Kinetic Analysis of TGA Measurements When Evaporation Is a Degradation Process in PCM
Abstract
Phase change materials degradation kinetics determination is very important in order to assure their use in the long term. Thermo-gravimetric analysis is generally used for determining PCM degradation kinetics. However, the general approach used do not take into account parameters as the potential evaporation of the PCM and pressure effects on the measurements due to the oven's particular operating conditions. The present work aims to develop a methodology that includes these parameters to obtain reliable PCM lifetime predictions.