Study on the Hydraulic and Energy Loss Characteristics of the Agricultural Pumping Station Caused by Hydraulic Structures

Weixuan Jiao, Zhishuang Li, Li Cheng (), Yuqi Wang and Bowen Zhang
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Weixuan Jiao: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China
Zhishuang Li: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China
Li Cheng: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China
Yuqi Wang: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China
Bowen Zhang: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China

Agriculture, 2022, vol. 12, issue 11, 1-16

Abstract: The pumping station is an important part of the agricultural irrigation and drainage system. The sump is one of the common water inlet types of agricultural pumping stations. In the sump, to facilitate the installation and maintenance of equipment, some hydraulic structures, such as pump beams, maintenance platforms and chest walls, are added to the sump. At present, the impact of hydraulic structures in the sump on the hydraulic performance of the pump device is not clear, so this paper focused on the impact of hydraulic structures on the hydraulic characteristics and entropy generation characteristics of the pump device by using numerical simulation methods. The results showed that the installation of hydraulic structures in the sump has the greatest impact on the efficiency of the pump device. The efficiency coefficient increased after adding a pump beam in the sump and decreased by about 2% after adding a maintenance platform and a water retaining chest wall. Results also showed that the installation of hydraulic structures in the sump will lead to uneven distribution of entropy generation in the sump, especially in the vicinity of the hydraulic structures. The installation of the maintenance platform and chest wall will lead to the increase of the total entropy generation in the sump, which also means that the hydraulic loss in the sump will increase accordingly. Hence, in addition to the pump beam, other structures should be avoided in the sump.

Keywords: agricultural engineering; irrigation and drainage system; pumping station; sump; hydraulic characteristics; entropy production (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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