Atmospheric Water Extractor and Space Cooling Unit

Water is the elixir of life and without it no life can sustain on planet earth. There are many people in the world without access to clean water and are facing ailments of water-borne diseases. A lot of efforts are going on to eradicate potable water shortage but it keeps getting bigger with rapid urbanization and increasing population. The problem is particularly severe in hot and humid climates that have the perfect receipt for extracting water from air using solar energy. In this work the design of potable solar-powered water extracting and space cooling device is discussed. The designed device has the potential to keep running for 20 years through a square meter of photovoltaic solar panel extracting potable water at an average rate of 35 ml/hr @ 60% RH while maintaining the temperature of 2 cu.ft. space between 12-15^oC. The design employed Peltier modules for bringing ambient air to it its dew point. The design was experimentally investigated at different relative humidity and the amount of water generated found to be strongly related to RH though small dependence also is seen with inlet airflow/temperature. The design has the potential to provide water in arid and off-grid conditions particularly reliable during natural disasters. The space cooling part can be used to store important medicines during power grid failure. The use of device reduce strain on conventional potable water supply and create awareness and utilization of abundant solar energy while keeping zero emissions.