Comparison of heat transfer models with databank of supercritical fluid

Kerntechnik ◽  
2018 ◽  
Vol 83 (3) ◽  
pp. 237-240
Author(s):  
M. Zhao ◽  
X. Liu ◽  
A. Badea ◽  
F. Feuerstein ◽  
X. Cheng
Keyword(s):  
Heat Transfer ◽  
Supercritical Fluid ◽  
Transfer Models

Heat transfer models for two-component media with interfacial jump

2015 ◽  
Vol 96 (2) ◽  
pp. 247-260 ◽  
Author(s):  
I. Gruais ◽  
D. Poliševski
Keyword(s):  
Heat Transfer ◽  
Two Component ◽  
Transfer Models

scholarly journals Analysis of Roll Gap Heat Transfers in Hot Steel Strip Rolling through Roll Temperature Sensors and Heat Transfer Models

2012 ◽  
Vol 504-506 ◽  
pp. 1043-1048 ◽  
Author(s):  
Nicolas Legrand ◽  
Nathalie Labbe ◽  
Daniel Weisz-Patrault ◽  
Alain Ehrlacher ◽  
Tomasz Luks ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Steel Strip ◽  
Temperature Sensors ◽  
Strip Rolling ◽  
Strip Surface ◽  
Roll Temperature ◽  
Heat Transfers ◽  
Roll Gap ◽  
Roll Bite ◽  
Transfer Models

This paper presents an analysis of roll bite heat transfers during hot steel strip rolling. Two types of temperature sensors (drilled sensor /slot sensor) implemented near roll surface and heat transfer models are used to identify in the roll bite interfacial heat flux, temperature and Heat Transfer Coefficient HTCroll-bite during pilot rolling tests. It is shown that: - the slot type sensor is much more efficient than the drilled type sensor to capture correctly fast roll temperature changes in the bite during hot rolling but life’s duration of the slot sensor is shorter. - average HTCroll-bite, identified with roll sensors temperature signals is within the range 15-26 kW/m2/K: the higher the strip reduction is, the higher the HTCroll-bite is. - scale thickness at strip surface tends to decrease heat transfers from strip to roll in the roll bite. - HTCroll-bite appears not uniform along the roll-strip contact, in contrast to usual assumptions made in existing models - Heat dissipated by friction at roll-strip interface and its partitioning through roll and strip respectively seems over-estimated in the existing thermal roll gap model [1]. Modeling of interfacial friction heat dissipation should be reviewed and verified. The above results show the interest of roll temperature sensors to determine accurately roll bite heat transfers and evaluate more precisely the corresponding roll thermal fatigue degradation.

Validation of measurements with conjugate heat transfer models

2013 ◽  
Vol 32 (5) ◽  
pp. 1707-1720 ◽  
Author(s):  
Maximilian Schrittwieser ◽  
Oszkár Bíró ◽  
Ernst Farnleitner ◽  
Gebhard Kastner
Keyword(s):  
Heat Transfer ◽  
Conjugate Heat Transfer ◽  
Transfer Models

scholarly journals High fidelity radiative heat transfer models for high-pressure laminar hydrogen–air diffusion flames

2014 ◽  
Vol 18 (6) ◽  
pp. 607-626 ◽  
Author(s):  
Jian Cai ◽  
Shenghui Lei ◽  
Adhiraj Dasgupta ◽  
Michael F. Modest ◽  
Daniel C. Haworth
Keyword(s):  
Heat Transfer ◽  
High Pressure ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Diffusion Flames ◽  
High Fidelity ◽  
Air Diffusion ◽  
Transfer Models
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