Performance Assessment of Wheel Move and Linear Moving Irrigation Systems in Different Climatic Conditions
محل انتشار: فصلنامه علوم و مهندسی آبیاری، دوره: 44، شماره: 2
سال انتشار: 1400
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 155
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شناسه ملی سند علمی:
JR_JISE-44-2_002
تاریخ نمایه سازی: 12 مهر 1400
چکیده مقاله:
The use of sprinkler irrigation systems have been significantly expanded over the last decades in Iran. Among the sprinkler irrigation systems, solid set systems have recently aroused much attention. However, fewer studies focused on the performance of mechanized sprinkler systems such as wheel move (WM) and linear moving system (LM). In this research, LM system and six WM systems were evaluated under two different climatic conditions, so that ۱۲ and ۸ field assessment tests were conducted for the WM and LM systems, respectively. Three indicators including Christiansen's uniformity coefficient (CU), distribution uniformity of low quarter (DUlq), and application efficiency of low quarter (AELQ) were used to describe the performance of the selected irrigation systems. As for WM systems, the calculated CU averages were ۷۷.۹% and ۶۴.۷% for low and high wind speed conditions, respectively, and also the number for LM system shown to be ۸۱.۷% and ۷۲.۳%, respectively. Regarding the same conditions, the AELQ averages for WM systems were seen to be ۵۹.۹% and ۳۸.۶%, respectively, and for LM system were ۷۰.۲% and ۵۴.۳%, respectively. The increase in the wind speed led to a reduction in water distribution uniformity, and however, wind effect on the performance of the WM systems was more than the LM system. Thus, it deserves to be pointed out that the LM system is an appropriate option compared to the WM system in various climatic conditions. Water pressure, sprinklers distance, and irrigation program were identified as the other factors, affecting the performance of sprinkler irrigation systems.
کلیدواژه ها:
نویسندگان
Zeinab Bigdeli
Ph.D. Candidate, Department of Water Engineering, University of Tabriz, Tabriz, Iran
Hasan Ojaghlou
Assistant Professor, Department of Water Science and Engineering, University of Zanjan, Zanjan, Iran.
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