Revisiting the corresponding-states-based correlation for pool boiling critical heat flux

Može, Matic (author), Zupančič, Matevž (author), Sedmak, Ivan (author), Ferjančič, Klemen (author), Gjerkeš, Henrik (author), Golobič, Iztok (author)

A corresponding-states correlation for predicting the critical heat flux (CHF) in pool boiling conditions is proposed, and only requires knowledge of physical property constants of the fluid at any fluid temperature: molar mass, critical temperature, critical pressure, and the Pitzer acentric factor. If a fourth corresponding equation of state (EoS) parameter is added, a more accurate CHF correlation is obtained and matches Kutateladze–Zuber prediction within ±10% in the reduced temperature range of 0.55–0.95. This way, CHF can be easily predicted for any reduced temperature within the range of correlation’s validity by only knowing basic properties of the fluid. Additionally, two corresponding-states correlations for determining the capillary length are proposed and also do not rely on any temperature- and pressure-dependent fluid properties. A simpler correlation only using the Pitzer acentric factor is shown to be imprecise, and a more complex correlation also accounting for the fourth corresponding EoS parameter is recommended. These correlations are fundamental for further developments, which would allow for accurate prediction of CHF values on functionalized surfaces through further studies on the influence of interactions of fluid properties with other parameters, such as wetting and active nucleation site density.

• Language: English
• Keywords: pool boiling, critical heat flux, corresponding states principle, CHF prediction, correlation, Pitzer acentric factor
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Publication date: 11.05.2022
• Year: 2022
• Number of pages: 19 str.
• Numbering: Vol. 15, iss. 10, art. 3524
• PID: 20.500.12556/RUL-136663
• UDC: 66.02:536.24
• ISSN on article: 1996-1073
• DOI: 10.3390/en15103524
• COBISS.SI-ID: 107631363
• Publication date in RUL: 13.05.2022

Record is a part of a journal

• Title: Energies
• Shortened title: Energies
• Publisher: Molecular Diversity Preservation International
• ISSN: 1996-1073
• COBISS.SI-ID: 518046745

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 11.05.2022
• Applies to: Published

Secondary language

• Language: Slovenian
• Keywords: vrenje v bazenu, kritična gostota toplotnega toka, princip korespondenčnih stanj, napoved CHF, korelacija, Pitzerjev acentrični faktor