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Steady state algorithm for leak diagnosis in water pipeline systems ?

机译：用于输水管道系统泄漏诊断的稳态算法 ？

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This work proposes an algorithm for leak diagnosis in pipelines based on a steady-state analysis. The motivation of this proposition arises from the fact that often leaks appear in specific locations in water pipeline systems, namely in between two consecutive pipeline stretches (junctions), according with experience of the staff of a real water distribution network. By dismissing other kind of leaks (as leaks in oil pipelines) for which other considerations must be taken into account, this work is focused to the most normal events of leaks in water pipeline systems, and here, the leak diagnosis problem is reduced to identify the junction where the leak occurs. To do that, a steady-state expression is obtained from the classical Water Hammer equations and it is used to compute a drop pressure head between the pipeline ends for each junction. Then this estimation is compared with the one computed by using the pressure head measurements. Finally for each case a residual can be generated and the junction position that produces a residual closer to zero is finally identified as the leak location. The main advantage of this proposition is that the uncertainties in the leak location are not longer important, i. e., the leak location can be given with an exact position as long as the configuration of the pipeline (possibly located underground) is well known. For sake of illustration, some examples are provided via simulations.
机译：这项工作提出了一种基于稳态分析的管道泄漏诊断算法。该提议的动机来自这样一个事实，即根据实际配水网络的工作人员的经验，经常在输水管道系统的特定位置出现泄漏，即在两个连续的管道延伸之间（连接处）。通过消除必须考虑其他因素的其他类型的泄漏（如输油管道中的泄漏），这项工作将重点放在输水管道系统中最正常的泄漏事件上，在这里，减少了泄漏诊断问题，以识别发生泄漏的路口。为此，可以从经典的Water Hammer方程获得稳态表达式，并将其用于计算每个结点的管道末端之间的压头。然后，将该估计值与使用压头测量值计算出的估计值进行比较。最终，对于每种情况都可以产生残留物，并且将产生接近零的残留物的接合位置最终标识为泄漏位置。该建议的主要优点是泄漏位置的不确定性不再重要，即例如，只要已知管道的配置（可能位于地下），就可以给出准确的泄漏位置。为了说明，通过仿真提供了一些示例。

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