The bottom inner surface of the base unit is painted black. Figure 2 shows the most widely used singleeffect solar still where. Evaluating thermal performance of a single slope solar still. Solaris 2019india renewable energy and sustainable climate 79 feb 2019 performance analysis of single slope solar still augmented with the roller and belt. A single slope solar still design with hemispherical concentrator and hemispherical basin absorber are presented as shown in figures 17 and 18. Solar still is a very simple solar device that is used for converting the available brackish water salt water into potable water. Performance and numerical analysis of single basin solar. In addition, the fresnel lens can aid in improving the overall efficiency of the solar still. Comparative performances of single, double slope solar stills. Solar still is an economical and easy method for production of pure water. After 24hour performance monitoring, a higher yield was observed in the new style of solar still as.
Single slope single basin solar still using fuzzy logic doi. A comparative performance study of double basin single. Solar still is a promising alternative to current desalination technologies owing to its inexpensive operation. Design a small household solar still that can be built by villagers. Pcs are the chemicals which enhances the evaporation rate of water in solarstill in the presence of sunlight without reacting with water and without getting consumed. Single basin double slope solar still with minimum basin depth and energy storing materials. Single slope solar still, cfd introduction now days, lack of drinking water is majour problem in most of the countries. But the distilled of the single basin solar still have very low yield of water. Effect of glass inclination angle on solar still performance. Experimental analysis of single basin single slope acrylic. Heat transfer energy balance model of single slope solar still. Comparative output from newly developed solar still was low but it has several advantages that it is cheapest, cost efficient and easy to clean.
It was observed that when the water depth increases from 0. For the experimentation, two identical single slope double basin solar stills were fabricated with the same basin area. The basin of a typical single slope solar still is transformed to a hemispherical shape. The significance of the design is its ability to be able to optimally function properly by variation of the angle at which solar radiation. In this work, a single basin single slope solar still is integrated with a salt gradient solar pond sgsp to increase the productivity of solar still. Thermal performance of a single slope solar water still. Design of single slope solar still single slop solar still is a commom device which is used from past decades. A one square meter single slope solar water still with solar preheater system was designed and fabricated. The distilled water productivity of the single basin single slope solar still is very low. An experimental study on single basin double slope simulation solar still with thin layer of water in the basin. Abstract this work presents the development of a flexible, efficient, robust and low cost single solar. Theoretical and experimental performance evaluation of single. Principal of heat transfer and energy balance were the governing equations for the operation of single slope solar. Effect of nanofluid in single slope double basin solar still.
Solar distillation offers an opportunity to provide a low. In the present work, single slope double basin solar still performance has been investigated with and without using al 2 o 3 nanoparticles at the location 20. Results shows that there is a 45% reduction in the effect of shadow from the side walls compared to the single slope solar still. This still has been tested under laboratory conditions by using light cotton cloth, light jute cloth, sponge sheet of 2mm thickness and porous materials like washed natural rock. Principal of heat transfer and energy balance were the governing equations for the operation of single slope solar still. Paper open access experimental investigation of single.
Modeling and performance analysis of a single slope tilted solar still were investigated in this paper a computer simulation of the still is carried out. Design and fabrication of a single slope solar still with. Figure 1 shows the isometric view of solar still used for study. Single slope solar still absorbs the thermal energy from sunlight to distillate polluted water into clean water in an enclosed space.
Yadav and tiwari 19 investigated a double slope solar still theoretically and experimentally. Experimental investigations were carried out on two single slope solar stills. Using a wick in still basin decreases active water depth and increases the evaporation rate of basin water. Jordan lies in high solar insolation band and the vast solar potential can be exploited to convert saline water to potable water. Here, we investigate on polystyrene insulation used in single slope passive solar. Although, there are lots of fruitful research article considering the economic analysis of solar still.
