الفهرس 
Effect of temperature on PV cell performanceOnly 14 pages are availabe for public view
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Abstract
The experimental work was carried out at a private farm in Nubariah city, Al Buhayrah Governorate, Egypt, which located at latitude and longitude angle of 30.07°N and 30.33°E, respectively, during Jan to Dec, 2016.The experiments were evaluated the performance of solar powered pump on a drip irrigation system. The photovoltaic water pumping system performance, parameters such as sun tracking orientated facing south direction and tilt angle, horizontal and 30˚, head pump, solar radiation. on the study indicator such as electric power output of panel, panel efficiency, discharge of pump, daily number of operating hours of pump and hydraulic power.The results showed that, the discharge of water pump increased from 33 to 39 m³/h when solar radiation increased from 622 to 812 W/m² at constant of operating water head 30m and tilt angle of 30˚, the discharge of water pump increased from 32 to 38 m³/h when solar radiation increased from 243 to 527 W/m² at constant of operating water head 30m and horizontal plane on 17 January, 2016. When the operating water head change from 30 to 50 m the discharge of water pump decreased from 33 to 24.5 m³/h on 17 January, 2016. PV efficiency decreased from 18.7 to 16.5% when the temperature increased from 19 to 25°c on 17 January, 2016. The hydraulic power increased from 2.7 to 3.2 KW when the discharge increased from 33 to 39 m³/h on 17 January, 2016. The discharge of water pump increased from 31.5 to 36 m³/h when the solar radiation increased from 811 to 1020 W/m² at constant of operating water head 35m and tilt angle of 30˚, the discharge of water pump increased from 30 to 34 m³/h when the solar radiation increased from 720, to 949 W/m² at constant of operating water head 35m and horizontal plane in 21Auguest, 2016. When the operating water head changed from 30 to 50 m the discharge of water pump decreased from 32 to 26 m³/h on 21Auguest, 2016. PV efficiency decreased from 18 to 16.2 % when the temperature increased from 30 to 34°c on 21Auguest, 2016. The hydraulic power increased from 3 to 3.6 KW when the discharge increased from 31.5 to 37.5 m³/h on 21Auguest, 2016. This study recommended that using pump powered by solar energy in drip irrigation system at the large area under the experimental conditions.