Some Heat Transfer Data for a Mannitol Derived Phase Change Material

Abstract

Heat transfer data for a commercial mannitol derivative, the Plus ICE A164, were obtained in a setup containing a heat exchanger with a single layer of three vertically placed pipes filled with the phase change material (PCM). This PCM has a fusion temperature about 168 ºC. The experimental procedure used an operating cycle composed by a heating and a cooling process, and the PCM temperature time evolution was measured. From these temperature results, the overall heat transfer coefficient, from the heat transfer fluid, a thermal oil, towards the PCM, was of 350 W/(m2 K), while the average value for the PCM heat transfer coefficient was of 415 W/(m2 K).