CFD study on particle-to-fluid heat transfer in fixed bed reactors: Convective heat transfer at low and high pressure

2006 ◽  
Vol 61 (13) ◽  
pp. 4341-4353 ◽  
Author(s):  
A. Guardo ◽  
M. Coussirat ◽  
F. Recasens ◽  
M.A. Larrayoz ◽  
X. Escaler
Keyword(s):  
Heat Transfer ◽  
High Pressure ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Fixed Bed ◽  
Fixed Bed Reactors

Study of Convective Heat Transfer Coefficient of High Pressure Water Descaling

2014 ◽  
Vol 599-601 ◽  
pp. 1976-1980
Author(s):  
Peng Gao
Keyword(s):  
Heat Transfer ◽  
Mathematical Model ◽  
High Pressure ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Convective Heat Transfer Coefficient ◽  
Pressure Water ◽  
The Mathematical Model

In order to improving the product quality of hot rolled plate, the iron scale was removed by high pressure water descaling before hot rolling. The billet temperature dropped when a large amount of high pressure water injected on the billet surface. Establishing reasonably mathematical model of temperature field was very important, because it was related to formulate correctly rolling technology. High pressure water descaling convection heat transfer coefficient was an important parameter in the mathematical model of the temperature field. This paper calculated the high pressure water convection heat transfer coefficient by the method of numerical simulation, and regressed the mathematical model of the high pressure water coefficient of convective heat transfer by nonlinear regression method. The author used this mathematical model for finite element analysis in a steel mill, the results showed that the simulation results agreed with the experimental results, the mathematical model of high pressure water descaling convective heat transfer coefficient was reasonable.

Distributed Joule-Thomson effects and convective heat transfer of high-pressure argon gas flow in helically coiled mini-tubes

2020 ◽  
Vol 181 ◽  
pp. 115955
Author(s):  
Liang Chen ◽  
Jie Cai ◽  
Kunpeng Lv ◽  
Xue Yang ◽  
Shuangtao Chen ◽  
...  
Keyword(s):  
Heat Transfer ◽  
High Pressure ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Gas Flow ◽  
Argon Gas
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