The addition of thermally conductive nanoparticles to conventional heat transfer fluids enhances their performance so they can be used for high-powered applications. However, as nanoparticles are added, the liquid becomes more viscous, which decreases thermal conductivity. Changing the pH of the solution can control the clustering of nanoparticles to maintain and even enhance thermal conductivity. This study used the transient plane source (TPS) method to measure the thermal conductivity of ...
Smouldering combustion is a slow, low-temperature form of combustion that is used to improve soil health. Extensive research has yet to be completed about smouldering liquid hydrocarbons in a stationary porous medium such as coal tar in sand. This study examined heat transfer in sand under simulated smouldering combustion conditions. The Thermal Constants Analyser was used to measure the thermal conductivity, thermal diffusivity and specific heat of sand at heightened ...
Quad Flat Non-Lead (QFN) devices are sensors used in building designs to control electronic equipment. The temperature of the QFN sometimes exceeds its maximum threshold, which this is primarily due to the encapsulating resin. In this study, the thermal conductivity of the resin was tested for the QFN16b, QFN32b, and QFN64b using the Transient Plane Source (TPS). Power levels between 0.1 W and 1.0 W were administered through the ...
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. ...
Titanium is used in surgical tools and bone implants because it is strong, has a low density, is resistant against corrosion, and most importantly has a high biocompatibility which reduces the risk of implant rejection. The Transient Plane Source (TPS) method was used to generate a temperature difference curve comparing 2 x 2 inch electrospun coated sheets of Titanium to bone. Results showed that Titanium had a higher thermal conductivity than bone, ...
