Analysis of Enhanced Pool Boiling Heat Transfer on Laser-Textured Surfaces

被引：18
|
作者：
Orman, Lukasz J. [1 ]
Radek, Norbert [2 ]
Pietraszek, Jacek [3 ]
Szczepaniak, Marcin [4 ]
机构：
[1] Kielce Univ Technol, Fac Environm Geomat & Energy Engn, Al Tysiaclecia P-P-7, PL-25314 Kielce, Poland
[2] Kielce Univ Technol, Fac Mechatron & Mech Engn, Al Tysiaclecia P-P-7, PL-25314 Kielce, Poland
[3] Cracow Univ Technol, Fac Mech Engn, Al Jana Pawla II 37, PL-31864 Krakow, Poland
[4] Mil Inst Engn Technol, PL-50961 Wroclaw, Poland
来源：
ENERGIES | 2020年 / 13卷 / 11期
关键词：
boiling heat transfer; enhancement; laser texturing; PERFORMANCE; FLUX;
D O I：
10.3390/en13112700
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：
0807 ; 0820 ;
摘要：
Enhancement of pool boiling heat transfer can be attained with a number of passive and active techniques. The paper experimentally analyses the impact of laser treatment of the copper surfaces on pool boiling heat transfer of distilled water and ethyl alcohol. The samples were modified with a laser beam to produce longitudinal grooves of highly developed microstructures in the laser textured area. Specimens of different groove depths, groove widths and micro-fin widths were produced. The results indicate a significant influence of laser processing on heat flux dissipated from the surfaces and heat transfer enhancement for all the samples tested. The experimental results have been generalized in the form of a heat flux correlation based on a modified model of enhanced pool boiling heat transfer.
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收藏
页数：19
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