A single slope basin type solar still has been designed and fabricated. The basin of a typical singleslope solar still is transformed to a hemispherical shape. Sep 16, 2006 an experimental work is conducted on a single slope solar still. The still is provided with a dripping arrangement to pour saline water drop by drop in the basin. International journal of mechanical engineering and technology ijmet, issn 0976. The height, length and width of the solar still are shown in figure 1.
Solar still is an economical and easy method for production of pure water. Analysis of double slope single basin solarstill using photo. Design and fabrication of a single slope solar still with. The still is modified to include preheating solar system, to preheat saline water before entering the solar still, in order to enhance its hourly or daily yield of pure water. Performance study of a single basin single slope solar still. This inexpensive device can easily be built using local materials. Experiments were conducted for different water depths in basin. Recently, researchers presented various studies comprised many parameters that affect the operation of the single slope solar still basin type to enhance its performance and increasing the productivity. Experimental attempt was carried out to enhance the solar still productivity by means of agitation effect. S429s438 hence, for same irradiance conditions, the performance of the still varies place to place and day to day due to. Solar still is a very simple solar device that is used for converting the available brackish water salt water into potable water. The basin area of single basin double slope solar still is 1m2and 2m2area of flat plate collector is used.
Pdf design and analysis of solar still researchgate. Introduction drinking water is still a big problem in most arid and remote areas. A solar still is efficient and attractive application of renewable energy solar in the distillate production. This article focuses on the single sloped basin type of solar still. Theoretical and experimental performance evaluation of. 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. The shape of the cover of topmost basin may also differ pyramid triple basin pyramid solar still, flat and angled single slope double basin solar still.
Icmiee18331 productivity enhancement of single basin solar. To reduce glass cover temperature the outer glass was cooled by using sprinkler manually at regular interval. A single slope solar still design with hemispherical concentrator and hemispherical basin absorber are presented as shown in figures 17 and 18. Pdf experimental analysis of single basin single slope finned. An experimental study on single basin double slope simulation solar still with thin layer of water in the basin. They found that the production rate is a complex function of water, glass and the difference. Evaluating thermal performance of a single slope solar.
Experimental work is performed for the single slope solar still ssss under climatic conditions of jaipur. A singleslope singlebasin solar still with an inner basin size of 1. Solar stills aston publications explorer aston university. A single basin and single slope solar still with the three different low cost basin materials viz. Energy and exergy analysis of single slope single basin. A characteristic equation of a double slope passive solar still by using experimental observations for climatic condition. In this work, the experimental modification was carried out in the single basin single slope solar still to improve the performance. Experimental investigations were carried out on two single slope solar stills. Two experimental stills of the same basin area will be fabricated and will be tested the performance of double basindouble effect single slope solar still. Pdf a single basin and single slope solar still with the three different low cost basin materials viz. Experimental analysis of single basin single slope acrylic. Improving the productivity of the single basin solar still. Effect of heat capacity of basin water on the daylight and overnight productivities. The outcomes clearly suggest that, there is no significant difference between the distillateof still a efficiency of 42% and still b efficiency of 39%.
Energy and exergy analysis of single slope single basin solar. An experimental work is conducted on a single slope solar still. Experimental setup a schematic of the solar still fabricated in the current. Experimental attempt was carried out to enhance the solar still productivity by.
Heat transfer energy balance model of single slope solar still. Design and fabrication of a single slope solar still with variable collector angle. Performance correlation for singlebasin doubleslope solar still. Investigation of a singlebasin solar still with deep basins. 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 myanmar. An effort is also made to find the effect of condensing cover material on the performance of. Allahabad abstract in the present work a single slope single basin solar still was designed fabricated, and its performance was tested in the allahabad climatic conditions. The thermal performance of the single slope solar still is examined and evaluated through implementing the following effective parameters. Effect of nanofluid in single slope double basin solar still. Evaluating thermal performance of a single slope solar still. Performance study of a single basin single slope solar.
In this work, the solar still with different basin materials viz. In this work, the experimental modification was carried out in the single basin single slope solar still. Single basin double slope solar still with minimum basin depth and energy storing materials. Experimental study of an integrated single basin solar. Figure 3, the solar still consists of a shallow triangular basin made up of copper sheet instead of g. The basin of a typical single slope solar still is transformed to a hemispherical shape. Single basin double slope solar still, solar energy, active techniques, etc. The daily thermal and exergy efficiency of double slope were recorded to be higher as compared with single slope solar still.
Impact of materials and economic analysis of single slope. Experimental and theroretical evaluation of double slope. Asymmetrical solar still with various basin materials. Performance of singleslope singlebasin solar still with. 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. A single basin double slope solar still with basin area 1. Furthermore, the results obtained for the two single slope solar stills were analyzed using a statistical model a paired t test. Theoretical and experimental performance evaluation of single.
Effect of glass inclination angle on solar still performance. Dec 21, 2019 furthermore, with increase in water temperature the productivity was enhanced by 45% as compared to the css. Experiments were performed in the new mexico region. The still has been provided with a dripping arrangement to pour saline water drop by drop into the basin. An experimental study on single basin double slope simulation. Yadav and tiwari 19 investigated a double slope solar still theoretically and experimentally. This paper compares the performance of single basin single slope solar still with and without water nanofluid. A singleslope solar still design with hemispherical concentrator and hemispherical basin absorber are presented as shown in figures 17 and 18. Single slope solar still, cfd introduction now days, lack of drinking water is majour problem in most of the countries.
