Combustion behavior and stability map of hydrogen-enriched oxy-methane premixed flames in a model gas turbine combustor

BA Imteyaz, MA Nemitallah, AA Abdelhafez… - International journal of …, 2018 - Elsevier
The article describes an experimental study and comparison of the combustion behavior
and determines the stability map of turbulent premixed H 2-enriched oxy-methane flames in …

Effects of annular N2/O2 and CO2/O2 jets on combustion instabilities and NOx emissions in lean-premixed methane flames

H Zhou, C Tao - Fuel, 2020 - Elsevier
Experiments on the effects of annular N 2/O 2 and CO 2/O 2 jets on combustion instabilities
and NOx emissions in lean-premixed methane flames were conducted. Two variables were …

Experimental and computational study on stability characteristics of hydrogen-enriched oxy-methane premixed flames

MA Nemitallah, B Imteyaz, A Abdelhafez, MA Habib - Applied Energy, 2019 - Elsevier
The combustion and stability characteristics of premixed swirl-stabilized H 2-enriched CH 4-
O 2-CO 2 flames were investigated experimentally and computationally in a model gas …

Investigation of flame and flow response in the swirler with different divergence cups and central body under external excitation

Y Yang, G Wang, H Wu, Z Zhu, C Ma, J Li - Physics of Fluids, 2023 - pubs.aip.org
Effects of swirl divergence cup and the central bluff body on premixed flame response with
external excitation are experimentally investigated. Flame transfer functions (FTFs) …

Flame fluctuations in Oxy-CO2-methane mixtures in swirl assisted distributed combustion

AEE Khalil, AK Gupta - Applied Energy, 2017 - Elsevier
Swirl assisted oxy-methane combustion investigated here has focused on the impact of
carbon dioxide dilution. Carbon dioxide dilution is essential as it lowers the flame adiabatic …

Review of fuel/oxidizer-flexible combustion in gas turbines

MA Haque, MA Nemitallah, A Abdelhafez… - Energy & …, 2020 - ACS Publications
Strict emission control regulations call for continuous advancement in existing combustion
and carbon-capture technologies to mitigate the rise in pollutants and greenhouse gases …

Experimental and numerical assessment of the effects of hydrogen admixtures on premixed methane-oxygen flames

A Hasche, A Navid, H Krause, S Eckart - Fuel, 2023 - Elsevier
Thermal utilization of hydrogen is becoming increasingly important as the climate change
progresses. Fossil fuels such as natural gas are replaced by green hydrogen in the natural …

Numerical and experimental study of swirl premixed CH4/H2/O2/CO2 flames for controlled-emissions gas turbines

A Ali, MA Nemitallah, A Abdelhafez, B Imteyaz… - International Journal of …, 2020 - Elsevier
Stoichiometric hydrogen-enriched oxy-methane (CH 4/H 2/O 2/CO 2) flames are
investigated numerically by large eddy simulations (LES) and experimentally in a premixed …

Adiabatic flame temperature for controlling the macrostructures and stabilization modes of premixed methane flames in a model gas-turbine combustor

A Abdelhafez, MA Nemitallah, SS Rashwan… - Energy & …, 2018 - ACS Publications
Premixed oxygen-enriched air-methane flames (CH4/O2/N2) are compared with their oxy-
methane counterparts (CH4/O2/CO2) in the same model gas-turbine combustor and under …

Study on premixed flame dynamics of CH4/O2/CO2 mixtures

L Zheng, D Du, J Wang, Z Dou, X Wang, H Jin, Y Wang - Fuel, 2019 - Elsevier
In order to study the flame dynamics characteristics of premixed CH 4/O 2/CO 2 mixtures, a
series of experiments were carried out in an elongated square duct. The equivalence ratio ϕ …