Results 21 to 30 of about 5,408,206 (144)

Effects of Flame Propagation Velocity and Turbulence Intensity on End-Gas Auto-Ignition in a Spark Ignition Gasoline Engine

Energies, 2020
Knocking is a destructive and abnormal combustion phenomenon that hinders modern spark ignition (SI) engine technologies. However, the in-depth mechanism of a single-factor influence on knocking has not been well studied.
Lei Zhou, Xiaojun Zhang, Lijia Zhong, Jie Yu   +3 more
doaj   +1 more source

Unstable behaviors of cellular premixed flames caused by hydrodynamic and diffusive-thermal instabilities under high- and low-temperature environment

Nihon Kikai Gakkai ronbunshu, 2016
Unstable behaviors of cellular premixed flames caused by hydrodynamic and diffusive-thermal instabilities under high- and low-temperature environment were studied numerically.
Satoshi KADOWAKI, Taisuke WASHIO, Thwe Thwe Aung, Wataru YAMAZAKI, Toshiyuki KATSUMI, Hideaki KOBAYASHI   +5 more
doaj   +1 more source

Experimental studies of CAI combustion in a four-stroke GDI engine with an air-assisted injector [PDF]

, 2007
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.CAI combustion and the factors affecting it were intensively investigated in a single cylinder, air-assisted gasoline direct injection engine.
Brouzos, Nikolaos P
core   +6 more sources

Exhaust Gas Analysis of Firewood Combustion Processes: Application of a Robust Thermoelectric Gas Sensor

Proceedings, 2017
The quality of firewood combustion processes can be considerably improved by automated control of the combustion air streams. For this purpose, continuous flue gas analysis using in-situ sensors is essential.
Binayak Ojha, Gunter Hagen, Heinz Kohler, Ralf Moos   +3 more
doaj   +1 more source

Combustion analysis in a natural gas engine with pre-chamber by three-dimensional numerical simulation

Nihon Kikai Gakkai ronbunshu, 2015
Highly efficient natural gas engines have been widely used in wide range of sectors from industry and transportation. However, because combustion process in gas engines with a pre-chamber is very complicated, it is difficult to experimentally investigate
Satoshi HOKIMOTO, Tatsuya KUBOYAMA, Yasuo MORIYOSHI, Toshio YAMADA   +3 more
doaj   +1 more source

Modeling and Efficiency Optimization of Steam Boilers by Employing Neural Networks and Response-Surface Method (RSM)

Mathematics, 2019
Boiler efficiency is called to some extent of total thermal energy which can be recovered from the fuel. Boiler efficiency losses are due to four major factors: Dry gas flux, the latent heat of steam in the flue gas, the combustion loss or the loss of ...
Heydar Maddah, Milad Sadeghzadeh, Mohammad Hossein Ahmadi, Ravinder Kumar, Shahaboddin Shamshirband   +4 more
doaj   +1 more source

Laminar Burning Velocity of Ammonia‐Hydrogen Mixtures Predicted by Machine Learning

Chemie Ingenieur Technik, EarlyView.
Ammonia–hydrogen blends aid defossilization, but slow combustion kinetics require complex modeling. Although chemical kinetic modeling is computationally expensive, machine learning surrogates offer fast predictions. This study trained GPR, DT, and ANN models on 1445 experimental points.
Georg Klepp, Aditya Sharma, Helene Dörksen   +2 more
wiley   +1 more source

A numerical study of propane-air combustion in meso-scale tube combustors with concentric rings

Journal of Thermal Science and Technology, 2015
Dwindling energy resources and strong demand for better power sources as compared to conventional batteries have sparked research interest in micro power generation.
Fudhail Abdul MUNIR, Masato MIKAMI
doaj   +1 more source

Ni–Pd Catalytic Synergy on Rod‐Shaped CeO2 for Boosting Low‐Temperature CH4 Oxidation

EcoEnergy, EarlyView.
Introducing Ni into Pd/CeO2 markedly accelerates deep CH4 oxidation by inducing a synergistic interaction between Ni and Pd species. This synergistic effect significantly improves low‐temperature activity and long‐term stability, providing a rational strategy for efficient CH4 abatement over Pd‐based catalysts under lean CH4 conditions while reducing ...
Linsheng Xu, Hao Guo, Zekai Cui, Yan Sun, Jing Xiong, Yuechang Wei   +5 more
wiley   +1 more source

Investigation the coal thermal characteristics influence on combustion process in the furnace [PDF]

E3S Web of Conferences
The article presents the study results on the possibility of burning the bituminous coal instead the lignite in the boiler BKZ-420-140 type. The study objectives are to determine the influence of coals thermal characteristics on the combustion efficiency
Prokhorov Vadim, Chernov Sergey, Fomenko Mikhail, Fomenko Nadezhda, Kremer Alisa   +4 more
doaj   +1 more source