Ignition of Nonmetallic Materials by Impact of High-Pressure Gaseous Oxygen

2009 ◽  
pp. 218-218-15 ◽  
Author(s):  
GE Moffett ◽  
MD Pedley ◽  
N Schmidt ◽  
RE Williams ◽  
D Hirsch ◽  
...  
Keyword(s):  
High Pressure ◽  
Gaseous Oxygen

Premixing rocket engine injectors for high pressure gaseous oxygen and hydrogen

1999 ◽  
Author(s):  
William Knuth ◽  
Daniel Gramer ◽  
Christopher St. Clair
Keyword(s):  
High Pressure ◽  
Rocket Engine ◽  
Gaseous Oxygen

Study of radial burning of holes in titanium shells of high-pressure tanks with oxygen containing gas

2020 ◽  
pp. 92-99
Author(s):  
Nikolay N. TUPITSYN
Keyword(s):  
Experimental Study ◽  
High Pressure ◽  
Hole Size ◽  
Engineering Systems ◽  
Initial Value ◽  
Gaseous Oxygen ◽  
Orifice Area ◽  
Emergency Situations ◽  
Pressure Flows ◽  
Increased Pressure

The paper presents the results of the experimental study of radial burning of holes in titanium samples simulating a fragment of the shell of a high-pressure tank filled with gaseous oxygen or oxygen-containing gas. The tests revealed the possibility of a large increase in the orifice area (140–2 250 times compared with the initial value) as a result of the burning of small through-holes when oxygen-containing gas of the increased pressure flows through them and allowed us to determine the apparent radial burning rate at various oxygen concentrations. The proposed mathematical dependence of the hole size in the titanium shell after their radial burning on the process parameters may be of interest for the analysis of processes occurring in engineering systems in case of some off-nominal and emergency situations. Key words: radial burning of holes, titanium tank, oxygen-containing gas, off-nominal and emergency situations.

Kinetics and Rate Constants of Reactions Leading to Hydration of and in Gaseous Oxygen, Argon, and Helium Containing Traces of Water

1972 ◽  
Vol 50 (14) ◽  
pp. 2230-2235 ◽  
Author(s):  
J. D. Payzant ◽  
A. J. Cunningham ◽  
P. Kebarle
Keyword(s):  
High Pressure ◽  
Electron Beam ◽  
Gas Phase ◽  
Mass Spectrometer ◽  
Rate Constants ◽  
Gas Phase Reactions ◽  
Third Order ◽  
Gaseous Oxygen ◽  
Time Resolved ◽  
Pulsed Electron Beam

The rate constants for the forward and reverse components of gas phase reactions:[Formula: see text]were measured with a pulsed electron beam, time resolved detection high pressure mass spectrometer at 300 °K. O2, Ar, and He at pressures from 1–7 Torr were used as third gas M. The forward reactions were found to be third order and the reverse reactions second order. Establishment of the equilibria could also be observed.

Optical Diagnostics in a High-Pressure Combustor with Gaseous Oxygen and Kerosene

2019 ◽  
Vol 35 (1) ◽  
pp. 13-25 ◽  
Author(s):  
Henry C. Balance ◽  
Oleksandr Bibik ◽  
Timothy S. Cook ◽  
Stephen Danczyk ◽  
S. Alexander Schumaker ◽  
...  
Keyword(s):  
High Pressure ◽  
Optical Diagnostics ◽  
Gaseous Oxygen

Gaseous oxygen at high pressure and its interaction with cupric oxide

1993 ◽  
Vol 47 (18) ◽  
pp. 12018-12029 ◽  
Author(s):  
Glen A. Slack ◽  
Gérard Demazeau ◽  
Théophile Plante ◽  
Louis Rabardel
Keyword(s):  
High Pressure ◽  
Cupric Oxide ◽  
Gaseous Oxygen

scholarly journals Capabilities and Limitations of 3D-CFD Simulation of Anode Flow Fields of High-Pressure PEM Water Electrolysis

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 968
Author(s):  
Christoph Haas ◽  
Marie-Gabrielle Macherhammer ◽  
Nejc Klopcic ◽  
Alexander Trattner
Keyword(s):  
High Pressure ◽  
Liquid Water ◽  
Single Phase ◽  
Cfd Simulation ◽  
Flow Analysis ◽  
Two Phase ◽  
Gaseous Oxygen ◽  
Geometry Model ◽  
Exact Geometry ◽  
Phase Liquid

In this work, single-phase (liquid water) and two-phase (liquid water and gaseous oxygen) 3D-CFD flow analysis of the anode of a high pressure PEM electrolysis cell was conducted. 3D-CFD simulation models of the anode side porous transport layer of a PEM electrolyzer cell were created for the flow analysis. For the geometrical modelling of the PTL, two approaches were used: (a) modelling the exact geometry and (b) modelling a simplified geometry using a porosity model. Before conducting two-phase simulations, the model was validated using a single-phase approach. The Eulerian multiphase and the volume-of-fluid approaches were used for the two-phase modelling and the results were compared. Furthermore, a small section of the PTL was isolated to focus on the gas bubble flow and behaviour in more detail. The results showed plausible tendencies regarding pressure drop, velocity distribution and gas volume fraction distribution. The simplified geometry using the porous model could adequately replicate the results of the exact geometry model with a significant reduction in simulation time. The developed simulation model can be used for further investigations and gives insight into two-phase flow phenomena in the PTL. Additionally, the information obtained from simulation can aid the design and evaluation of new PTL structures.

Ignition and combustion of ferrous metals in high pressure, high velocity, gaseous oxygen

1979 ◽  
Vol 1 (1) ◽  
pp. 61-76 ◽  
Author(s):  
Charles E. Bates ◽  
James E. Wren ◽  
Raymond Monroe ◽  
C. D. Pears
Keyword(s):  
High Pressure ◽  
High Velocity ◽  
Gaseous Oxygen ◽  
Ferrous Metals ◽  
Ignition And Combustion
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