Results 11 to 20 of about 566,013 (230)

Investigation of combustion and performance characteristics of CAI combustion engine with positive and negative valve overlap [PDF]

open access: yes, 2008
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.In the first part of studies, Controlled Auto-Ignition (CAI) combustion was investigated in a Ricardo E6 single cylinder, four stroke gasoline engine.
Yang, Changho
core   +7 more sources

Modelling of premixed combustion in a gas turbine [PDF]

open access: yes, 1998
Three steady state combustion models, two turbulence models and a model for tK'6 prediction of NO., were implemented and investigated on a simple backward facing step experiment as well as an experimental lean prevaporised premixed (LPP) combustor ...
Engelbrecht, Geoffrey E.
core   +7 more sources

The influence of fuel structure on CO and NOx formation in lean premixed hydrocarbon flames [PDF]

open access: yes, 1978
A study is made of the influence chemical structure of fuel has upon combustion performance through tracing the generation of carbon monoxide and oxides of nitrogen in lean, premixed, hydrocarbon-air flames.
Saleh, H. S. M.
core   +7 more sources

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

open access: yes, 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   +7 more
core   +1 more source

Numerical analysis of reaction-diffusion effects on species mixing rates in turbulent premixed methane-air combustion [PDF]

open access: yes, 2009
The scalar mixing time scale, a key quantity in many turbulent combustion models, is investigated for reactive scalars in premixed combustion. Direct numerical simulations (DNS) of three-dimensional, turbulent Bunsen flames with reduced methane-air ...
Grout, R.W.   +7 more
core   +1 more source

Moving on - beyond lean thinking [PDF]

open access: yes, 2004
Lean Thinking is currently often positioned as the underlying theory of lean production among practitioners and academics, although its originators, Womack and Jones, seem not to have presented it as a theory. This paper endeavors to analyze whether Lean
Koskela, Lauri
core   +4 more sources

Combustion Analysis of Ammonia Fueled High Compression Ratio SI Engine with Glow Plug and Sub-Chamber

open access: yesInternational Journal of Automotive Engineering, 2022
Ammonia is a kind of energy carrier of hydrogen, and its use as engine fuel has been studied. However, it requires overcoming shortcomings of low combustion speed. We focus that the laminar combustion velocity of gasoline mixture with an excess air ratio
Bin Guo   +6 more
doaj   +1 more source

Numerical Investigation of the Chemical Effect and Inhibition Effect Improvement of C3H2F3Br (2-BTP) Using the Perfectly Stirred Reactor Model

open access: yesEnergies, 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

Numerical investigation of the premixed V-flame stabilization and blowout [PDF]

open access: yesمهندسی مکانیک شریف, 2021
Global warming and high fossil fuel consumption increase the application of the low-Nox burner with lean-premixed combustion. However, this type of combustion is more susceptible to thermoacoustic instabilities.
N. Nabatian
doaj   +1 more source

Optical Investigation of a Partial Fuel Stratification Strategy to Stabilize Overall Lean Operation of a DISI Engine Fueled with Gasoline and E30

open access: yesEnergies, 2021
This paper offers new insights into a partial fuel stratification (PFS) combustion strategy that has proven to be effective at stabilizing overall lean combustion in direct injection spark ignition engines.
Cinzia Tornatore, Magnus Sjöberg
doaj   +1 more source

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