Improving drip irrigation uniformity by boosting the hydraulic performance of drip lateral pressure regulators

doi:10.25165/j.ijabe.20241706.8277

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	Improving drip irrigation uniformity by boosting the hydraulic performance of drip lateral pressure regulators
	Wang, Xiaoran 1,2; Zhang, Chen 3; Li, Guangyong 2
	2024-12
发表期刊	INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING
ISSN	1934-6344
卷号	17 期号:6 页码:185-192
摘要	Compared with the use of expensive pressure-compensating drip tapes, installing pressure regulators (PRs) at the inlet of cost-effective non-pressure-compensating drip tapes is obviously a more economical technology to achieve precision agriculture. However, most drip lateral PRs may not meet the requirements of the design and use of complex drip irrigation systems (hilly or large-scale systems), and there is seldom research on their application in drip irrigation systems, both restricting the promotion of this precision agriculture technology. In this paper, two types of PRs (A- and B-type) for complex drip irrigation systems are proposed, and compared with two conventional PRs (C- and D-type) under 9 different pressure and flow conditions of the drip irrigation system. The main advantage of A- and B-type PRs over conventional PRs is that their outlet pressures are scarcely affected by inlet pressure and flow. Therefore, A- and B-type PRs not only cope with large submain pressure differences, but also guarantee irrigation uniformity CU up to 90% in drip irrigation systems with different drip-tape lengths (flow range: 350-1400 L/h), while CU can be lower than 80% under the same conditions without PRs or using conventional PRs. When designing drip irrigation systems, the use of A- and B-type PRs can allocate greater pressure deviation to the laterals (hv2) to increase the lateral laying length, thus further reducing pipeline network investment. Under the requirements of maximum pressure deviation hv <= 40% and submain pressure deviation hv1 <= 20%,the results of hv2 with A-, B-, C-, and D-type PRs were 30%-35%, 30%-37%, 33%-35%, and 21%-27%, respectively. This research provides a device and method that can improve the irrigation uniformity of drip irrigation systems across a wider application range. Based on this research, users can reasonably select the PRs according to different design standards, significantly enhancing the irrigation uniformity of the system in a cost-effective manner.
关键词	microirrigation pressure regulator engineering application irrigation uniformity drip tape
其他关键词	COST
DOI	10.25165/j.ijabe.20241706.8277
收录类别	SCIE
语种	英语
资助项目	China Institute of Water Resources and Hydropower Research [MK2021J10]; China Agriculture Research System of MOF and MARA [CARS-03-43]; Open University of China Youth Research Project: Research of the synergistic control mechanism of microirrigation submain and lateral pressure/flow regulator [Q23A0009]
WOS研究方向	Agriculture
WOS类目	Agricultural Engineering
WOS记录号	WOS:001382776500001
出版者	CHINESE ACAD AGRICULTURAL ENGINEERING
原始文献类型	Article
EISSN	1934-6352
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.library.ouchn.edu.cn/handle/39V7QQFX/174292
专题	国家开放大学
通讯作者	Li, Guangyong
作者单位	1.Open Univ China, Sch Engn, Beijing 100039, Peoples R China; 2.China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China; 3.Minist Water Resources PR China, Inst Water Resources Pastoral Area, Hohhot 010020, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiaoran,Zhang, Chen,Li, Guangyong. Improving drip irrigation uniformity by boosting the hydraulic performance of drip lateral pressure regulators[J]. INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING,2024,17(6):185-192.
APA	Wang, Xiaoran,Zhang, Chen,&Li, Guangyong.(2024).Improving drip irrigation uniformity by boosting the hydraulic performance of drip lateral pressure regulators.INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING,17(6),185-192.
MLA	Wang, Xiaoran,et al."Improving drip irrigation uniformity by boosting the hydraulic performance of drip lateral pressure regulators".INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING 17.6(2024):185-192.