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العنوان
PERFORMANCE EVALUATION OF LANDSCAPE IRRIGATION SYSTEM WORKING USING SOLAR ENERGY \
المؤلف
Al-Ahwal, Rofida Hatem Mohammed Rashed.
هيئة الاعداد
باحث / رفيده حاتم محمد راشد الاحول
مشرف / محمود محمد حجازى
مشرف / اسامة محمد احمد بدير
مشرف / محمد هويدي محمود
تاريخ النشر
2021.
عدد الصفحات
103 P. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة الزراعية وعلوم المحاصيل
تاريخ الإجازة
1/1/2021
مكان الإجازة
جامعة عين شمس - كلية الزراعة - الهندسة الزراعية
الفهرس
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Abstract

Experiments were performed at a private garden in Al-Qaddbah, Al-Gharbia Governorate, Egypt. The latitude and longitude of the experiment site were 30°56’37’’N and 30°47’01’’ E, respectively, and the altitude was 5 m, at the 2019 season. The total landscape area (13.5m x 9m) was divided into six treatments each of (20.25 m2). Three plots were operated using solar system while the other three plots were operated using electric system. The irrigation systems were similar as the main and lateral pipelines was P.V.C 32 mm, four multi-stream sprayers, (90◦) with nozzle discharge of 0.08 m3/h, at the head of 17 m, average precipitation rate of 12 mm/h, the sprayers’ filters of 150 µ and the distance between the sprayers was (4.5*4.5 m) with 100% overlap. All the plots were planted with turfgrass (Passpalm10) with domestic water in sandy loamy soil, while the specifications of the solar pump used was of a discharge of 1.02 m3/h, pressure of 2.8 bar and power of 144 watts and the electric pump was at a discharge of 1.56 m3/h, pressure of 3 bar and power of 375 watts. The obtained results showed, at solar energy powered system, uniformity coefficient increased from (65% to 75%) at operating time (10 – 30 min), then it decreased during the operating time (40 - 60 min). While, at electric energy powered system the averages of the uniformity coefficient were (76% - 80%), at operating time (10 - 40 min), while at operating time (45 - 60 min) the uniformity coefficient decreased to (75%) due to the fine sand clogging in the sprayers’ filters. The energy saving reached (63%) with solar energy operation rather than electric energy operation in the summer season. The least total cost was (351 L.E/m2/year) at the landscape area (A3 60.75m2), which was irrigated on three cycles per day to give the highest uniformity coefficient (75%),and operated with the solar batteries at full charge 3 - 4 times for a plot area of (20.25 m2). The hydraulic power obtained was (17.86 – 26.74 W), the turf quality index was higher using electric motor rather than solar motor.