Fabricated solar still a blackened tray is placed at the base of the solar still which acts as a black body to absorb the incident heat. Pdf design and analysis of solar still researchgate. The goal of this project is to create a solar powered water distillation device that achieves maximum efficiency while minimizing manufacturing costs per unit. Distil water with a solar purifier in this science project. The solar option and solar collector solar energy is a very large, inexhaustible of energy, the power from the sun intercepted. Solar water purification science fair projects ideas and sample projects by grade level. Purchasing a water distiller from the store or online can be pricey. Like the natural hydrological cycle, the sun drives the process of purification. Solar desalination modular solar panels solar water. In order to improve the productivity of a solar still of hotbox type, l.
Solar water distillation is the process of using the energy from sunlight to separate freshwater from salts or other contaminants. I only drink distilled water and it has changed my life. But these sources do not always prove to be useful due to the presence of excessive salinity in the water. After intensive research and testing, f cubed developed the world leading low cost and environmentally friendly carocell solar distillation technology. The conventional passive solar still is the most economical solar still to provide drinking water for domestic applications at decentralized level.
A schematic diagram of typical basin type solar still is shown in figure 1. One common use for a solar collector is to provide residential hot water, but they can also provide warm air for home heating or. Cherrared 7 carried out a systematic comparison between a simple solar and solar water heater still. Rays from the sun heat up the salty water in the bowl. Solar water distillers or solar stills are usually used in remote areas where there is limited access to freshwater. Manual on the construction and installation solar heater made of disposable packaging turn trash hot water prepared by. The basic principles of solar water distillation are simple, yet effective, as distillation replicates the way nature makes rain. A project report on solar still submitted in partial fulfillment for the award of the degree of bachelor of technology in mechanical engineering from rajasthan technical university, kota session 2012 guided by. They are used in areas where drinking water is unavailable, so that clean water is obtained from dirty water or from plants by exposing them to sunlight. Watch this video to learn how to turn salt water into drinking water. We see that the solar distilled water costs much less than bottled water and somewhat more than utility supplied water. The technology is simple in design and use and is discribed by simple pictograms.
Build your own with a good set of instructions and a few easytofind materials. Purifying water using passive solar water distillation. The updated suns river solar still operated with nighttime recovery of distillate from. The solar still process uses the sun instead of other sources such as fossil fuels to gain the energy needed for purification. Build and test a solar powered device for desalinating water and investigate how the color of the bottom of the device affects its efficiency. Solar water purification and distillation science fair projects and experiments. Solar distillation is another application which dates back to the nineteenth century and the simplest form of water still now in use is basically unchanged from the early designs which consisted of a shallow tray, filled with salt or brackish water, and covered by a sloping glass cover plate. How to make a solar still dont buy plastic jugs of distilled water when you can convert it from undrinkable water with this diy project. A project report on solar still submitted in partial fulfillment for the. 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. However, in order for the household solar still to be a viable source of water the yield needs to increase. The carocell panels provide clean, drinkable water with no ongoing expense and requiring.
This is a solar alembic, or pot still, made from square foot mirrors, which can produce between 2 and 5 ounces of distillate on a lazy sunny afternoon. Solar collectors are devices that capture the suns heat to perform tasks, as opposed to photovoltaic panels that use the suns light. Single slope solar still, cfd introduction now days, lack of drinking water is majour problem in most of the countries. Solar distillation an overview sciencedirect topics. Most of the water resources are under the stage of depletion. A solar still distills water using energy from the sun. Passive solar water distillation is an inexpensive, lowtech alternative for pure drinking water without bottles, including types of distillers, cost comparisons, going automatic or electric. Installation of the subsystem and its controls is simple, and since the collectors can be used throughout the year, the payback on. This project is not really expensive and lots of you can make this at home too. Solar still,a water purifying technique project report. The still consisted mainly of a base unit, made from galvanized steel, and a glass cover. Were here to help you navigate stem learning at home while schools are closed due to covid19.
