Title |
Phase-change Temperature of Micro-encapsulated Phase-change Material |
Keywords |
Lauric acid ; 로릭산 ; Micro-encapsulated phase-change material ; 미립 피복 상변화 물질 ; Convective heat transfer ; 대류 열전달 ; Differential scanning calorimeter ; 열분석기 ; Undercooling ; 과냉각 ; Melting ; 용융 ; Freezing ; 응고 |
Abstract |
In order to obtain a new heat transfer fluid having a high thermal capacity, micro-capsules of a phase-change material can be a successful candidate to be added into water. In this study, 25, 50, 100, and 200m diameter micro-encapsulated Lauric acids were tested by a differential scanning calorimeter. The Lauric acid itself had a single freezing curve, but the micro-encapsulated Lauric acid had double freezing curves. The second freezing dominated for 25m diameter Lauric acids. But the first freeing energy became big as the size of the capsule increased. |