Experimental study on the effect of inverted aperture plate temperature on frosting characteristics under rising flow considering edge effect
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28140%2F24%3A63580398" target="_blank" >RIV/70883521:28140/24:63580398 - isvavai.cz</a>
Alternative codes found
RIV/71226401:_____/24:N0100949
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0017931024001741" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0017931024001741</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijheatmasstransfer.2024.125343" target="_blank" >10.1016/j.ijheatmasstransfer.2024.125343</a>
Alternative languages
Result language
angličtina
Original language name
Experimental study on the effect of inverted aperture plate temperature on frosting characteristics under rising flow considering edge effect
Original language description
To reduce the negative impact of frost formation on cold surfaces in low-temperature environments, metal wire mesh can be set in the air flow direction from the cold surface to reduce air humidity. To quantitatively determine the effectiveness of dehumidification after passing through a metal wire, the frosting process needs to be studied. To analyze the mechanism of frost formation under the horizontal wire mesh surface, the wire mesh was simplified as a flat plate with holes, or aperture plate, with plate temperature varying at a range of -15.0 °C to -5.0 °C. The results show that, as the plate temperature decreases, the droplet condensation and growth and droplet solidification stages gradually decrease, the average frost layer thickness and frost layer growth rate rise, and overall frost layer surface roughness increases. For a frosting duration of 1,800 s, compared to -5.0 °C, the average frost layer thickness from -7.5 °C to -15.0 °C inside the hole increased by 56.68 % and 156.41 %, while the plate edge region away from the hole increased by 40.76 % and 169.92 %, respectively. The reverse melting frequency gap between the inside hole region and the plate edge region away from the hole increases with the decreasing aperture plate temperature. At -15.0 °C, the reverse melting frequency inside the hole is 5.00 × 10−3 Hz lower than in the region of the plate edge away from the hole. The results of this article are beneficial for understanding the frosting process of wire mesh or perforated-fin heat exchanger.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20303 - Thermodynamics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Heat and Mass Transfer
ISSN
0017-9310
e-ISSN
1879-2189
Volume of the periodical
244
Issue of the periodical within the volume
Neuveden
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
1-15
UT code for WoS article
001199909000001
EID of the result in the Scopus database
2-s2.0-85187260313