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Comparative assessment of the inline and branching design strategies based on the compound technique
AQUA - Water Infrastructure, Ecosystems and Society Pub Date : 2021-03-01 , DOI: 10.2166/aqua.2020.065
Ali Triki 1
Affiliation  

The inline or branching water hammer control strategies, which are based on the insertion of compound plastic short-penstock or inline section at the transient-induced region of main pipes, illustrated a promising ability to upgrade steel pipe-based hydraulic systems concerning the extension of admissible pressure level. In this respect, prior results suggested that the specific layout utilizing an (HDPE–LDPE) compound short-penstock (where the (HDPE) sub-short-penstock is attached to the main steel pipe and the (LDPE) sub-short-penstock corresponds to the short-penstock dead-end side) provided significant attenuation of pressure magnitude. Concurrently, recent studies concluded that the (HDPE–LDPE) compound short-section-based inline strategy provided substantial attenuation of pressure magnitude. However, these strategies illustrated a drawback relying on the expansion of the period of pressure wave oscillations. Accordingly, this study assessed and compared the capacities of the compound technique concerning the trade-off between the magnitude-attenuation and the period-expansion of pressure wave oscillations. The findings of these analyses showed that the (HDPE–LDPE) compound short-penstock particular setup of the branching strategy allowed the best trade-off between the attenuation of magnitude and the period expansion of pressure wave oscillations. Furthermore, results showed the competitiveness of the latter upgrading strategy as compared to the (HDPE) or (LDPE) main pipe-based renewed hydraulic systems.



中文翻译:

基于复合技术的内联和分支设计策略的比较评估

基于在主管道的瞬变诱发区域插入复合塑料短管或管道部分的管道或分支水锤控制策略,说明了升级基于钢管的液压系统的有前途的能力允许的压力水平。在这方面,先前的结果表明,使用(HDPE-LDPE)复合短管的具体布局(其中(HDPE)短管与主钢管相连,而(LDPE)短管对应于短油管的死端),前提是压力幅度显着衰减。同时,最近的研究得出的结论是,基于(HDPE–LDPE)复合短节的在线策略可显着降低压力幅度。然而,这些策略说明了依赖于压力波振荡周期延长的缺点。因此,本研究评估并比较了复合技术在压力波振荡的幅度衰减和周期扩展之间权衡取舍的能力。这些分析的结果表明,支化策略的(HDPE–LDPE)复合短油管特别设置允许在幅度衰减和压力波振荡的周期扩展之间取得最佳折衷。此外,结果表明,与(HDPE)或(LDPE)主管道更新液压系统相比,后一种升级策略具有竞争力。这项研究评估并比较了复合技术在压力波振荡的幅度衰减和周期扩展之间权衡取舍的能力。这些分析的结果表明,支化策略的(HDPE–LDPE)复合短油管特别设置允许在幅度衰减和压力波振荡的周期扩展之间取得最佳折衷。此外,结果表明,与(HDPE)或(LDPE)主管道更新液压系统相比,后一种升级策略具有竞争力。这项研究评估并比较了复合技术在压力波振荡的幅度衰减和周期扩展之间权衡取舍的能力。这些分析的结果表明,支化策略的(HDPE–LDPE)复合短油管特别设置允许在幅度衰减和压力波振荡的周期扩展之间取得最佳折衷。此外,结果表明,与(HDPE)或(LDPE)主管道更新液压系统相比,后一种升级策略具有竞争力。这些分析的结果表明,支化策略的(HDPE–LDPE)复合短油管特别设置允许在幅度衰减和压力波振荡的周期扩展之间取得最佳折衷。此外,结果表明,与(HDPE)或(LDPE)主管道更新液压系统相比,后一种升级策略具有竞争力。这些分析的结果表明,支化策略的(HDPE–LDPE)复合短油管特别设置允许在幅度衰减和压力波振荡的周期扩展之间取得最佳折衷。此外,结果表明,与(HDPE)或(LDPE)主管道更新液压系统相比,后一种升级策略具有竞争力。

更新日期:2021-03-09
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