Application of Central Force Optimization Method to Design Transient Protection Devices for Water Transmission Pipelines

Subject Areas : Water Resources

Seyed Mahmood Jazayeri Moghadas ¹

1 - Department of civil engineering, Shoushtar Branch, Islamic Azad Univercity,Shoushtar, Iran

Received: 2020-09-27 Accepted : 2020-10-08 Published : 2020-08-22

Keywords: Optimization, CFO, Transient flow, Transmission Pipeline,

Abstract :

One of the major challenges in designing under pressure water transmission pipeline is the system protection against water-hammer pressures due to a pump trip. The best strategy is to use air-chamber; which imposes considerable costs. To mitigate the air-chamber volume, the use of air-inlet valves is also suggested. Determination of air-chamber volume as well as the type and proper locations of air-inlet valves, aiming at the cost reduction, introduces an optimization problem. To solve this problem, this study exploits the central force optimization (CFO) method. Herein, a case study pipeline is optimized using the proposed model based on the CFO and is compared with results of a genetic algorithm (GA) based model. Both methods yielded almost the same results and led to about 30% saving in the system protection cost. However, a comparison between the methods showed that the CFO dramatically outperforms GA in both terms of computational efficiency and reliability of the results.