Results 71 to 80 of about 331 (180)

A Comparative CFD Study on Simulating Flameless Oxy-Fuel Combustion in a Pilot-Scale Furnace

Journal of Combustion, 2016
The current study presents a method to model the flameless oxy-fuel system, with a comparative approach, as well as validation of the predictions. The validation has been done by comparing the predicted results with previously published experimental ...
Mersedeh Ghadamgahi, Patrik Ölund, Tomas Ekman, Nils Andersson, Pär Jönsson   +4 more
doaj   +1 more source

Thermostable Polyoxide Catalysts of Complete Combustion of Methane or Biogas in the Catalytic Heat Generators

Chemical Engineering Transactions, 2014
It is known that environmentally friendly flameless combustion of hydrocarbons without formation of nitrogen oxides is an important way to dispose of natural gas.
S.A. Tungatarova, Z.T. Zheksenbaeva, D.B. Abdukhalykov, T.S. Baizhumanova   +3 more
doaj   +1 more source

Increased heat transfer to sustain flameless combustion under elevated pressure conditions – a numerical study

Engineering Applications of Computational Fluid Mechanics, 2019
Sustaining flameless combustion under elevated pressure conditions remains a challenge that hinders its application in gas turbines. Previous attempts succeeded to sustain flameless operation up to 5 atm.
Hesham M. Khalil, Yehia A. Eldrainy, Walid A. Abdelghaffar, Adel A. Abdel-Rahman   +3 more
doaj   +1 more source

Joint RANS/LES Modeling of Flameless Combustion

Energy and Power Engineering, 2011
We present our timesaving joint RANS/LES approach (we originally developed it for numerical simulations of turbulent premixed combustion) to simulate flameless combustion with separate injection of gas fuel and strong exhaust gas recirculation. It is based on successive RANS/LES numerical modeling where part of the information (stationary average ...
Zimont, Vladimir L., Battaglia, Valerio
openaire   +3 more sources

Impact of Integrating Flameless Combustion Technology and Sludge–Fly Ash Recirculation on PCDE Emissions in Hazardous Waste Thermal Treatment Systems

Atmosphere
Polychlorinated diphenyl ethers (PCDEs), persistent environmental pollutants, are found in flue gas from incinerators. While air pollution control systems (APCSs) capture pollutants, the resulting sludge/fly ash (SFA) requires further treatment due to ...
Sheng-Lun Lin, Lu-Lu Duan, Jhong-Lin Wu, Chien-Er Huang, Meng-Jie Song   +4 more
doaj   +1 more source

Preparation, characterization and evaluation of MgO for flameless combustion of natural gas

Revista Facultad de Ingeniería Universidad de Antioquia, 2006
A MgO catalyst was prepared by aqueous dispersion of commercial magnesium oxide followed by drying and calcination to obtain a thermally-stabilized material.
Elías Gómez Macías, Alejandro Jaramillo, John Múnera, Mauricio Sánchez   +3 more
doaj   +1 more source

FLAMELESS OXIDATION AT THE GT26 GAS TURBINE: NUMERICAL STUDY VIA FULL CHEMISTRY

TASK Quarterly, 2001
Sequential combustion was first applied to gas turbines more than 40 years ago, and almost half of these early machines are still operating. This form of oxidation leads to the flameless combustion at a second chamber.
TOMASZ OCHRYMIUK, JANUSZ BADUR
doaj  

Nanofire and scale effects of heat

Nano Convergence, 2019
Combustion is a chemical reaction that emits heat and light. Nanofire is a kind of flameless combustion that occurs on the micro–nano scale. Pt/Al2O3 film with a thickness of 20 nm can be prepared as a catalyst by micro–nano processing. When the methanol-
Zhimao Wu, Gang Yang, Erzhen Mu, Qiuchen Wang, Sebastiaan A. Meijer, Zhiyu Hu   +5 more
doaj   +1 more source

Improvement of energy efficiency of natural gas combustion by applying a homogeneous combustion

E3S Web of Conferences, 2017
In many heat devices designers and operators meet the problem of low efficiency of combustion and restricted emission standards. This process should be improved to maximize its efficiency and satisfy additional requirements as, for example, uniform ...
Szymczyk Jacek, Cieślak Ilona, Jach Agnieszka, Pyszczek Rafał, Teodorczyk Andrzej, Cao Weiyu   +5 more
doaj   +1 more source

Heat transfer and emission characteristics of hydrogen-enriched natural gas in flameless air/oxyfuel combustion in a semi-industrial furnace

Measurement: Energy
Hydrogen combustion is seen as a promising carbon-free alternative for generating process heat in industrial processes requiring high temperatures and large amounts of energy, such as metal melting and reheating.
Kristina Mabic, Martin Adendorff, Nidhin Thekkedath Madhu, Esin Iplik, Tomas Ekman, Ioanna Aslanidou, Konstantinos Kyprianidis   +6 more
doaj   +1 more source