Performance Investigation of Atmospheric Water Generating Device for Hot and Humid Conditions

Despite of the fact that Earth’s atmosphere has abundant freshwater inform of moisture, water scarcity is one of the crucial problems especially in humid, hot, and drought prone regions. The conventional systems which extracts atmospheric water are very bulky, incompatible with the existing system, energy intensive, impractical, low water yield and expensive. These adverse effects hinder their deployment for large scale applications. In this manuscript, a water harvesting device is deigned and fabricated for extracting water from moist air. The device uses vertical copper pipes entrenched in horizontal Al fins as the condensing surfaces. All the components of the device functions on solar powered energy. The proposed device is environment friendly, compact, lightweight, low manufacturing, and maintenance cost. The device generate water with turbidity of 40 PPM. Results shows that condensation rates strongly depend on the relative humidity, saturation temperature of the moist air, and degree of subcooling. In this device, the cost of water is estimated as Rs. 10 per liter. This device is efficient for providing drinkable water in hot and humid, water scare regions globally.