Powered Water Pumping System Research Articles

Design and installation of solar photovoltaic powered water pumping system at Usmanu Danfodiyo University, Sokoto

The paper presents the outcome of the powering of a conventional a.c. type water pump by photovoltaic (pv) solar modules which were 28 in number connected 7 in series giving a total of 4 parallel strings. An assesment of the system, which provides water to the University Mechanical Workshop and a nearby village, shows that the system has been operating continously since October 1993 and on average 20 m 3 of water is pumped daily at average solar radiation level of 5kWh/m 2/day.

Impact of Some Technical Factors and Meteorological and Operational Conditions on PV Generator Size for Water Pumping

Abstract A photovoltaic (PV) powered water pumping system with water storage facility is being investigated with respect to some technical, meteorological, and operational conditions. The impacts of the pump efficiency, the electrical efficiency of the driving system, solar intensity, ambient air temperature, minimum and maximum water storage, and load variation on the PV generator size were studied. The study used a computer program based on the optimal sizing method investigated by the author. The system under consideration is intended to be used initially at Giza, Egypt (30 deg. longitude, 30 deg. latitude). The results showed that changing the pump efficiency from 20° to 35° will reduce the generator size from 15 to 8.6 kW peak, while changing the electrical efficiency of the pump drive system from 55° to 90° will change the generator peak power from 15.5 to 10 kW. Changing the minimum storage capacity from 250 m3 to 2,500 m3 will reduce the generator size from 10.84 to 10 kW, while changing the maxim...

Detailed analysis for photovoltaic powered water pumping systems

Abstract In this work a model for each element as well as their interactions have been developed,[1–9]. The problem of obtaining the characteristics of the pump at different speeds beginning from the normally given nominal speed curve is explained. The power loss in the pump and motor are regarded in the model. The case of surface pumping from a river (constant head) has been considered too. The DC permanent magnet motor is selected due to its higher efficiency. A detailed example has been given to explain how to use the model. The DC permanent magnet motor centrifugal pump group is proved to be suitable for direct coupling with PV array in both cases of variable and fixed heads.

Performance matching and optimization of wind powered water pumping systems

A procedure is presented which allows optimum selection of pumps and windmills for a given water pumping situation. When information on the wind, pump characteristics and windmill characteristics is available, the best pump and windmill for the application may be selected, and the design and off-design performance of the complete system may be predicted.