The following design considerations and testing suggestions aim to address this issue. Pdf solar stillsolar water heater hybrid for small scale application. We are hoping this can be done after time is spent developing a more efficient solar still that produces more than we were able to with our design. The untreated water is placed into a still basin which absorbs heat, eventually reaching high temperatures, causing the water to evaporate, cool and condense into vapour, leaving the contaminants in the underlying basin. Humankind has depended for ages on underground water reservoirs for its fresh water needs. It was found that an active solar still with water flow over the glass cover gives the maximum yield. Solar stills solar still is possibly the oldest method of desalination of water. According to the obtained results, one can conclude that water temperature has an impact on the daily production of the still. Eliodomestico is a solar household still for the developing countries.
Fabrication of solar water distillation system ijcem. Solar distillation of water florida solar energy center. Single slope solar water still sultan qaboos university. Ive posted here about the square foot solar cooker, and here is another of the many uses for it. Carocell solar desalination purification technology. Build a solar water distiller whether you need water for your iron or water to drink, this project is easy and inexpensive and can be scaled up as needed. Solar stills for desalination of water in rural households. A broad classification of the solar stills is depicted above. Construction and installation of water heater builditsolar. Solar stills are then able to supply pure water for drinking and cooking, even in areas where.
A one square meter single slope solar water still with solar preheater system was designed and fabricated. The bottom inner surface of the base unit is painted black and the inner side walls are painted white. Modification and operation of a full solar distillation desalination. Pdf design and construction of solar stillsolar water heater. The sun evaporates dirty water which is then cooled and collected in pure form. Diy solar projects 10 solar water heating sitebuilt airheating collectors that are tilted are a natural for domestic water heating in addition to their primary space heating function. How to build a solarpowered still to purify drinking water. Build a solar water distiller diy alternative energy. Solar still,a water purifying technique project report slideshare.
Solar water distillation safe drinking water foundation. This is due to the fact that it is simple in design and fabrication, easy to handle unskilled manpower is sufficient along with longer life, and low cost of water. Build your own diy water distiller to use in an emergency or when no water is available. In this paper, the fabrication of seven solar still designs such as spherical solar still, pyramid solar still, hemispherical solar still, double basin glass solar still, concentrator coupled single. I have been wanting to do this project for some time now. Pdf in this communication, an attempt has been made to find out the effect of. Solar still construction from pbs learningmedia zoom activities a solar still distills, or purifies, water by turning saltwater into fresh water using the sun and gravity. Eliodomestico is an open project, free to the people who need it.
Water that is not properly treated or filtered can contain all types of harmful compounds. 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. In my project i am constructed both black and white coated solar stills and find out the coating. Solar still,a water purifying technique project report 1. A solar still is an artificial water purifier that imitates the natural mechanism used by nature to purify water. You cant see it well in the picture, but the white line at the back of the still is a door, which flips down to allow the water pans to be placed inside it. In addition the project examined the performance of the still when heated both by solar energy and by an external source of heat supplied continuously in the form of hot water. When the water gets warm, it evaporates and becomes a gas. The project involves designing and fabricating a solar still which can produce sufficient amount of distilled water on a daily basis to cater to the needs of lead acid.
A solar still is a green energy product that uses the natural energy of the sun to purify water. Solar water purification and distillation science fair. Bee, 2010 detailed project report on solar water heating system lpd textile sme cluster, solapur, maharashtra india. Solar still is an economical and easy method for production of pure water. The solar distiller should be able to provide a small family with two to four gallons of drinking water per day. A solar still distills water with substances dissolved in it by using the heat of the sun to evaporate water so that it may be cooled and collected, thereby purifying it. But, made correctly, a homemade water distiller is just as dependable as a storebought one. To make a solar still of this type, youll need to make a box out of plywood. The great thing about this project is that it would be useful to know how to do in nature if you had no fresh water to drink or in an emergency situation.
The input of this device would be salt water from coastal regions. Use energy from the sun to experiment with solar cooking. Solar still, minimum depth of water, design, analysis. The condensed water from the glass is collected in a pipe placed at an inclination which enables the collected water 4. There are many amazing diy water distiller designs you can easily make at home. The solar water distiller is a relatively new comer.
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