This article aimed to compare the thermal conductivity of expanded glass granulate at high temperature ranges using a variety of steady state and transient testing methods (Guarded Hot Plate, Heat Flow Meter, Pipe Tester, Sphere, Hot Wire, Transient Hot Bridge). The thermal conductivity of the expanded glass granulates was determined from 170°C to 530°C with the different methods and apparatuses. The thermal conductivity was found to have increased from about 0.030 ...
This article reviewed the methods that are available to test thermal properties of various insulating materials. These methods can fall under one of two categories: steady state techniques and non-steady (transient) techniques. The transient plane source (TPS) method is classified as a non-steady state technique. The TPS sensor is a round piece of engraved nickel that conducts electrical currents and is covered with a coating of Kapton, Mica or Teflon. ...
