Low Cost Solar Water Desalination Environmental Sciences Essay

confused Cost Solar weewee supply Desalination Environmental Sciences EssayAbstract- This search paper covers different types of low toll solar piddle desalinisation techniques. This paper also describes methods for solar piddle desalinisation functioning at large(p) scale with less speak to.Keywords- solar pee desalination, sea- irrigate desalination, brackish piss desalination, low cost urine desalination, water purification.IntroductionOur world consists of 97.2% water but this water is not in useable form.1 This water lot be usable if it institutes meliorate. Purification of sea water is very pricey task. This paper describes methods to reduce cost of this purification operation which are shortly used by different countries.Solar water desalinationWater desalination is the process in which we purify seawater or brackish water and make it useable.Solar water desalination is the process in which we purify seawater or brackish water through solar energy and m ake it useable for drinking.Fig. 1 Solar water desalination process2Ambient energy transcriptionWorkingIn this system, energy essential for condenser and evaporator is generated through solar panels. This technology is suitable for model villages. The prefatory idea in this technology is that fix the solar panels on the hood of each house. Connect these panels with heat pump that generates electricity. This heat pump is thus connected to the evaporator and condenser. Sea water is then pumped in evaporator and condenser. afterwards this process we get gratifying water that can be stored in tankful.Fig. 2 Ambient energy system for water desalination.3CostThis system is implemented in most of the countries. Its average cost is US$ 1.8/m3.3solar STILL PLATE DISTILLATIONWorkingThis method can normally be use at home as shown in fig.3. In this method, flat solar still is used. This system is not suitable for large amount of desalination. As you can see in fig.3 in which fresh wate r is getting store in a glass. In this process water is passed through the surface of flat solar still and by sunlight these plates get heated and then water get boil. This water is store from the lower side of solar still. One 120 cm long and 60 cm wide with a collector vault of heaven of 0.7 Sq. m solar still plate can desalinate 2.5 3.5 litres of water in a day. 4 solar still can purify 10 12 litres of water in a day which is abounding for single family.CostThis desalination process is very cheap and its cost is Rs.300 per litre production.4Fig.3 Flat plate solar distillation4Simple sea water desalination plantWorkingIn this system, spherical shaped tank is used which is made up of solid glass. firstly connect spherical tank and beginning tank through pipe. Connect the pilfer of the reservoir tank with the cooling system so that vapours can again convert into liquid state. Cooling system is not necessary it depends on the temperature of surrounding area. The working of th is process is that fill the spherical tank with sea water. Filled spherical tank behaves like a big, solid and coercive convex lens. This convex lens impart focus on a single point with its specific alignment to the sunlight. Water will get boil after some time because of continuous heating. Then water will change its state from liquid to vapour state. These vapours will move towards the reservoir tank and the cooling system at the top of reservoir tank will again change the state of water from vapour to liquid. This liquid is purified water and can be use for cursory purposes.Fig.4 Simple sea water desalination5CostThe cost of this system depends on the size of sphere. The sphere with capacity of storing 5 litres water is costs Rs. 1500.5decisivenessThese are the different techniques that can be used for low cost water desalination. As far as reduction in groundwork cost, PVC pipes can be used instead of cement pipes.It is recognize from the study that ambient energy can be us ed for water desalination in temperate climates. In hotter countries where there is more solar energy available, the potential for using the technology to produce low-cost desalination systems is even more significant.Solar still plate distillation process can be build at the roofs of the houses. Like windmill at the roof of house, this desalination process will work fine.Simple sea water desalination plant is also suitable for hot areas as it also requires sunlight to boil the water.