Title :
Ant Colony Optimization Based Heat Transfer Coefficient Identification for Secondary Cooling Zone of Continuous Caster
Author :
Ji, Zhenping ; Wang, Biao ; Xie, Zhi ; Lai, Zhaoyi
Author_Institution :
Northeastern Univ., Shenyang
Abstract :
A two-dimensional heat transfer model for simulation and control of a continuous steel billet caster is presented. The convection heat transfer coefficient for each segment of secondary cooling zone is determined, which is the boundary conditions of heat transfer model. An improved ant colony optimization (ACO) algorithm to identify the calibration constants of convection heat transfer coefficient is also presented. The ACO algorithm is a novel heuristic bionic algorithm, which is based on the behavior of real ants in nature searching for food. In order to identify these calibration constants using ACO algorithm, an objective function was constructed based on shell thickness, and elitist strategy was adopted in the improved ACO algorithm. Test results show that the methodology is effective for real application.
Keywords :
billets; casting; convection; cooling; optimisation; steel manufacture; ant colony optimization; calibration constants; continuous steel billet caster; convection heat transfer coefficient identification; heuristic bionic algorithm; secondary cooling zone; two-dimensional model; Ant colony optimization; Billets; Boundary conditions; Calibration; Cooling; Heat transfer; Heuristic algorithms; Steel; Temperature control; Testing; ACO; Calibration constants; Continuous casting; Heat transfer coefficient;
Conference_Titel :
Integration Technology, 2007. ICIT '07. IEEE International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
1-4244-1092-4
Electronic_ISBN :
1-4244-1092-4
DOI :
10.1109/ICITECHNOLOGY.2007.4290379