Advisement and editing by Dr. Emmanuel Nsofor.


At a time when potable water, fossil fuels, and wood fuels are increasingly scarce, it is more

important than ever to develop methods of purifying water with renewable energy resources.

This report compares the benefits and drawbacks of various models of solar powered water

pasteurizers and solar powered stills. A flow diagram is proposed for a solar powered distillation

system which utilizes phase change material energy storage to extend its productive time.