The objective of this project is to design a solar powered density driven flow through water pasteurization system. The system uses solar energy to heat water to 85℃ and hold it at that temperature for at least one minute to kill any harmful microorganisms. The temperature at which the water is heated to is controlled by the height of the spillover point, which is specifically designed with respect to the untreated water reservoir in order to ensure the correct temperature is achieved. The system also features a holding tube, which is designed at a specific length in order to make sure the water is held for the correct amount of time, and a heat exchanger is used to preheat the incoming water with the treated water leaving the system. Using these specifications, a real model was produced and framed which includes all aforementioned features and can be used for future testing.
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