Mechanics & Industry
Volume 20, Number 7, 2019
Application of Experimental and Numerical Methods in Fluid Mechanics and Energy
|Number of page(s)||7|
|Published online||13 November 2019|
Distilled water and ethyl alcohol boiling heat transfer on selected meshed surfaces
Kielce University of Technology, Faculty of Environmental, Geomatic and Energy Engineering, al. Tysiaclecia P.P.7, 25-314 Kielce, Poland
2 University of Zilina, Faculty of Mechanical Engineering, Univerzitna 1, 01026 Zilina, Slovakia
* e-mail: firstname.lastname@example.org
Accepted: 5 October 2019
The article deals with the problem of pool boiling heat transfer enhancement on metal wire mesh coatings made of copper and phosphor bronze at nucleate boiling of distilled water and high purity ethyl alcohol under ambient pressure. The tests have been performed on horizontal samples containing different microstructures produced with the sintering technology. The samples were attached to the heating block with soldering. As a result of the experiments, boiling curves were obtained, describing the relationship between the dissipated heat flux and the superheat values for each specimen. A considerable augmentation of heat flux has been recorded for the meshed surfaces in relation to the smooth reference surface without any coating. Generally, the highest enhancement was recorded for the low superheat values. The presented test results have been discussed and then compared with selected correlations available in literature for nucleate boiling heat transfer on microstructure coated surfaces.
Key words: Boiling / heat transfer enhancement / meshes
© L. Dąbek et al., published by EDP Sciences 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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