Figure 3, the solar still consists of a shallow triangular basin made up of copper sheet instead of g. Water distillation using solar energy system with lauric acid as storage medium, international journal of energy engineering, 1, 18. A double slope single basin solarstill with basin area 1 m2 is used for solar desalination. In the present work, a comparative study of single slope solar still using different wick materials is performed. Performance study of a single basin single slope solar still. Pdf in colombia, there are populations that have wells, public basins and rivers as a source of water supply. The height, length and width of the solar still are shown in.
Performance analysis of single slope solar stills at. Pdf performance analysis of single slope solar still augmented. Analysis of double slope single basin solarstill using. Abstract this work presents the development of a flexible, efficient, robust and low cost single solar still. The single basin single slope solar still was modified by arunkumar et al. Experimental investigation of a single slope solar still using pcm, international journal of research in environmental science and technology, 1, 3033. A characteristic equation of a double slope passive solar still. Experimental attempt was carried out to enhance the solar still productivity by means of agitation effect. A thermal model for predicting the performance of a solar still with. By using the results of published experiments, it is proposed that the heat and mass transfer phenomena from the basin water to the glass cover are coupled. The authors also investigated the thermal performance of the still both experimentally and theoretically, and the influence of cover slope on the daily productivity of the still. May 22, 2014 when inverted type absorber plate was used thermal efficiency of single slope solar still was increased by 7 %. The basin of a typical singleslope solar still is transformed to a hemispherical shape. The performance of the single basin single slope solar still integrated with and without salt gradient solar pond has been analyzed theoretically, numerically and experimentally.
Basin water depth is one of the design and operating parameters that determines the performance of solar still. A singleslope solar still design with hemispherical concentrator and hemispherical basin absorber are presented as shown in figures 17 and 18. The productivity of single basin still was higher than double slope solar still. Also double effect with double basin will increase productivity of still by utilizing latent heat of condensation. Addition of energy storage, exposure materials helps to increase the productivity to some extent.
Heat and mass transfer processes and the performance. In this paper, a modification in design of a single slope solar still is presented and its performance is evaluated in. An experimental work is conducted on a single slope solar still. A comparative performance study of double basin single slope.
Optimization the performance of single basin solar still. Double slope type solar still department of mechanical engineering page 1 maharana institute of technology and sciences gaura, mohanlalganj, lucknow a project report on construction of double slope type solar still submitted in partial fulfillment for the award of the degree of bachelor of technology in mechanical engineering from uttar pradesh technical university, lucknow guided by submitted by mr amit shukla devendra pratap singh lecturer, mech. Utilizing nanofluid as an absorber fluid is an effective approach to enhance heat transfer in solar still device. Now days, lack of drinking water is majour problem in most of the countries. As copper has higher thermal conductivity of 395 wmk comparatively higher than iron, the rate of heat transfer to water in the still is more. Performance evaluation of single slope solar still. Performance correlation for singlebasin doubleslope solar still. The still consisted mainly of a base unit, made from galvanized steel, and a glass cover. The productivity of still in biomass modes were found to be higher than solar mode. The experiments have been conducted on a south facing, single slope, solar still of 30 inclination of condensing cover, in summer climatic condition for 24 h on different five days for different. The aim of this project is to analyze the performance of single basin single slope solar still by using acrylic sheet as casing as it has very. A single basin double slope solar still with basin area 1. S439s450 s441 that the tiltedwick type solar with charcoal cloth as absorbing and evaporating material is good material to be used in the still and the efficiency of the still is about 53% on clear days in summer. There is a strong need to improve the single slope solar still thermal.
