Mobile QR Code QR CODE : Korean Journal of Air-Conditioning and Refrigeration Engineering
Korean Journal of Air-Conditioning and Refrigeration Engineering

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleKorean J. Air-Cond. Refrig. Eng.
  • Open Access, Monthly
Open Access Monthly
  • ISSN : 1229-6422 (Print)
  • ISSN : 2465-7611 (Online)
Title Phase-change Temperature of Micro-encapsulated Phase-change Material
Authors 최은수
Page pp.168-174
ISSN 12296422
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.