Design and performance evaluation of a simplified dynamic model for combined sewer overflows in pumped sewer systems

JOURNAL OF HYDROLOGY

卷:538

Article

van Daal-Rombouts, Petra^1,2  Sun, Siao³  Langeveld, Jeroen^1,4  Bertrand-Krajewski, Jean-Luc⁵  Clemens, Francois^1,6 

[1] Delft Univ Technol, POB 5048, NL-2600 GA Delft, Netherlands

[2] Witteveen Bos, POB 233, NL-7400 AE Deventer, Netherlands

[3] Chinese Acad Sci, Inst Geog Sci & Nat Resource Res, Key Lab Reg Sustainable Dev Modeling, Beijing 100101, Peoples R China

[4] Partners4UrbanWater, Javastr 104A, NL-6524 MJ Nijmegen, Netherlands

[5] Univ Lyon, INSA Lyon, DEEP EA 7429, F-69621 Villeurbanne, France

[6] Deltares, POB 177, NL-2600 MH Delft, Netherlands

关键词: Calibration;    Conceptual models;    Full hydrodynamic models;    Integrated modelling;    Monitoring;    Urban drainage systems;   

DOI  :  10.1016/j.jhydrol.2016.04.056

来源: Elsevier

【 摘 要 】

Optimisation or real time control (RTC) studies in wastewater systems increasingly require rapid simulations of sewer systems in extensive catchments. To reduce the simulation time calibrated simplified models are applied, with the performance generally based on the goodness of fit of the calibration. In this research the performance of three simplified and a full hydrodynamic (FH) model for two catchments are compared based on the correct determination of CSO event occurrences and of the total discharged volumes to the surface water. Simplified model M1 consists of a rainfall runoff outflow (RRO) model only. M2 combines the RRO model with a static reservoir model for the sewer behaviour. M3 comprises the RRO model and a dynamic reservoir model. The dynamic reservoir characteristics were derived from FH model simulations. It was found that M2 and M3 are able to describe the sewer behaviour of the catchments, contrary to M1. The preferred model structure depends on the quality of the information (geometrical database and monitoring data) available for the design and calibration of the model. Finally, calibrated simplified models are shown to be preferable to uncalibrated FH models when performing optimisation or RTC studies. (C) 2016 Elsevier B.V. All rights reserved.

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