Results 21 to 30 of about 6,777 (264)

Are the available data from laboratory spray burners suitable for CFD modelling validations? A review

Energy Conversion and Management: X, 2022
A systematic compilation and evaluation of turbulent spray flame combustion data acquired from lab-scale spray-burners and CFD models validated with these are presented.
A.V. Brito Lopes, N. Emekwuru, K. Joshi
doaj   +1 more source

A control orientated combustion model.

IFAC Proceedings Volumes, 2012
Abstract The control of Internal Combustion (IC) engines is dominated by conventional controllers that regulate the engine operating condition to set-points, which are usually derived from steady-state testing. A significant issue is that IC engines can spend much of their time operating under transient conditions, which take the engine away from ...
Fussey, P, Limebeer, D
openaire   +1 more source

Influence of Eddy-Generation Mechanism on the Characteristic of On-Source Fire Whirl

Applied Sciences, 2019
This paper numerically examines the characterisation of fire whirl formulated under various entrainment conditions in an enclosed configuration. The numerical framework, integrating large eddy simulation and detailed chemistry, is constructed to assess ...
Cheng Wang, Anthony Chun Yin Yuen, Qing Nian Chan, Timothy Bo Yuan Chen, Qian Chen, Ruifeng Cao, Ho Lung Yip, Sanghoon Kook, Guan Heng Yeoh   +8 more
doaj   +1 more source

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

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
openaire   +2 more sources

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

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

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

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +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