Results 31 to 40 of about 147,947 (209)

Optimization of a Heavy-Duty Hydrogen-Fueled Internal Combustion Engine Injector for Optimum Performance and Emission Level

Applied Sciences
Hydrogen is a promising zero-carbon fuel for internal combustion engines; however, the geometric optimization of injectors for low-pressure direct-injection (LPDI) systems under lean-burn conditions remains underexplored.
Murat Ozkara, Mehmet Zafer Gul
doaj   +1 more source

Coal combustion modelling in a frontal pulverized coal-fired boiler

E3S Web of Conferences, 2018
The paper presents results of numerical modelling of pulverized coal combustion process in the coal-fired boiler. In the numerical model, coal combustion process includes particle heating, devolatilization, char combustion, as well as turbulent flow and ...
Madejski Paweł
doaj   +1 more source

A dynamic combustion model for supersonic turbulent combustion

, 2023
Supersonic combustion plays a vital role in various applications, including scramjets, dual-mode ramjets, and pulse detonation engines. However, the flame characteristics can vary significantly, depending on the application. To model supersonic combustion, large eddy simulation coupled with a partially stirred reactor (PaSR) is commonly used.
Zhu, Xu, An, Jian, Wang, Nana, Zhang, Jian, Ren, Zhuyin   +4 more
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Detailed Operational Mapping of a Grate Fired Biomass Combustion Plant for Improved Combustion Process Control

Chemical Engineering Transactions, 2016
Biomass combustion plants in Norway are facing stricter emission regulations and lower profitability, mostly due to low energy prices. Hence, performance optimization through improved combustion process control and/or retrofitting becomes very attractive
R. Khalil, A. Malik, X. Ku, O. Skreiberg, M. Fossum, M. Becidan, T. Lovas   +6 more
doaj   +1 more source

Mathematical modelling and experimental study of straw co-firing with gas

Mathematical Modelling and Analysis, 2019
The main goal of the present study is to promote a more effective use of agriculture residues (straw) as an alternative renewable fuel for cleaner energy production with reduced greenhouse gas emissions.
Inesa Barmina, Harijs Kalis, Antons Kolmickovs, Maksims Marinaki, Liiva Ozola, Uldis Strautins, Raimonds Valdmanis, Maija Zake   +7 more
doaj   +1 more source

Interpreting dissolved gases in transformer oil: A new method based on the analysis of labelled fault data

IET Generation, Transmission & Distribution, 2021
In this contribution, a new dissolved gas analysis (DGA) method combining key gases and ratio approaches for power transformer fault diagnostic is presented. It is based on studying subsets and uses the five main hydrocarbon gases including hydrogen (H2),
Arnaud Nanfak, Samuel Eke, Charles Hubert Kom, Ruben Mouangue, Issouf Fofana   +4 more
doaj   +1 more source

A MODEL FOR POROUS-MEDIUM COMBUSTION

The Quarterly Journal of Mechanics and Applied Mathematics, 1989
Summary: A model of time-dependent porous-medium combustion is presented. The model is of combustion in a three-dimensional porous medium. The typical situation envisaged is the combustion of a non-deforming porous solid medium through which a gas such as air passes.
Norbury, J., Stuart, A. M.
openaire   +4 more sources

Numerical investigation of fluid structure interaction between unsteady flow and vibrating liner in a combustion chamber [PDF]

, 2007
Numerical investigations of fluid structure interaction between unsteady flow\ud and vibrating liner in a combustion chamber are undertaken. The computational study consist of two approaches.
Cooper, R.K., Khatir, Z., Kok, J.B.W., Pozarlik, A.K., Watterson, J.W.   +4 more
core   +1 more source

Radiative heat transfer during turbulent combustion [PDF]

, 2009
We investigate the radiative heat transfer in a co-flowing turbulent nonpremixed propane-air flame inside a three-dimensional cylindrical combustion chamber.
Paul, M.C., Paul, S.C.
core   +1 more source

A Generalised Series Model for the LES of Premixed and Non-Premixed Turbulent Combustion

Energies
In this study, the generality and prediction accuracy of a generalised series model for the large eddy simulation of premixed and non-premixed turbulent combustion is explored. The model is based on the Taylor series expansion of the chemical source term
Weilin Zeng, Xujiang Wang, Kai Hong Luo, Konstantina Vogiatzaki, Salvador Navarro-Martinez   +4 more
doaj   +1 more source