Calculation method for flow boiling and flow condensation of R134a and R1234yf in conventional and small diameter channels - Publikacja - MOST Wiedzy

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Calculation method for flow boiling and flow condensation of R134a and R1234yf in conventional and small diameter channels

Abstrakt

The paper presents the results of calculations performed using the authors’ model to predict the heat transfer coefficient during flow boiling for two refrigerants R134a and R1234yf. The experimental data from various past studies have been collected and the calculations have been conducted for the full range of quality variation and a wide range of mass velocity. The aim of the study was to test the sensitivity of the in-house flow boiling and flow condensation model. The importance of taking into account the surface tension as the parameter exhibiting its importance in case of the flow in minichannels, as well as the influence of the reduced pressure were analysed. The obtained numerical results show good consistency with those recorded in the experiments.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
Polish Maritime Research nr 24, strony 141 - 148,
ISSN: 1233-2585
Język:
angielski
Rok wydania:
2017
Opis bibliograficzny:
Mikielewicz D., Jakubowska B.: Calculation method for flow boiling and flow condensation of R134a and R1234yf in conventional and small diameter channels// Polish Maritime Research. -Vol. 24, iss. SI(93) (2017), s.141-148
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1515/pomr-2017-0032
Weryfikacja:
Politechnika Gdańska

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