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Inherent scatter in pool boiling critical heat flux on reference surfacesHadžić, Armin ...Evaluating boiling heat transfer enhancement depends on reliable reference values in the form of boiling curves and critical heat flux (CHF) values. Typically, the evaluation is performed in pool ... boiling conditions with water at atmospheric pressure. Literature includes a wide scatter in reference values, prompting this study to comprehensively evaluate boiling performance and CHF on reference surfaces to investigate the scatter's origin and set a definitive reference value. The study recorded 125 boiling curves and CHF values on nominally identical bare copper surfaces, establishing an average boiling curve and mean CHF value. Despite consistent experimental conditions, the recorded CHF values displayed significant variability with a mean CHF of 1112 ± 102 kW m−2 and a scatter from 902 kW m−2 (−19 % of average CHF) to 1339 kW m−2 (+25 % of average CHF). Using Rohsenow's correlation on the average boiling curve, a Csf factor of 0.0151 was obtained. The acquired CHF data is proposed to serve as a foundational benchmark for future research in enhancing pool boiling heat transfer.Source: International journal of thermal sciences. - ISSN 1290-0729 (Vol. 204, [article no.] 109240, Oct. 2024, str. 1-10)Type of material - article, component part ; adult, seriousPublish date - 2024Language - englishCOBISS.SI-ID - 200254723
Author
Hadžić, Armin |
Može, Matic |
Zupančič, Matevž, 1990- |
Golobič, Iztok
Topics
critical heat flux |
boiling heat transfer |
pool boiling |
reference surface |
copper surface |
heat flux measurement |
kritična gostota toplotnega toka |
prenos toplote pri vrenju |
mehurčkasto vrenje |
referenčna površine |
bakrena površina |
merjenje toplotnega toka
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Hadžić, Armin | 56011 |
Može, Matic | 52341 |
Zupančič, Matevž, 1990- | 36685 |
Golobič, Iztok | 05566 |
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