An experimental investigation of heat transfer enhancement by addition of high-alcohol surfactant (HAS) and dissolving salt additive (DSA) in spray cooling

被引：57

作者：

Cheng, Wenlong ^{[1
]}

Xie, Biao ^{[1
]}

Han, Fengyun ^{[1
]}

Chen, Hua ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei 230027, Anhui, Peoples R China

来源：

EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2013年 / 45卷

基金：

美国国家科学基金会;

关键词：

Spray cooling; Heat transfer enhancement; High-alcohol surfactant; Dissolving salt additive;

D O I：

10.1016/j.expthermflusci.2012.11.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The effects of addition of high-alcohol surfactant (HAS, i.e. 1-Octanol or 2-ethyl-hexanol) on the heat transfer enhancement of water spray cooling were studied experimentally. For comparison, the heat transfer performances of water spray cooling with dissolving salt additive (DSA, i.e. NaCl or Na2SO4) were tested also. For the addition of 200 ppm 1-Octanol or 150 ppm 2-ethty-hexanol, the heat transfer of spray cooling on the hot surface at about 80 degrees C increased 28% or 36% than that without any additive, while for addition of 1.76% NaCl or 2.76% Na2SO4, the heat transfer performance increased about 29% or 31%. It showed that both HAS and DSA could significantly enhance the heat transfer of water spray cooling at a suitable concentration, and the HAS, especially 2-ethyl-hexanol, showed higher performance in the heat transfer enhancement. (C) 2012 Elsevier Inc. All rights reserved.

引用

页码：198 / 202

页数：5

共 15 条

[11] Liu Q.N., 2010, SPACECR ENG, V19, P61
[12] Optimizing and predicting CHF in spray cooling of a square surface
Mudawar, I
Estes, KA
[J]. JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1996, 118 (03): : 672 - 679
[13] Spray cooling enhancement by addition of a surfactant
Qiao, YM
Chandra, S
[J]. JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1998, 120 (01): : 92 - 98
[14] An experimental investigation of heat transfer of a droplet impinging upon a hot surface
Wang, CH
Sun, CJ
Kuo, HC
[J]. INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 1997, 24 (01) : 65 - 78
[15] WESTWATER JW, 1955, ADV CHEM ENG, V1

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