On flow boiling of R-1270 in a small horizontal tube: Flow patterns and heat transfer

Jeferson Diehl de Oliveira; Jacqueline Biancon Copetti; Julio Cesar Passos; Cees W.M. van der Geld

doi:10.1016/j.applthermaleng.2020.115403

On flow boiling of R-1270 in a small horizontal tube: Flow patterns and heat transfer

Jeferson Diehl de Oliveira (Corresponding author), Jacqueline Biancon Copetti, Julio Cesar Passos, Cees W.M. van der Geld

Research output: Contribution to journal › Article › Academic › peer-review

1 Citation (Scopus)

Abstract

An experimental study was performed to investigate both flow patterns and heat transfer during flow boiling of propylene (R-1270) at a saturation temperature of 25 °C in a small circular tube with an inner diameter of 1.0 mm. The heat flux was varied from 5 to 60 kW/m² and the mass flux ranged from 240 up to 480 kg/m² s, with vapor quality ranging from 0.01 to 0.99. Five flow patterns were identified: plug flow, slug flow, churn flow, wavy- and (smooth) annular flow. The influence of the heat flux, mass flux, vapor quality and flow pattern on the heat transfer coefficient are quantified and analyzed. The new experimental heat transfer coefficients were compared with predictions of correlations found in literature and recommendations are presented.

Original language	English
Article number	115403
Number of pages	14
Journal	Applied Thermal Engineering
Volume	178
DOIs	https://doi.org/10.1016/j.applthermaleng.2020.115403
Publication status	Published - Sep 2020

Keywords

Flow boiling
Flow patterns
Heat transfer
Horizontal tube
Minichannel
Propylene

Access to Document

10.1016/j.applthermaleng.2020.115403

Link to publication in Scopus

Fingerprint Dive into the research topics of 'On flow boiling of R-1270 in a small horizontal tube: Flow patterns and heat transfer'. Together they form a unique fingerprint.

Cite this

de Oliveira, J. D., Copetti, J. B., Passos, J. C., & van der Geld, C. W. M. (2020). On flow boiling of R-1270 in a small horizontal tube: Flow patterns and heat transfer. Applied Thermal Engineering, 178, [115403]. https://doi.org/10.1016/j.applthermaleng.2020.115403

@article{803a5cb2f76c464586321ce47b857699,

title = "On flow boiling of R-1270 in a small horizontal tube: Flow patterns and heat transfer",

abstract = "An experimental study was performed to investigate both flow patterns and heat transfer during flow boiling of propylene (R-1270) at a saturation temperature of 25 °C in a small circular tube with an inner diameter of 1.0 mm. The heat flux was varied from 5 to 60 kW/m2 and the mass flux ranged from 240 up to 480 kg/m2 s, with vapor quality ranging from 0.01 to 0.99. Five flow patterns were identified: plug flow, slug flow, churn flow, wavy- and (smooth) annular flow. The influence of the heat flux, mass flux, vapor quality and flow pattern on the heat transfer coefficient are quantified and analyzed. The new experimental heat transfer coefficients were compared with predictions of correlations found in literature and recommendations are presented.",

keywords = "Flow boiling, Flow patterns, Heat transfer, Horizontal tube, Minichannel, Propylene",

author = "{de Oliveira}, {Jeferson Diehl} and Copetti, {Jacqueline Biancon} and Passos, {Julio Cesar} and {van der Geld}, {Cees W.M.}",

year = "2020",

month = sep,

doi = "10.1016/j.applthermaleng.2020.115403",

language = "English",

volume = "178",

journal = "Applied Thermal Engineering",

issn = "1359-4311",

publisher = "Elsevier",

}

TY - JOUR

T1 - On flow boiling of R-1270 in a small horizontal tube

T2 - Flow patterns and heat transfer

AU - de Oliveira, Jeferson Diehl

AU - Copetti, Jacqueline Biancon

AU - Passos, Julio Cesar

AU - van der Geld, Cees W.M.

PY - 2020/9

Y1 - 2020/9

N2 - An experimental study was performed to investigate both flow patterns and heat transfer during flow boiling of propylene (R-1270) at a saturation temperature of 25 °C in a small circular tube with an inner diameter of 1.0 mm. The heat flux was varied from 5 to 60 kW/m2 and the mass flux ranged from 240 up to 480 kg/m2 s, with vapor quality ranging from 0.01 to 0.99. Five flow patterns were identified: plug flow, slug flow, churn flow, wavy- and (smooth) annular flow. The influence of the heat flux, mass flux, vapor quality and flow pattern on the heat transfer coefficient are quantified and analyzed. The new experimental heat transfer coefficients were compared with predictions of correlations found in literature and recommendations are presented.

AB - An experimental study was performed to investigate both flow patterns and heat transfer during flow boiling of propylene (R-1270) at a saturation temperature of 25 °C in a small circular tube with an inner diameter of 1.0 mm. The heat flux was varied from 5 to 60 kW/m2 and the mass flux ranged from 240 up to 480 kg/m2 s, with vapor quality ranging from 0.01 to 0.99. Five flow patterns were identified: plug flow, slug flow, churn flow, wavy- and (smooth) annular flow. The influence of the heat flux, mass flux, vapor quality and flow pattern on the heat transfer coefficient are quantified and analyzed. The new experimental heat transfer coefficients were compared with predictions of correlations found in literature and recommendations are presented.

KW - Flow boiling

KW - Flow patterns

KW - Heat transfer

KW - Horizontal tube

KW - Minichannel

KW - Propylene

UR - http://www.scopus.com/inward/record.url?scp=85086168447&partnerID=8YFLogxK

U2 - 10.1016/j.applthermaleng.2020.115403

DO - 10.1016/j.applthermaleng.2020.115403

M3 - Article

AN - SCOPUS:85086168447

VL - 178

JO - Applied Thermal Engineering

JF - Applied Thermal Engineering

SN - 1359-4311

M1 - 115403

ER -