Results 21 to 30 of about 12,068 (311)
Energies, 2018 The overall chemical rate and chemical effect of CF3Br, 2-BTP and 2-BTP/CO2 with hydrocarbon flames are calculated using the perfectly stirred reactor (PSR) model. The chemical effects of CF3Br with CH4/air flames always inhibit combustion.
Ping Li +3 more
doaj +1 more source
Heliyon, 2023 Lean boosting is a low-temperature combustion technology that can contribute to the expansion of the operation range by reducing the pressure increase rate and the combustion temperature owing to the increase in the intake air amount, even though the ...
Changgi Kim +3 more
doaj +1 more source
Large Eddy Simulations of gaseous flames in gas turbine combustion chambers [PDF]
, 2012 Recent developments in numerical schemes, turbulent combustion models and the regular increase of computing power allow Large Eddy Simulation (LES) to be applied to real industrial burners.
Staffelbach, Gabriel +2 more
core +1 more source
Analysis of Combustion Instability for a Natural Gas Engine with Lean-burn Conditions [PDF]
Zhengzhou Daxue xuebao. Gongxue banTo study the variation law of combustion instability of natural gas engine with lean-burn condition,experiments were carried out on a natural gas engine with six different excess air coefficients with the condition of25% load and 1 000 r / min.
DING Shunliang +4 more
doaj +1 more source
An algorithm for LES of premixed compressible flows using the Conditional Moment Closure model [PDF]
, 2011 A novel numerical method has been developed to couple a recent high order accurate fully compressible upwind method with the Conditional Moment Closure combustion model. The governing equations, turbulence modelling and numerical methods are presented
Bilger, R. W. +7 more
core +1 more source
Lean Combustion Technology for Internal Combustion Engines: a Review
Science and Technology, 2012 Lean burn is an effective way to improve spark ignition engine fuel economy. Lean combustion is generally considered as a timely solution to the more stringent environmental regulations and global weather concerns in the new era. However, the instability associated with the lean flame significantly keeps the lean combustion technique from being widely ...
Danaiah P., Ravi Kumar P, Vinay Kumar D.
openaire +2 more sources
Performance Evaluation of an Ultra-Lean Combustion Studies in IC Engines
MATEC Web of Conferences, 2016 An investigation was made to determine the effects of ethanol at ultra-lean effective systems utilizing an experimental study. The present study is planned to develop and evaluate the performance, emission and combustion characteristics of the ultra-lean
Puli Ravi Kumar +4 more
doaj +1 more source
International Journal of Automotive Engineering, 2015 This paper aims to improve thermal efficiency of spark ignition engine by numerical calculation with detailed chemistry. Experimental results from a four-stroke-single-cylinder engine are compared with that of simulations. It is experimentally found that
Ratnak Sok +4 more
doaj +1 more source
Fuel Processing TechnologyHydrogen enrichment of gasoline in spark-ignition engines represents a promising pathway for improving combustion stability and extending lean-burn operating limits while reducing harmful emissions. However, the quantitative relationship between hydrogen
Michal Puškár, Melichar Kopas
doaj +1 more source
Impact of hydrogen direct injection on engine combustion and emissions in a GDI engine
Advances in Mechanical Engineering, 2023 The combustion and emission characteristics of a hydrogen engine were investigated through experimental analysis using a GDI engine. To enable hydrogen in-cylinder direct injection, a specialized hydrogen gas injector was employed. A comparative analysis
Lei Wang +4 more
doaj +1 more source