Forced Convection Subcooled Boiling

2021 ◽  
pp. 123-149
Keyword(s):  
Forced Convection ◽  
Subcooled Boiling

Effects of turbulence models on forced convection subcooled boiling in vertical pipe

2015 ◽  
Vol 80 ◽  
pp. 293-302 ◽  
Author(s):  
Rui Zhang ◽  
Tenglong Cong ◽  
Wenxi Tian ◽  
Suizheng Qiu ◽  
Guanghui Su
Keyword(s):  
Forced Convection ◽  
Turbulence Models ◽  
Subcooled Boiling ◽  
Vertical Pipe

Heat Transfer for Forced Convection Past Coiled Wires

1990 ◽  
Vol 112 (4) ◽  
pp. 921-925 ◽  
Author(s):  
M. Dietrich ◽  
R. Blo¨chl ◽  
H. Mu¨ller-Steinhagen
Keyword(s):  
Heat Transfer ◽  
Forced Convection ◽  
Measured Data ◽  
Subcooled Boiling ◽  
Transfer Coefficients ◽  
Heat Transfer Coefficients ◽  
Coil Geometry ◽  
Coil Diameter ◽  
Wide Range ◽  
Laminar And Turbulent Flow

Heat transfer coefficients were measured for forced convection of isobutanol in crossflow past coiled wires with different coil geometries. Flow rate and heat flux have been varied over a wide range to include laminar and turbulent flow for convective sensible and subcooled boiling heat transfer. To investigate the effect of coil geometry on heat transfer, the wire diameter, coil diameter, and coil pitch were varied systematically. The measured data are compared with the predictions of four correlations from the literature.

Void Fraction and Vapor and Liquid Temperatures: Local Measurements in Two-Phase Flow Using a Microthermocouple

1973 ◽  
Vol 95 (3) ◽  
pp. 365-370 ◽  
Author(s):  
J. M. Delhaye ◽  
R. Semeria ◽  
J. C. Flamand
Keyword(s):  
Temperature Measurement ◽  
Forced Convection ◽  
Void Fraction ◽  
Two Phase Flow ◽  
Pool Boiling ◽  
Phase Flow ◽  
Subcooled Boiling ◽  
Two Phase ◽  
Local Measurements ◽  
Phase Liquid

A technique is described which enables the detection of the phase (liquid or vapor) in steam-water two-phase flow and the temperature measurement of each phase, using the hot junction of a microthermocouple. The signals are processed with a multichannel analyzer in order to obtain the amplitude histograms of the temperature. Significant results are obtained in pool boiling, forced convection subcooled boiling, and flashing flow of water.

Bubble Lift-Off Size in Forced Convection Subcooled Boiling

2003 ◽  
Author(s):  
Rong Situ ◽  
Ye Mi ◽  
Xiaodong Sun ◽  
Mamoru Ishii ◽  
Michitrugu Mori
Keyword(s):  
Forced Convection ◽  
Constitutive Relation ◽  
High Speed ◽  
Annular Channel ◽  
Video Camera ◽  
Bubble Nucleation ◽  
Force Balance ◽  
Subcooled Boiling ◽  
Digital Video Camera ◽  
Lift Off

Forced convection subcooled boiling experiments were conducted in a BWR-scaled vertical upward annular channel. Water was used as the testing fluid, and the tests were performed at atmospheric pressure. A high-speed digital video camera was applied to capture the dynamics of the bubble nucleation process. Bubble lift-off diameters were obtained from the images for a total of 91 test conditions. A force balance analysis of a growing bubble was carried out. A constitutive relation for bubble lift-off size was obtained by correlating current water data and R113 data from literature. The proposed constitutive relation and experimental data agree well with each other.

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