Simulation of Optimal Operations in Urban Drainage Systems
Date Issued
2005
Date
2005
Author(s)
Lin, Shiu-Shin
DOI
zh-TW
Abstract
Urban drainage systems are the most fundamental facilities in modern developed cities. There are two sewer systems in urban drainage systems: combined and separated. The waste and runoff caused by rain are drained in a single tunnel or pipe in the combined sewer systems. However, the separated sewer system uses a different kind of pipe to drain waste water and runoff. It is indicated by many researches that the performance of the sewer systems would not reach its designed capacity when rainfall with larger return periods occurs. In developed nations, real time control sewer systems are widely applied to anticipate the probability of inundation caused by heavy rainfall.
The main objective of the research is to simulate the performance (e.g. reduction of the total overflow volume in the drainage system) of the current dranage systems under optimized gate operations without extra capacity imposed to them. A drainage optimized simulation system, named RTCFT, which employes multithread technologt to integrate SWMM developed by US EPA and GAlib, an open source genetic algorithm library. Virtual pumps concept is proposed to model gate operations and implemented in RTCFT. Taking Zhongang, Shijian, and Baoyi pumping systems simulates the performance under optimized operations. The simulated results show: (1) total overflow volume in each pumping system which gates are installed in the manholes reduced under optimized gate operations. (2) these pumping systems with gates installation connented by pumps reduced the total overflow volume under optimized operations. In addition, the proposed integrated technology are suitable for parameters exchange dynamically in different models as long as the models are developed by using explicit finite difference method.
Subjects
雨水下水道
基因演算法
即時控制
內部行程通訊
多執行緒
系統整合
Urban Drainage Systems
SWMM
Genetic Algorithms
Real Time Control
Inter Process Communication
Multi-thread
System Integration
SDGs
Type
thesis
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