PERFORMANCE ASSESSMENT OF ADELE MIRT METEJA SOLAR POWERED WATER SUPPLY SCHEME, SODDO DISTRICT, ETHIOPIA
Assessing the hydraulic performance and solar power fitness for rural water supply scheme is important for the proper implementation the water supply scheme at Adele Mirt Metaja. This study presents the performance of solar powered water supply scheme to the hydraulic demand of Adele Mirt Meteja water supply system. This paper used water supply network data and multi-year sunshine hour data (2006-2015) to evaluate the hydraulic performance of the water supply system and the energy required for
... nergy required for the study area. WATERGEMS Software was used to model the system and evaluate the hydraulic parameters of the water supply scheme at the study area. Angstrom-Prescott model is used to convert sunshine hour data to solar radiation. Water users committees were made to understand customers' satisfaction towards the water supply and there is customer's complaint towards continuous access of water due to power interruption especially during rainy season since the solar power system depends on the availability of sunlight. The Typical performance of the panel is at solar radiation 800 W/m². Based on the result obtained from WATERGEMS, it is observed that there is variation in water pressure, velocity as related with the standards limit. The pressure is from 6m-62meter. The Head loss from the flex table for the pressure main is 33,405m/km. The higher the head loss is the higher velocity in which the diameter for the pressure main is small in diameter. From this result it can be concluded that there is head loss in pressure main line which requires serious attention as it was observed physically during site visit. Therefore it is important to adjust the pipe size accordingly. Otherwise the project could not be functional after two or three years later due to high pressure on the GI pipe. From the result obtained in demand-supply analysis for water, there is enough amount of water for the demand community for the project lifetime.