Parameters affecting solar still productivity

In this work, investigation of the main parameters affecting solar still performance under the weather conditions of the Suez Gulf area is considered. Four solar still units are designed and constructed to operate under the same weather conditions with different design parameters. A general equation is developed to predict the daily productivity of a single sloped solar still. The developed equation relates the dependent and independent variables which control the daily productivity. This equation could be used to predict the daily productivity with a reasonable confidence level (maximum error ±5%).