In this paper, a modification in design of a single slope solar still is presented and its performance is evaluated in allahabad climatic condition. Bamboo cotton, jute, wool, and cotton are used as wick materials. The bottom inner surface of the base unit is painted black and the inner side walls are painted white. Optimization the performance of single basin solar still with. Economic analysis of single slope single basin passive solar still. Performance enhancement study on single basin double slope. Ebaid1 and handri ammari2 abstract jordan lies in high solar insolation band and the vast solar potential can be exploited to convert saline water to potable water. The investigation was carried out under the open environmental conditions of egypt on a single slope still inclined by 20%. Performance study of a single basin single slope solar. Pdf performance study of a single basin single slope solar. Pdf experimental evaluation of a single slope solar still. Pdf design and fabrication of a single slope solar still with. The single basin double slope solar still is connected with storage tank of the flat plate collector solar water heater i.
Design and performance analysis of a modified vacuum. By using the results of published experiments, it is proposed that the heat and mass transfer phenomena. The basin area of single basin double slope solar still is 1m2and 2m2area of flat plate collector is used. In this study the effect of al 2 o 3 nanoparticle on productivity of sinle slope solar still is analyzed. The most economical and easy way to accomplish this objective is using solar still. A characteristic equation of a double slope passive solar still by using experimental observations for climatic condition. Analysis of double slope single basin solarstill using photo. Modeling and analysis of unsteadystate thermal performance.
The still productivity, distilled water salinity and still performance in term of the still efficiency and. Design, fabrication and testing of a modified single slope. A mathematical model was developed to express these thermodynamics behaviours. For the experimentation, two identical single slope double basin solar stills were fabricated with the. Pdf performance study of a single basin single slope. Thermal description of the singleeffect singleslope condenser solar still.
It was observed that the productivity of the modified still was 17. The thermal performance of the single slope solar still is examined and evaluated through implementing the following effective parameters. Performance evaluation of single slope solar still augmented. These results show that the water mass water depth has an intense effect on the distillate output of the solar still system. Study shows that cfd is a powerful tool for the performance analysis of single slope solar still. Paper open access experimental investigation of single slope. The conversion of raw water to purify water has been done by a double slope solar still system. Thermal performance of a single slope solar water still with. Experimental work is performed for the single slope solar still ssss under climatic conditions of jaipur. Jul 15, 20 among these types are the single slope with passive condenser, double condensing chamber solar still, vertical solar, and conical solar still. Sunlight concentration effect analysis of lenses on single. This system is designed with the aspects of cost, handling, maintenance and its effectiveness. The aim of this project is to analyze the performance of single basin single slope solar still by.
Most of the water resources are under the stage of depletion. When inverted type absorber plate was used thermal efficiency of single slope solar still was increased by 7 %. The lenses and the mirror were proposed to be attached to a basintype singleslope active solar still because of their concentration effect for sunlight. Design and fabrication of a single slope solar still with variable collector angle. The singlebasin singleslope solar still was modified by arunkumar et al. Comparative analyses of the internal variables for single slope and double slope solar stills with time kaisan muhammad usman and sabiu bala muhammad abstractthe effects of internal variables like water temperature, glass temperature and surrounding temperatures with time were studied and compared for both single slope solar still and. Solar stills have been considered as one of the viable options of converting brackish or dirty water into distil water. Among these types are the singleslope with passive condenser, double condensing chamber solar still, vertical solar, and conical solar still. Theoretical and experimental performance evaluation of. Single slope single basin solar still using fuzzy logic. A modified single slope solar still was designed, fabricated and.
Comparative performances of single, double slope solar. A single basin and single slope solar still with the three different low cost basin materials viz. Therefore, three identical simple basin single slope solar stills a, b, and c were constructed and. Single slope solar water still sultan qaboos university. The use of the nanoparticles mixed with black paint. Performance and numerical analysis of single basin solar still integrated with and without salt gradient solar pond ni ni aung a, myat myat soe b adepartment of mechanical engineering, mandalay technological university, the republic of the union of myanmar bdepartment of mechanical engineering, mandalay technological university, the republic of the union of. Experimental evaluation of a single slope solar still. S429s438 hence, for same irradiance conditions, the performance of the still varies place to place and day to day due to the changes in solar aoi and transmittance. Design and performance analysis of a modified vacuum single.
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