Single slope single basin solar still was fabricated using 0. 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. Aug 22, 2018 the number of basins may vary two basins double basin solar still, three basins triple basin 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. Performance study on single basin single slope solar still. Various solid and liquid sensible heat storage materials, evaporative surface materials are used in the form of billets, in the still. The first unit is a conventional singleslope singlebasin solar still css, which is used as a base unit and is completely synchronized. They maintained a thin layer of water in the basin by placing many types of wick materials. For a 30 inclination of the window glass cover, the required height of the other vertical side was 0. I sheet and tested with different water depths of 2,3,4cm. Abstract this work presents the development of a flexible, efficient, robust and low cost single solar still.
Single basin solar still is a valuable solution for this problem. Icmiee18331 productivity enhancement of single basin. Factoring in the health costs of contaminated water, payback for a solar still can be immediate. 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. The bottom inner surface of the base unit is painted black and the inner side walls are painted white. A modified single slope solar still was designed, fabricated and. Solar distillation offers an opportunity to provide a low.
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. Experiments were performed in the new mexico region 32. Single slope solar water still sultan qaboos university. Conducted a seasonal performance analysis for six di erent water depths in a single slope passive solar still of cover inclination of 30. Pdf performance analysis of single slope solar still augmented. The year round performance of the still in a particular place is mainly affected by the variations in transmittance of the covers and solar irradiance on the covers.
The productivity and efficiency of solar still at water depth 0. Single slope single basin solar stills provided with different quantities of bees wax is compared with conventional solar still i. For double basin single slope solar still, still with reflectors, flat plate collector and the mini solar pond is the finest design with productivity improvement of 127. With a reasonable investment of capital cost, basin solar still is capable to produce a. The system has been tested with dripping of saline water. Comparison of different solar still on productivity was also analysed, and it is seen that the yield is higher in the present study by 38. Design and performance analysis of a modified vacuum. Comparative analysis on freshwater yield from conventional. The basin materials are taken according to the low cost that is easily. Design, fabrication and testing of a modified single slope.
Design, fabrication and testing of a modified single slope solar still 1. The influence of cover slope on the daily productivity of the still was investigated. Most of the water resources are under the stage of depletion. The still consisted mainly of a base unit, made from galvanized steel, and a glass cover. The use of the nanoparticles mixed with black paint increases the temperature of the solar still basin. Solar distillation is the cheapest way to clean water for a household and is quite economical as compared to reverse osmosis and electric distillation. Results shows that there is a 45% reduction in the effect of shadow from the side walls compared to the single slope solar still. Convection, radiation, evaporation and condensation process took place in solar still operation with consideration of critical parameters identified as the slope. The first unit is a conventional single slope single basin solar still css, which is used as a base unit and is completely synchronized. Design a small household solar still that can be built by villagers. Design and performance analysis of a modified vacuum single. Performance and numerical analysis of single basin solar. A solar still is a device that produces clean, drinkable water from dirty water using the energy from the sun. Thermal performance of a single slope solar water still.
Pdf performance study of a single basin single slope solar. Pdf shortage for potable water exists in many countries even though. Comparative output from newly developed solar still was low but it has several advantages that it is cheapest, cost efficient and easy to clean. Pdf performance study of a single basin single slope.
The single basin double slope solar still is connected with storage tank of the flat plate collector solar water heater i. A thermal model for predicting the performance of a solar still with. Figure 1 shows the isometric view of solar still used for study. Optimization the performance of single basin solar still with corrugated wick surface at high places talal k. Optimization the performance of single basin solar still.
A double slope single basin solarstill with basin area 1 m2 is used for solar desalination. This type of still is capable of producing clean potable water from available brackish or. Heat transfer coefficients and productivity of a single slope single. A one square meter single slope solar water still with solar preheater system was designed and fabricated. In the present work a single slope single basin solar still was designed fabricated, and. Edeoja, investigation of the effect of angle of cover inclination on the yield of a single basin solar still under makurdi climate, int. Water nanofluids of aluminum oxide al 2 o 3, zinc oxide zno, iron oxide fe 2 o 3 and tin oxide sno 2 of different concentrations were characterized for thermal and physical properties and suitable nanofluids were selected for performance testing in solar still. A point focusing fresnel lens was used in the experiments to enhance the solar input. Single basin passive solar still further categorize based on different designs and configurations as shown in the fig. The heat transfer energy balance model for single slope solar still is applied based on the heat transfer process from the basin of solar still, to the water in basin, glass cover and finally released to the surrounding. This paper presents a detailed comparison of the theoretical and the experimental results obtained for a single sloped basin type solar still. May 22, 2014 factoring in the health costs of contaminated water, payback for a solar still can be immediate. Two dsss with single basin and dou ble basin made of glass have been fabricated by elango.
Kassem department of mechanical engineering, college of engineering, taif university, taif, saudi arabia abstract in this work two single slope solar stills have been designed and constructed from materials. Solar still is made by gi sheet and cover of solar still is made by clear glass. Single slope single basin solar still using fuzzy logic doi. Analysis of double slope single basin solarstill using.
Two experimental stills of the same basin area will be fabricated and will be tested the performance of double basin double effect single slope solar still with and without nanofluid simultaneously. Single slope single basin solar still using fuzzy logic. Performance enhancement study on single basin double slope. The number of basins may vary two basins double basin solar still, three basins triple basin solar still. Comparative performances of single, double slope solar. Basin stills can be categorized in many forms, however the single slope and double slope solar stills are very popular 1. As copper has higher thermal conductivity of 395 wmk comparatively higher than iron, the rate of heat transfer to water in the still is. The distilled water productivity of the single basin single slope solar still is very low.