Category: Transient Plane Source
Keywords: circle model, concentric circular strips structure, electrical bridge, heating power, model comparisons, polymethylmetacrylate, ring model, Sensor, Solids, Thermal Conductivity, Thermal Diffusivity, thermal transport properties, transient plane heat source (TPS) method
Abstract: The mathematical model for the Hot Disk transient plane source (TPS) is based on a number of concentric ring sources with an infinitely small gap between sample and sensor (strips model). The purpose of this article is to create a model that accounts for the size of the sensor, three models were tested the disk, circles, and rings. The circles model gave almost exactly the same values for thermal conductivity as the strips, therefore both can be used to accurately determine thermal conductivity of a material.
Reference: International Journal of Thermophysics, 36, 4 (2015) 692-700