Mathematical Modeling and System Identification Aspects of Heat Flow Process inside a Closed Box

Abstract: This paper presents review points of mathematical modeling and system identification issues of heat flow process inside a closed box. For system parameter identification, the least squares method is employed and NI Temperature Box is used as a test rig for different reference temperature values. Curve Fitting toolbox and M-file codes written in MATLAB are used based on the Levenberg-Marquardt algorithm in solving least squares equations of the system.