چكيده به لاتين
According to water resources in the world, fresh water supply is one of the most important issues facing the global community. The purpose of this research is to design, build and develop a portable and small device that can supply drinking water to people in hot and humid areas. This device consists of 4 Thermo-electrics, two Heat-Sink, each with 9 fans with a total area of 0.0496 , which is the same level of density for air vapor, 2 inlet cooling blocks and an inlet fan. Thermo-electrics are cooled by 20L of water at 23 and then water at 17 . The reason for the 6 decrease in water temperature is to investigate the effect of decreasing the cooling water temperature on the amount of water produced by the device. If the temperature difference between these two cooling water is less than 5 , it will not change much in the amount of water produced; therefore, in the tests, a temperature difference of 6 between these two cooling water is considered. In this system, hot and humid air is directed into the duct by a fan, and this air is cooled by cold Thermo-Electric and Heat Sink surfaces; water vapor in the air condenses into water droplets: the water produced can be used for food. The parameters of dry temperature, relative humidity, inlet air flow and the amount of water produced were investigated and the effect of changes in each of the inlet parameters on the amount of water produced was investigated. At a temperature of 30 , a relative humidity of 95%, a mass rate of 0.011 (equivalent to an air velocity of 11.6 into the cold channel), an input power of 199.2W, and with 17 cooling water for hot Thermo-Electric surface; the water produced by the device is equal to 111.73 , which is 2 . Numerical simulation also results in a 2.7 , which confirms empirical work. The COP of the devise is 1.02. In the current study, unlike the previous study, instead of air, water has been used to cool the Thermo-electrics, which increases the efficiency of the system by 5 to 20% (ratio of water production to power consumption) compared to similar work. This shows that the system in Current work, with the same power consumption used in previous work systems, produces 5 to 20% more water than they do. The cooling system in the present work is circular and closed, and there is no need to replace water in the system. The closed cooling cycle has not been seen at all in previous studies and is the first time it has been used in a research project: this has resulted in significant water saving and has enabled systems that use water for cooling to be economically viable and usable in all areas. In the current study, due to the closure of the cooling cycle, a small aluminum radiator has been used to lower the temperature of the Thermo-Electric cooling water, causing the water produced by the device to increase by up to 2% in some tests. Dry and cold air coming out of the stop was also used and there was no need to install a separate fan for the radiator, which saved 12% of the power consumption of the device.
