Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Improved Model for Contaminant Intrusion Induced by Negative Pressure Events in Water Distribution Systems
AbstractUntreated water can intrude into water distribution systems through pipe cracks and/or openings when negative pressure events occur inside drinking water pipelines. It is important to determine the magnitude of the possible intrusion event. To estimate the intrusion flow rate more accurately, the effects of surrounding soil must be considered. In this paper, an analytical relationship is derived by combining the seepage in soil and the flow through an orifice for predicting the intrusion flow rate for a circular orifice under steady-state conditions. The effect of the pipeline on reducing the flow area is incorporated in the model. An experimental study that simulates a buried pipeline was carried out to validate the accuracy of the improved model, and the analytical results fit well with the experimental results.
Improved Model for Contaminant Intrusion Induced by Negative Pressure Events in Water Distribution Systems
AbstractUntreated water can intrude into water distribution systems through pipe cracks and/or openings when negative pressure events occur inside drinking water pipelines. It is important to determine the magnitude of the possible intrusion event. To estimate the intrusion flow rate more accurately, the effects of surrounding soil must be considered. In this paper, an analytical relationship is derived by combining the seepage in soil and the flow through an orifice for predicting the intrusion flow rate for a circular orifice under steady-state conditions. The effect of the pipeline on reducing the flow area is incorporated in the model. An experimental study that simulates a buried pipeline was carried out to validate the accuracy of the improved model, and the analytical results fit well with the experimental results.
Improved Model for Contaminant Intrusion Induced by Negative Pressure Events in Water Distribution Systems
Yang, Yan (Autor:in) / Liu, Weichao / Zhu, David Z / Zhang, Tuqiao / Guo, Shuai
2016
Aufsatz (Zeitschrift)
Englisch
Dynamic Water-Quality Simulation for Contaminant Intrusion Events in Distribution Systems
| Online Contents | 2016
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| Wiley | 2013
Dynamic Water-Quality Simulation for Contaminant Intrusion Events in Distribution Systems
| British Library Online Contents | 2016
Dynamic Water-Quality Simulation for Contaminant Intrusion Events in Distribution Systems
| Online Contents | 2016