Water + Light = Life is a water filter that powers a light.
Joakim and I talked a lot about ideas for this project. Although I would love to create something that truly makes a difference on the grid, I doubt in the next 7 weeks we could design the battery to end all batteries or create the most efficient circuit ever made, but we would like to create something that might make a difference in someone’s life.
Clean water is something many third world countries truly need. I googled water filtration systems and came up with some amazing products. To clean the water there are many different methods. One was a ceramic filter of fired clay with tiny pores that are small enough to remove virtually all bacteria and protozoa. It happens to use gravity. This product made a huge impact in Cambodia for UNICEF.
We also looked up osmosis and a few other filtering methods. One thing that more than one have in common is using gravity to move the water through the filtering process. This made me think of the Gravity Light we talked about in class. The light uses a weight lifted from up high to create the energy needed to power a light source.
What if we used the water coming down from the filter to turn a turbine/motor to power the light instead? That way the same act of pouring water into a lifted container both gives you light and clean water?
Part of me wonders if we should add in a battery so the water could be filtered during the day without powering the light and the power generated would be saved for a later time when the light is needed. My only fear of adding a battery is it might add to the cost. The lower the cost of materials, the more likely this product can be mass produced and used.
At this point our bill of materials is just a few thoughts at best, but here’s a list of what we think we’ll need:
We want to leave this list very loose at the moment because I do not feel we have researched enough to figure out if this project is truly viable for cost.
We have seven weeks to complete this project.