Flow boiling of R1233zd(E) in a 3 mm vertical tube at moderate and high reduced pressures - Publikacja - MOST Wiedzy

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Flow boiling of R1233zd(E) in a 3 mm vertical tube at moderate and high reduced pressures

Abstrakt

The results of flow boiling of R1233zd(E) in a 3 mm vertical stainless steel tube are presented at moderate and high saturation temperatures. Integral flow characteristics in the form of pressure drop and heat transfer coefficient are discussed for saturation temperatures ranging from 115 to 145 °C (corresponding reduced pressures from 0.2 to 0.7), mass velocity of 800 kg/m2s and heat flux of 20 kW/m2. All of the obtained heat transfer trends initially decrease with vapor quality and then do not change or increase with vapor quality. The decrease is connected to the dominance of the nucleate boiling phenomenon. The subsequent increase in heat transfer indicates the increased effect of convective boiling. The rate of the increase depends on the value of reduced pressure (the smaller the reduced pressure the higher the rate). The obtained data have been compared with the predictions of the in-house model and some well-known two-phase flow correlations. The in-house model predictions presented the highest accuracy, with MAPE equal to 23.17 % for R1233zd(E) and 19.23 % for R245fa (data from literature).

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
EXPERIMENTAL THERMAL AND FLUID SCIENCE nr 147,
ISSN: 0894-1777
Język:
angielski
Rok wydania:
2023
Opis bibliograficzny:
Pysz M., Mikielewicz D.: Flow boiling of R1233zd(E) in a 3 mm vertical tube at moderate and high reduced pressures// EXPERIMENTAL THERMAL AND FLUID SCIENCE -Vol. 147, (2023), s.110964-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.expthermflusci.2023.110964
Źródła finansowania:
Weryfikacja:
Politechnika Gdańska

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