Cooling process on a run-out table by the simulation method

This study aims to determine the effective cooling parameters for the run-out table (ROT) of strip steel in a hot rolling process. Two-dimensional transient heat conduction is developed, including the external force convection and heat source due to translational motion. The strip velocity, cooling water temperature and external fluid velocity are chosen to study the influent parameters during the cooling process. To determine 2-dimensional transient heat conduction in the cooling process of strip steel, numerical methods are applied to solve for the temperature of the strip steel with appropriate boundary conditions. The backward difference formula (BDF) applies to the discretization of a partial differentiation equation (PDE). The parallel sparse direct linear solver (PARDISO) is applied to the computation in the form of a linear algebraic equation built with the Comsol multiphysics software for the heat transfer module. The simulation studies are divided into 12 case studies with three variations subjected to cooling conditions at the ROT. From the results of the simulation study, appropriate parameters to determine the temperature required for strip steel are achieved.