Novel solar driven cooling system integrated with solar still system
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Novel integrated solar cooling and solar distillation system is introduced to meet the high cooling and fresh water demands in hot and arid regions such as Qatar. The system is composed of a solar-driven ejector cooling system coupled with a single-slope solar still. The introduced novel system is the first study that integrates two solar systems for cooling and water production with outputs significantly higher than any existing system. The results show that the productivity of the solar still is improved by enhancing the evaporation rate (using heating coil) and by increasing the condensation rate (using cooling coil). Simultaneously, this improved the COP of the ejector system by increasing its entrainment ratio with a slight increase in the required solar collector area. The performance of four different scenarios of integration between the proposed cooling and distillation systems is investigated. The results showed that the productivity of the still is five times higher than that of the conventional solar still. The annual produced water considering the hourly variation of the radiant flux was 5067 kg/year, which is 5.7 times more than the conventional systems. The estimated cost of one-liter distilled water per 1 m2 area of the present solar still is $0.04, which is only 18% of the water cost of other still technologies.
- Theme 1: Energy, Environment & Resource Sustainability [109 items ]
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