http://dx.doi.org/10.3329/jbau.v11i1.18229 J. Bangladesh Agril. Univ. 11(1): 165-170, 2013

Cascade solar still for distilled water production

Solar Energy ◽  
1973 ◽  
Vol 15 (3) ◽  
pp. 245-258 ◽  
Author(s):  
O.St C. Headley
Keyword(s):  
Distilled Water ◽  
Water Production ◽  
Solar Still

Experimental Investigation on the Performance of Four Types of Solar Stills in Malaysia

2014 ◽  
Vol 567 ◽  
pp. 56-61 ◽  
Author(s):  
Ali Riahi ◽  
Khamaruzaman Wan Yusof ◽  
Mohamed Hasnain Isa ◽  
Balbir Singh Mahinder Singh ◽  
Amirhossein Malakahmad ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Comparative Research ◽  
Potable Water ◽  
Sand Layer ◽  
Water Production ◽  
Solar Still ◽  
Black Paint ◽  
Tropical Condition ◽  
Solar Distillation ◽  
Sea Sand

This study aims at improving a solar distillation still by comparing the performance of four types of double slope single basin solar stills to produce adequate amount of potable water in the areas with confined fresh water. These solar stills fabricated with similar shapes. In each solar still a stainless steel basin with the length of 50 cm, width of 30 cm and depth of 8 cm was utilized. The still configurations differed based on inclusion of 2 cm depth of sea sand layer in the basin, a layer of black paint in the basin and use of a 50 W PV-DC heater. The study was conducted to increase the potable water production under Malaysia tropical condition. A comparative research of cumulative water production among these solar stills showed that solar still with black painted basin was the more efficient; producing 234 %, 190% and 148% the potable water produced by a conventional solar still, solar still with sand layer in basin and solar still connected to a PV-DC heater, respectively.

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