Abstract : The goal of the COOL Water Purification Project is to make potable water using two sources of energy. For everyday use, the mechanism uses wind as a renewable energy source. Additionally, a human powered prototype was constructed and tested for the 2007 ASME Design Competition. Both cases convert mechanical power to electric power through the use of a generator. Electric current is run to a heating element located in the contaminated water, transferring heat, causing it to boil. The evaporated water leaves behind 99.9% of contaminants in the boiler producing mostly uncontaminated vapor. The water vapor created then condenses through a concentric tube heat exchanger and the result is potable water. The system will efficiently transmit heat to the water and all components of the device will be cost efficient and require minimal maintenance.
? Existing water treatment processes include desalination plants, reverse osmosis water treatment plants, and household water purifiers.
? There are many water filtration products in existence today. However, none of these products fully satisfy the needs of families in rural areas with a lack of clean drinking water.
? Three ideas for the stand included a square based stand that would be very similar to the stands that exist on the Loma roof, a triangular based stand with weights on all three corners, and a pole mounted to one of the preexisting structures on the roof.
? The pole mounted to a preexisting structure would be very easy to construct and it would be strong enough to withstand the force requirements of the wind mill stand.
? The smaller household filters can usually only filter out certain strong smells and tastes, trivial problems for any family.
? Desalination plants might become essential to the world’s potable water problem in the future because they allow us to take water from the ocean, extract the salt content, and produce potable water.
? Many problems arise when considering heat transfer equations that deal with phase changes.
? The only problem with the wiring was it was not very flexible and it was very difficult to move through the stand when the windmill was raised.
• The proposed system will be competitive in the world market and most practical for non-industrial sized applications.
• The purpose of this project is to design and manufacture a small scale water purification system which requires minimal maintenance and is cost efficient.
• The spiral design saves space and still creates some flexibility for construction purposes.
• The main purpose of the heat exchanger is to provide a tube long enough for the water vapor to give off the heat necessary to condense the vapor and turn it into a liquid.
• This rate was found to be too high for the intended purpose of receiving minimal heat input over a long period of time.
? The temperatures along the heat exchanger, and water output flow rates can be collected and analyzed to quantify the overall performance of the COOL Water Purification Project.
? The system will be simple, cost efficient, and require minimal maintenance.
? The system will efficiently transmit heat to the water and all components of the device will be cost efficient and require minimal maintenance.
? The purpose of this project is to design and manufacture a small scale water purification system which requires minimal maintenance and is cost efficient.
? This data shows the windmill model is much more efficient (because a human would probably drink more water than they would produce) and much more productive.
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