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Article

A Novel Surge Damping Method for Hydraulic Transients with Operating Pump Using an Optimized Valve Control Strategy

by 1,2,3, 1,2, 1,2, 3 and 1,2,*
1
School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China
2
Shaanxi Key Laboratory of Energy Chemical Process Intensification, Xi’an 710049, China
3
Department of Building Environment and Energy Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
*
Author to whom correspondence should be addressed.
Academic Editors: Helena M. Ramos and Kamil Urbanowicz
Water 2022, 14(10), 1576; https://doi.org/10.3390/w14101576
Received: 6 April 2022 / Revised: 8 May 2022 / Accepted: 10 May 2022 / Published: 14 May 2022
(This article belongs to the Special Issue About an Important Phenomenon—Water Hammer)
Hydraulic transients may pose a critical threat to process operation due to devastating surge waves. This paper investigates hydraulic surge and damping control associated with pipe flow modeling and valve optimization. A one-dimensional transient model was developed using the modified instantaneous accelerations-based (IAB) model, considering energy dissipation, referred to as the compression–expansion effect, which was then solved by the Method of Characteristics (MOC). Analogous to solving valve operation by means of the traveling salesman problem (TSP), a novel surge damping strategy was proposed by applying an improved artificial fish swarm algorithm (AFSA). After validating the unsteady model and the optimization algorithm, wave surge damping effectiveness was evaluated on the basis of case studies in different pump running scenarios. The results showed that the proposed nonlinear optimized control method was able to reduce surge amplitude by 9.3% and 11.4% in pipe systems with and without running centrifugal pump, respectively, and was able to achieve a 34% time margin or a maximal 75.2% surge reduction in the case of using an positive displacement pump. The optimized nonlinear valve closure presents different shapes in fast closing and slow closing situations. The strategy proposed in the present study is beneficial for guiding valve real-time control, as well as providing a reference for valve design for the purpose of wave surge protection. View Full-Text
Keywords: unsteady friction model; surge damping; compression–expansion effects; pressure wave; energy dissipation unsteady friction model; surge damping; compression–expansion effects; pressure wave; energy dissipation
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MDPI and ACS Style

Cao, Z.; Xia, Q.; Guo, X.; Lu, L.; Deng, J. A Novel Surge Damping Method for Hydraulic Transients with Operating Pump Using an Optimized Valve Control Strategy. Water 2022, 14, 1576. https://doi.org/10.3390/w14101576

AMA Style

Cao Z, Xia Q, Guo X, Lu L, Deng J. A Novel Surge Damping Method for Hydraulic Transients with Operating Pump Using an Optimized Valve Control Strategy. Water. 2022; 14(10):1576. https://doi.org/10.3390/w14101576

Chicago/Turabian Style

Cao, Zheng, Qi Xia, Xijian Guo, Lin Lu, and Jianqiang Deng. 2022. "A Novel Surge Damping Method for Hydraulic Transients with Operating Pump Using an Optimized Valve Control Strategy" Water 14, no. 10: 1576. https://doi.org/10.3390/w14101576

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