Coupled processes of aluminum oxidation and asphaltite hydrogenation in supercritical water flow

2014 ◽  
Vol 8 (8) ◽  
pp. 1069-1080 ◽  
Author(s):  
O. N. Fedyaeva ◽  
V. R. Antipenko ◽  
A. V. Shishkin ◽  
A. A. Vostrikov
Keyword(s):  
Water Flow ◽  
Supercritical Water ◽  
Coupled Processes ◽  
Aluminum Oxidation

CONSIDERATION OF BUOYANCE FORCES WHEN SIMULATING SUPERCRITICAL WATER FLOW IN VERTICAL TUBES

2017 ◽  
Author(s):  
Nataliia Fialko ◽  
◽  
Julii Sherenkovskiy ◽  
Nataliia Meranova ◽  
Serhii Aleshko ◽  
...  
Keyword(s):  
Computer Simulation ◽  
Water Flow ◽  
Supercritical Water ◽  
Flow Characteristics ◽  
Buoyancy Forces ◽  
Vertical Tubes

The results of computer simulation of supercritical water flow in tubes are presented. The regularities of the influence of buoyancy forces on the flow characteristics are investigated.

Numerical Simulations on Supercritical Water Flow Instability

2014 ◽  
Author(s):  
Jingjing Li ◽  
Tao Zhou ◽  
Mingqiang Song ◽  
Yanping Huang
Keyword(s):  
Numerical Simulations ◽  
Water Flow ◽  
Mass Flow ◽  
Supercritical Water ◽  
Flow Instability ◽  
Natural Circulation ◽  
Heating Power ◽  
Circulation Loop ◽  
Natural Circulation Loop ◽  
Parallel Channels

3-D simulation of supercritical water flow instability in parallel channels and a natural circulation loop are presented. Results are obtained for various heating powers. The results show that, in the natural circulation loop the steady state mass flow will firstly increase with the heating power and then decrease. And mass flow grows with the growing of the inlet temperature, decreases with the growing of system pressure. Under a large heat flux, the parallel channels will experience the flow instability of out phase mass flow oscillation. And the oscillation amplitude will grow with the growing of heating power. At last, the numerical simulations are validated by B.T. Swapnalee’s experience formula.

One-dimensional model for heat transfer to a supercritical water flow in a tube

2012 ◽  
Vol 68 ◽  
pp. 1-12 ◽  
Author(s):  
Joost L.H.P. Sallevelt ◽  
Jan A.M. Withag ◽  
Eddy A. Bramer ◽  
Derk W.F. Brilman ◽  
Gerrit Brem
Keyword(s):  
Heat Transfer ◽  
Water Flow ◽  
Supercritical Water ◽  
Dimensional Model ◽  
One Dimensional
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