Jet impingement and spray cooling using slurry of nanoencapsulated phase change materials

被引：80

作者：

Wu, W. ^{[1
]}

Bostanci, H. ^{[1
]}

Chow, L. C. ^{[1
]}

Ding, S. J. ^{[2
]}

Hong, Y. ^{[2
]}

Su, M. ^{[2
]}

Kizito, J. P. ^{[3
]}

Gschwender, L. ^{[4
]}

Snyder, C. E. ^{[4
]}

机构：

[1] Univ Cent Florida, Dept Mech Mat & Aerosp Engn, Orlando, FL 32816 USA

[2] Univ Cent Florida, NanoSci Technol Ctr, Orlando, FL 32816 USA

[3] N Carolina Agr & Tech State Univ, Dept Mech Engn, Greensboro, NC 27411 USA

[4] USAF, Mat & Mfg Directorate, Res Lab, Wright Patterson AFB, OH 45433 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2011年 / 54卷 / 13-14期

基金：

美国国家科学基金会;

关键词：

Polymer encapsulated paraffin nanoparticle; Jet impingement; Spray cooling; HEAT-TRANSFER; POLYMERIZATION; EMULSION;

D O I：

10.1016/j.ijheatmasstransfer.2011.03.022

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Polymer encapsulated nano phase change materials (paraffin) in particulate form (nano PCM) are added in water to enhance the heat transfer performance of jet impingement and spray cooling. The nano PCM particles absorb heat when paraffin changes from solid to liquid phase. The encapsulation prevents paraffin leakage and agglomeration. The volume fraction of nanoparticles plays an important role on pressure drop and heat transfer. Slurry with 28% particle volume fraction enhances heat transfer coefficient by 50% and 70% when compared to base solution for jet impingement and spray cooling, respectively. The structural integrity of shell encapsulation has been demonstrated by repeated use in a closed loop. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2715 / 2723

页数：9

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