Experimental analysis of the water consumption effect on the dynamic behaviour of a real pipe network
Experimental analysis of the water consumption effect on the dynamic behaviour of a real pipe network
复制标题
耗水量对实际管网动态行为影响的实验分析
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
M. Franchini
中科院分区：
文献类型：
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作者：
V. Marsili;S. Meniconi;S. Alvisi;B. Brunone;M. Franchini
摘要本文介绍了Gorino Ferrarese（费拉拉，意大利）供水系统动态特性的监测和分析结果。该网络受到普通操作条件的影响（即不考虑泵或阀门的操作），目的是表明用户需求可能会产生频繁且不可忽略的压力变化。在管网的不同部分监测了两天的压力和流量。然后，通过在时域和频域中分析测量部分处的压力变化来表征系统的动态行为。这种分析强调，压力信号的特点是长期的变化（低频），较短的周期（高频）的重叠。长期振荡在所有测量部分都显示出类似的趋势，其特征是某些主频率，与网络的拓扑和机械特性有关。相反，与用户活动相关的高频压力波动在空间和时间上都在幅度上变化。
ABSTRACT This paper presents the results of the monitoring and analysis of the dynamic behaviour of the Gorino Ferrarese (Ferrara, Italy) water distribution system. The network is subjected to ordinary operational conditions, (i.e. no manoeuvres on pumps or valves are considered), the aim being to show that user demand may generate frequent and not negligible pressure variations. Pressure and discharge were monitored for two days in different sections of the network. The dynamic behaviour of the system is then characterized by analysing the pressure changes at the measurement sections in the time and frequency domains. Such analyses highlight that pressure signals are characterized by long-term changes (low-frequency) on which shorter period (high-frequency) ones overlap. Long-term oscillations show a similar trend at all measurement sections and are characterized by certain dominant frequencies, linked to the topological and mechanical characteristics of the network. Instead, high-frequency pressure fluctuations related to user activity vary in amplitude both spatially and temporally.