Title |
Route Optimization for Emergency Evacuation and Response in Disaster Area |
Authors |
강창모(Kang, Changmo) ; 이종달(Lee, Jongdal) ; 송재진(Song, Jaejin) ; 정광수(Jung, Kwangsu) |
DOI |
https://doi.org/10.12652/Ksce.2014.34.2.0617 |
Keywords |
대피 경로;최적화;다중-목적함수;유전자 알고리즘;Dijkstra 최단경로 Evacuation route;Optimization;Multi-objective;Genetic algorithm;Dijkstra's shortest path |
Abstract |
Wave energy harvesting system using OWC(Oscillating Water Column) and MB (Movable Body) attached at the caisson breakwater was studied. This system was suggested to maximize wave energy extraction using resonant phenomena of oscillating water column and buoy in wave channel (Park et al., 2014). Not only incident waves but also reflected waves from the breakwater can be used as sources of exciting force for harvesting wave energy efficiently. Using Galerkin finite model based on the linear wave theory (Park, 1991), the performance of the system was evaluated for various damping ratios of power take off system. Numerical results show that the proposed system is excellent in efficiency compared with that of conventional system and the performance of the system is governed by the resonance of oscillating water column in the wave channel. In addition, the additional efforts to minimize viscous damping was found to be necessary because viscous damping occurring in the channel and around the moving buoy is significant in generation efficiency. |