Corrosion Mechanism of Alloy 310 Austenitic Steel beneath NaCl Deposit under Varying SO2 Concentrations in an Oxy-fuel Combustion Atmosphere

2013 ◽  
Vol 27 (10) ◽  
pp. 5699-5705 ◽  
Author(s):  
Manoj Paneru ◽  
Gosia Stein-Brzozowska ◽  
Jörg Maier ◽  
Günter Scheffknecht
Keyword(s):  
Austenitic Steel ◽  
Fuel Combustion ◽  
Corrosion Mechanism ◽  
Nacl Deposit ◽  
Combustion Atmosphere

Effect of temperature on the sintering behavior of Zhundong coal ash in oxy-fuel combustion atmosphere

Fuel ◽  
2015 ◽  
Vol 150 ◽  
pp. 526-537 ◽  
Author(s):  
Bin Zhou ◽  
Hao Zhou ◽  
Jianyang Wang ◽  
Kefa Cen
Keyword(s):  
Coal Ash ◽  
Fuel Combustion ◽  
Effect Of Temperature ◽  
Sintering Behavior ◽  
Zhundong Coal ◽  
Combustion Atmosphere

Biomass corrosion behavior of steels and coatings in contact with KCl/K2SO4 at 550 °C under an oxy-fuel combustion atmosphere: A screening laboratory test

2018 ◽  
Vol 350 ◽  
pp. 188-200 ◽  
Author(s):  
A. Agüero ◽  
I. Baráibar ◽  
M. Gutiérrez ◽  
M. Hernández ◽  
R. Muelas ◽  
...  
Keyword(s):  
Laboratory Test ◽  
Corrosion Behavior ◽  
Fuel Combustion ◽  
Combustion Atmosphere

scholarly journals Durability of gas turbine engine components in a bio-fuel combustion atmosphere

1995 ◽  
Author(s):  
J K L Wong ◽  
G N Banks ◽  
H Whaley
Keyword(s):  
Gas Turbine ◽  
Gas Turbine Engine ◽  
Fuel Combustion ◽  
Turbine Engine ◽  
Combustion Atmosphere ◽  
Engine Components

Effect of Five Different Additives on the Sintering Behavior of Coal Ash Rich in Sodium under an Oxy-fuel Combustion Atmosphere

2015 ◽  
Vol 29 (9) ◽  
pp. 5519-5533 ◽  
Author(s):  
Hao Zhou ◽  
Jianyang Wang ◽  
Bin Zhou
Keyword(s):  
Coal Ash ◽  
Fuel Combustion ◽  
Sintering Behavior ◽  
Combustion Atmosphere

Spherulite Structures in a Melt Spun Fe-Ni Austenitic Steel

1985 ◽  
Vol 43 ◽  
pp. 52-53
Author(s):  
G. M. Michal ◽  
T. K. Glasgow ◽  
T. J. Moore
Keyword(s):  
Austenitic Steel ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Large Range ◽  
Amorphous Structure ◽  
Nucleation And Growth ◽  
Ni Alloys ◽  
Melt Spun ◽  
Crystal Fibers ◽  
Rapidly Solidified

Large additions of B to Fe-Ni alloys can lead to the formation of an amorphous structure, if the alloy is rapidly cooled from the liquid state to room temperature. Isothermal aging of such structures at elevated temperatures causes crystallization to occur. Commonly such crystallization pro ceeds by the nucleation and growth of spherulites which are spherical crystalline bodies of radiating crystal fibers. Spherulite features were found in the present study in a rapidly solidified alloy that was fully crysstalline as-cast. This alloy was part of a program to develop an austenitic steel for elevated temperature applications by strengthening it with TiB2. The alloy contained a relatively large percentage of B, not to induce an amorphous structure, but only as a consequence of trying to obtain a large volume fracture of TiB2 in the completely processed alloy. The observation of spherulitic features in this alloy is described herein. Utilization of the large range of useful magnifications obtainable in a modern TEM, when a suitably thinned foil is available, was a key element in this analysis.

Crystal structure and lattice dynamics of hydrogen-loaded austenitic steel

2003 ◽  
Vol 112 ◽  
pp. 407-410
Author(s):  
S. A. Danilkin ◽  
M. Hölzel ◽  
H. Fuess ◽  
H. Wipf ◽  
T. J. Udovic ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Austenitic Steel ◽  
Lattice Dynamics

WET BURNING – THE MODERN TREND IN ENVIRONMENTAL BENIGN FUEL COMBUSTION AND IN SOLUTION TO THE PROBLEM OF SUSTAINABLE DEVELOPMENT OF THE POWER GENERATION

2018 ◽  
pp. 96-117 ◽  
Author(s):  
B. S. Soroka
Keyword(s):  
Numerical Simulation ◽  
Nitrogen Oxides ◽  
Chemical Kinetics ◽  
Fuel Combustion ◽  
Transport Processes ◽  
Cfd Modeling ◽  
Furnace Chamber ◽  
Modern Trend ◽  
Atmospheric Air ◽  
No Formation

The article considers the role and place of water and water vapor in combustion processes with the purpose of reduction the effluents of nitrogen oxides and carbon oxide. We have carried out the complex of theoretical and computational researches on reduction of harmful nitrogen and carbon oxides by gas fuel combustion in dependence on humidity of atmospheric air by two approaches: CFD modeling with attraction of DRM 19 chemical kinetics mechanism of combustion for 19 components along with Bowman’s mechanism used as “postprocessor” to determine the [NO] concentration; different thermodynamic models of predicting the nitrogen oxides NO formation. The numerical simulation of the transport processes for momentum, mass and heat being solved simultaneously in the united equations’ system with the chemical kinetics equations in frame of GRI methane combustion mechanism and NO formation calculated afterwards as “postprocessor” allow calculating the absolute actual [CO] and [NO] concentrations in dependence on combustion operative conditions and on design of furnace facilities. Prediction in frame of thermodynamic equilibrium state for combustion products ensures only evaluation of the relative value of [NO] concentration by wet combustion the gas with humid air regarding that in case of dry air – oxidant. We have developed the methodology and have revealed the results of numerical simulation of impact of the relative humidity of atmospheric air on harmful gases formation. Range of relative air humidity under calculations of atmospheric air under impact on [NO] and [CO] concentrations at the furnace chamber exit makes φ = 0 – 100%. The results of CFD modeling have been verified both by author’s experimental data and due comparing with the trends stated in world literature. We have carried out the complex of the experimental investigations regarding atmospheric air humidification impact on flame structure and environmental characteristics at natural gas combustion with premixed flame formation in open air. The article also proposes the methodology for evaluation of the nitrogen oxides formation in dependence on moisture content of burning mixture. The results of measurements have been used for verification the calculation data. Coincidence of relative change the NO (NOx) yield due humidification the combustion air revealed by means of CFD prediction has confirmed the qualitative and the quantitative correspondence of physical and chemical kinetics mechanisms and the CFD modeling procedures with the processes to be studied. A sharp, more than an order of reduction in NO emissions and simultaneously approximately a two-fold decrease in the CO concentration during combustion of the methane-air mixture under conditions of humidification of the combustion air to a saturation state at a temperature of 325 K.

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