Results 31 to 40 of about 1,216,705 (204)

Effects of fuel-hydrogen levels on combustion, operability, and emission parameters of CH4/H2/O2/CO2 stratified flames in a dual-swirl gas turbine burner

Engineering Applications of Computational Fluid Mechanics, 2023
Towards the development of emission-free hydrogen gas turbines with wider operability limits, the combined effects of lean premixed combustion, dual combustion (combustion staging), hydrogen enrichment, and oxy-fuel combustion on the combustion and ...
Medhat A. Nemitallah, Sami K. Aljehani, Md Azazul Haque   +2 more
doaj   +1 more source

Study on the Combustion Behavior of Inhomogeneous Partially Premixed Mixtures in Confined Space

Energies
Reasonably configuring the concentration distribution of the mixture to achieve partially premixed combustion has been proven to be an effective method for improving energy utilization efficiency.
Yanfei Li, Xin Zhang, Lichao Chen, Ying Liu   +3 more
doaj   +1 more source

Effect of Air-excess on Blends of RON70 Partially Premixed Combustion [PDF]

Flow, Turbulence and Combustion, 2015
Partially Premixed Combustion (PPC) is a combustion concept that aims to provide combustion with low smoke and NOx emissions and a high thermal efficiency. Extending the ignition delay to enhance premixing, avoiding spray-driven combustion, and controlling temperature at an optimum level through use of suitable dilution levels has been recognized as a ...
Wang, S., Bakker, P.C., Visser, de, A.J.M., Somers, L.M.T.   +3 more
openaire   +2 more sources

Impact of Hydrogen/Natural Gas Blends on Partially Premixed Combustion Equipment: NO_x Emission and Operational Performance

Energies, 2022
Several North American utilities are planning to blend hydrogen into gas grids, as a short-term way of addressing the scalable demand for hydrogen and as a long-term decarbonization strategy for ‘difficult-to-electrify’ end uses. This study documents the
Paul Glanville, Alex Fridlyand, Brian Sutherland, Miroslaw Liszka, Yan Zhao, Luke Bingham, Kris Jorgensen   +6 more
doaj   +1 more source

Large Eddy Simulation of combustion instabilities in a lean partially premixed swirled flame [PDF]

, 2012
This paper investigates one issue related to Large Eddy Simulations (LES) of self- excited combustion instabilities in gas-fueled swirled burners: the effects of incom- plete mixing between the gas injection and the combustion chamber.
Thierry Poinsot, Franzelli, Benedetta Giulia, Benedetta Franzelli, Gicquel, Laurent Y.M., Laurent Y.M. Gicquel, Eleonore Riber, Riber, Eleonore, Poinsot, Thierry   +7 more
core   +1 more source

Measurement and Identification of Flame Describing Function (FDF) Based on Parallel Subsystem Model

Aerospace
Because of the need for low pollutant emissions, industrial gas turbines typically use partially premixed gases for combustion. However, the nonlinear dynamic characteristics of partially premixed flames have not been studied sufficiently.
Zhaohui Wang, Yichen Wang, Min Zhu
doaj   +1 more source

Effect of Pressure, Environment Temperature, Jet Velocity and Nitrogen Dilution on the Liftoff Characteristics of a N2-in-H2 Jet Flame in a Vitiated Co-flow

Eurasian Chemico-Technological Journal, 2014
The CO2 emission prevention advantage of generating power with high hydrogen content fuels using gas turbines motivates an improved understanding of the ignition behavior of hydrogen in premixed and partially premixed environments.
A. North, M. Magar, J. Y. Chen, R. Dibble, A. Gruber   +4 more
doaj   +1 more source

Global and Detailed Calculation of Tube Wall Temperature in a Process Furnace Steam Superheater

Chemie Ingenieur Technik, EarlyView.
This study presents a comparison between an iterative global model and multiple approaches to a new non‐iterative model with the purpose of predicting tube wall temperature of a superheater. The results show that the non‐iterative method achieves sufficient accuracy while improving the prediction of local temperature distribution and better ...
Anežka Michálková, Zdeněk Jegla
wiley   +1 more source

Partially-charged advanced low-temperature combustion in diesel engine: Progress and prospects

Alexandria Engineering Journal
Stringent mandates relating to emission management forced scientists, engine manufacturers, and policymakers to have more tightly bound relationships aiming at the strategies of cleaner combustion and more efficient fuel use from internal combustion ...
Thanh Tuan Le, Dhinesh Balasubramanian, Anh Tuan Le, Dao Nam Cao, Wei-Hsin Chen, Inbanaathan Papla Venugopal, Ümit Ağbulut, Thanh Hai Truong, Xuan Phuong Nguyen, Van Ga Bui, Anh Tuan Hoang   +10 more
doaj   +1 more source

Partially-Premixed Flames in Internal Combustion Engines [PDF]

, 2003
This was a joint university-industry research program funded by the Partnerships for the Academic-Industrial Research Program (PAIR). The research examined partially premixed flames in laboratory and internal combustion engine environments at Vanderbilt University, University of Michigan, and General Motors Research and Development.
Pitz, Robert W., Drake, Michael C., Fansler, Todd D., Sick, Volker   +3 more
openaire   +2 more sources