Results 91 to 100 of about 34,329 (324)

Boiling incipience and convective boiling of neon and nitrogen [PDF]

open access: yes
Forced convection and subcooled boiling heat transfer data for liquid nitrogen and liquid neon were obtained in support of a design study for a 30 tesla cryomagnet cooled by forced convection of liquid neon.
Hendricks, R. C., Papell, S. S.
core   +1 more source

Assessment of CTF boiling transition and critical heat flux modeling capabilities using the OECD/NRC BFBT and PSBT benchmark databases [PDF]

open access: yes, 2011
The need to refine models for best-estimate calculations, based on good-quality experimental data, has been expressed in many recent meetings in the field of nuclear applications.
Avramova, Maria, Cuervo Gómez, Diana
core   +1 more source

Phase appearance or disappearance in two-phase flows [PDF]

open access: yes, 2011
This paper is devoted to the treatment of specific numerical problems which appear when phase appearance or disappearance occurs in models of two-phase flows. Such models have crucial importance in many industrial areas such as nuclear power plant safety
A Guelfi   +32 more
core   +2 more sources

Interfacial Heat Transfer of Condensation Bubble with Consideration of Bubble Number Distribution in Subcooled Flow Boiling

open access: yesJournal of Thermal Science and Technology, 2013
For predicting the void fraction distribution in subcooled flow boiling, it is necessary to measure the interfacial heat transfer coefficient—which determines the amount of condensation rate of vapor bubble—with high accuracy.
Noriaki INABA   +2 more
doaj   +1 more source

Influence of heat input waveform on transient critical heat flux of subcooled water flow boiling in a short vertical tube [PDF]

open access: yes, 2010
The transient critical heat fluxes (CHFs) of the subcooled water flow boiling for ramp-wise heat input [Q = αt, α = 6.21 × 108 to 1.63 × 1012 W/m3 s, (q 1.08 × 107 to 6.00 × 107 W/m2)] and stepwise one [Q = Qs, Qs = 0 W/m3 at t = 0 s and Qs = 2.95 × 1010
Hata, Koichi, Masuzaki, s.
core   +1 more source

Analysis of flow boiling heat transfer in narrow annular gaps applying the design of experiments method

open access: yesAdvances in Mechanical Engineering, 2015
The axial heat transfer coefficient during flow boiling of n -hexane was measured using infrared thermography to determine the axial wall temperature in three geometrically similar annular gaps with different widths ( s  = 1.5 mm, s  = 1 mm, s  = 0.5 mm).
Gunar Boye   +2 more
doaj   +1 more source

Flow of vapour in a liquid enclosure [PDF]

open access: yes, 1976
A solution is developed for the flow of a vapour in a liquid enclosure in which different portions of the liquid wall have different temperatures. It is shown that the vapour pressure is very nearly uniform in the enclosure, and an expression for the net
Plesset, Milton S., Prosperetti, Andrea
core   +1 more source

Numerical simulation of subcooled boiling in a vertical pipe with twisted tape inserts [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2015
Subcooled flow boiling occurs in many industrial applications and it is characterized by a large heat transfer coefficient. In this paper, numerical simulation of subcooled flow boiling in a vertical pipe is investigated by ANSYS CFX 14.
Hossein Kazeminejad, Mehdi Tafreshi
doaj  

Quench cooling under reduced gravity

open access: yes, 2013
We report the quench cooling experiments performed with liquid O2 under different levels of gravity simulated with the magnetic gravity compensation. A copper disk is quenched from 270K to 90K.
Beysens, D.   +3 more
core   +3 more sources

Two-Phase Pipe Flow in Microgravity with and without Phase Change: recent progress and future prospects [PDF]

open access: yes, 2015
Gas-liquid and liquid-vapor pipe flows in microgravity have been studied for more than forty years because of theirpotential applications in space industries for thermal control of satellites, propellant supply for launchers, and wastewater treatment for
Colin, Catherine, Narcy, Marine
core   +2 more sources

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