Journal of Thermal Analysis and Calorimetry

, Volume 101, Issue 3, pp 1155–1160

Development of a model for compensating the influence of temperature gradients within the sample on DSC-results on phase change materials

Article

DOI: 10.1007/s10973-010-0805-x

Cite this article as:
Albright, G., Farid, M. & Al-Hallaj, S. J Therm Anal Calorim (2010) 101: 1155. doi:10.1007/s10973-010-0805-x
  • 174 Downloads

Abstract

The use of phase change materials (PCMs) in thermal storage is not a new concept, but engineers are continually finding new ways to utilize them in a wide range of applications. A PCM takes advantage of high latent heat in the phase change process to store large amounts of heat while undergoing only a small change in temperature. This property makes PCMs suitable for thermal storage purposes in a wide range of engineering applications. Due to the nature of these applications, it is vital to have a precise knowledge of the thermal characteristics of any PCM. Unfortunately, due to the low thermal conductivities and high latent heats found in PCMs, current measuring tools such as differential scanning calorimetry, provide inconsistent results. This paper conjectures that these errors come from the effects of low thermal diffusivity samples as well as improper data analysis methods.

Keywords

DSC Differential scanning calorimetry PCM Phase change material Gradient Latent heat 

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2010

Authors and Affiliations

  1. 1.Department of Chemical & Materials Engineering, School of EngineeringThe University of AucklandAucklandNew Zealand
  2. 2.AllCell Technologies LLCChicagoUSA

Personalised recommendations