Problem Definition Review. Power System for the Better Water Maker 14418. Agenda. Introduce Team Project Background Problem Objectives and Statement Use Scenarios Prioritized List of Customer Needs Engineering Requirements Draft of Project Plan
Power System for the
Better Water Maker
1st Rendition- Senior design team P11412, 2010
2nd Rendition- Senior design team P13417, 2012
Our Team- Senior design team P14418, 2013
RIT’s MSD Program
People living in developing nations
Project Goals and Deliverables
Key Design Drivers
Much of the water available to people in developing nations is non-potable. This leads to disease and death; especially among children in these areas. The “Better Water Maker” water-disinfecting system was developed to alleviate this issue. Currently, the design makes use of a hand-crank and flywheel setup to generate 17 Watts of power. The power is used to pump water to a disinfecting chamber, and to light the UV bulb which disinfects it. This system costs between $300 and $400. Although the water purification process is acceptable, the power generation process has proven to be difficult and tiring to the end users: women and children. It is this team’s goal to decrease the amount of effort required to run the unit. We expect that it will be possible to do this either by increasing efficiency of the current hand crank design or by redesigning the power-generating portion of the unit. We also intend to decrease the cost of the product to make it more accessible. Through utilization of off-the-shelf components, we aim to produce a device that costs around $150. Through testing and benchmarking, we will deliver a prototype which is fun and easy for the end user. The redesign will preserve many features that exist on the current device, including operational-directive lighting, compatibility with 12V car batteries, and the entire water-conditioning process. The result will be a prototype which can be mass-produced more cheaply and easily than the current design and which encourages use by introducing an element of play, decreasing the amount of effort needed to run it, and through inclusion of simple but complete instructions.
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