Identification of Transient Temperature Distribution in a Thick-Walled Component

Abstract

The paper presents a method of transient temperature estimation in a thick-walled pressure component. Despite the unknown boundary condition on the internal surface of the component, the method allows to determine the temperature distribution thanks to "measured" temperature histories determined in easily accessible points located on the component outer surface. On the outer component surface, heat exchange by radiation and convection is assumed. The proposed method is verified numerically. The presented method for controlling temperature is also suitable for nuclear power plants because it does not require drilling holes for sensors in the pressure element walls.