Crystallization of PCMs inside an emulsion: Supercooling phenomenon

被引：79

作者：

El Rhafiki, T. ^{[2
]}

Kousksou, T. ^{[1
]}

Jamil, A. ^{[3
]}

Jegadheeswaran, S. ^{[4
]}

Pohekar, S. D. ^{[4
]}

Zeraouli, Y. ^{[1
]}

机构：

[1] Univ Pau & Pays Adour, IFR A, Lab Sci Ingn Appl Mecan & Genie Elect SIAME, F-64000 Pau, France

[2] Ecole Natl Super Arts & Metiers, ENSAM Marjane 2, Ismailia, Egypt

[3] Univ Sidi Mohamed Ibn Abdelah, Ecole Super Technol Fes, Fes, Morocco

[4] Tolani Maritime Inst, Mech Engn Area, Pune 410507, Maharashtra, India

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2011年 / 95卷 / 09期

关键词：

Supercooling; Nucleation probability; Melting; Crystallization; Phase change materials; Emulsion; PHASE-CHANGE EMULSION; HOMOGENEOUS NUCLEATION; UNDERCOOLED DROPLETS; THERMAL-ANALYSIS; HEAT-TRANSFER; STORAGE; KINETICS; FLOW; PERFORMANCE; SLURRIES;

D O I：

10.1016/j.solmat.2011.03.027

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

080707 [能源环境工程]; 082001 [油气井工程];

摘要：

Heat transfer characteristics during crystallization and melting of the phase change material (PCM) dispersed inside an emulsion are investigated theoretically and experimentally. The dispersed PCMs are hexadecane, octadecane and water. The crystallization and melting processes are not symmetrical because of the supercooling phenomenon induced by the smallness of the emulsion droplet sizes. Nucleation laws are used to simulate the supercooling phenomenon. Energy analysis is carried out to understand the behavior of the emulsion using two paraffins (octadecane and hexadecane). The effects of different parameters such as the mass fraction of PCM and the stabilization temperature on thermal behavior of emulsion are also analyzed. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2588 / 2597

页数：10

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