DTA Results for a Number of Organic Phase Change Materials

摘要

Part of this project consists of laboratory testing on the thermal behavior of different organic materials suitable for use as PCM (phase change materials) for heat storage. These tests were done using a DTA microcalorimeter as developed by the Institute of Applied Physics in Delft. This calorimeter is based on the continuous measurement of the heat transferred through a heat flow meter to a sample of PCM. With this device it is possible to measure the solidification and melting range, the latent heat and the specific heat (in the solid and the liquid phase). As part of the project 'Thermal energy storage system using organic phase-change materials with improved thermal conductivities for storage temperatures between 35 and 120C' research has been and still is being done on the thermal properties of a number of organic compounds which can be used as phase-change materials in the temperature range of 30-95C.