Results 251 to 260 of about 56,122 (303)

NO(x) model for lean combustion concept

28th Joint Propulsion Conference and Exhibit, 1992
In an effort to reduce the emissions produced by gas turbine combustors to meet the expected trends of more stringent regulations, a model to calculate NOx produced by lean combustion concepts is proposed. The model simulates the combustor by a number of reactors representing the main combustion as well as pilot zones.
N. K. Rizk, H. C. Mongia
openaire   +1 more source

Highly Preheated Lean Combustion

2016
This chapter faces with the outstanding challenge of giving an objective and quantitative classification of moderate and intense low oxygen dilution (MILD)/high-temperature air combustion (HiTAC) combustion regimes based on measurable process status variables (ie, temperature and/or temperature increase).
Cavaliere, A., de Joannon, M., Sabia, P., Sorrentino, G., Ragucci, R.   +4 more
openaire   +2 more sources

Highly Preheated Lean Combustion

2008
The terms “high temperature air combustion (HiTAC)” and “moderate and intense low-oxygen dilution (MILD)” combustion have only recently been defined. First published in the Combustion Institute Proceedings in 1998 (Katsuki and Hasegawa, 1998) and then in the Mediterranean Combustion Symposium Proceedings in 2000 (de Joannon et al., 2000), the ...
A Cavaliere, M de Joannon, R Ragucci
openaire   +4 more sources

Multipoint Spark Ignition for Lean Combustion

SAE Technical Paper Series, 1985
<div class="htmlview paragraph">Effects of multipoint spark ignition on combustion duration, fuel consumption and lean misfire limit are discussed in this paper.</div> <div class="htmlview paragraph">A plate, which consists of 12 spark gaps in each cylinder, and a new CD ignition system have been developed for accomplishing the ...
Norihiko Nakamura, Toyokazu Baika, Yoshiaki Shibata   +2 more
openaire   +1 more source

Engine Control System for Lean Combustion

SAE Technical Paper Series, 1987
<div class="htmlview paragraph">The basic structure of a new engine control system for lean combustion is presented. A fuel atomizer is adopted to obtain a uniform mixture of fine fuel droplets, 40µm in diameter. A new air-fuel ratio sensor and an integrated control method for air flow are developed for precise and rapid response control of ...
T. Yamauchi, T. Nogi
openaire   +1 more source

Vortex Generators in Lean-Premix Combustion

Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, 1998
A novel fuel-air mixing technique on the basis of vortex generators has been developed and successfully implemented in the worlds first lean-premix reheat combustor of ABB’s GT24/GT26 series industrial gas turbines. This technique uses a special arrangement of delta-wing type vortex generators to achieve rapid mixing through longitudinal vortices ...
A. Eroglu, K. Do¨bbeling, F. Joos, P. Brunner   +3 more
openaire   +1 more source

Lean low NOx combustion concept evaluation

Symposium (International) on Combustion, 1991
To investigate the potential of using the lean combustion concept to significantly reduce the emission of NO x from gas turbine combustors, a data analysis was conducted. The combustor tested comprises a prechamber in which the fuel is vaporized and mixed with air, pilot chamber, and main combustion chamber.
N.K. Rizk, H.C. Mongia
openaire   +1 more source

Catalyst Selection for Lean Combustion Engines

SAE Technical Paper Series, 1987
<div class="htmlview paragraph">A modeling procedure for selecting exhaust gas oxidation catalysts was applied to a lean air/fuel, high compression engine. The procedure was used to select the lowest cost catalyst that could meet given CVS C/H emission targets.
M. R. Vaughen, R. H. Hammerle
openaire   +1 more source

SPONTANEOUS OSCILLATIONS IN LEAN PREMIXED COMBUSTION

Combustion Science and Technology, 2002
The combustion reaction taking place under the typical operating conditions of lean premixed combustors was studied by mans of the bifurcation theory. The combustion zone was modeled as perfectly mixed and without coupling with acoustic. Theoretical stability amps were built as a function of the most important operating parameters (heat transfer ...
RUSSO, GENNARO, DI BENEDETTO A. MARRA F.
openaire   +8 more sources

Application of Macrolamination Technology to Lean, Premix Combustion

Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, 2000
Macrolamination, a novel manufacturing technique, is used to develop a dual-fuel premixer. A spatially distributed injection strategy is used to enhance fuel placement, distribution, and mixing inside the premixer. Parametric studies are conducted with different configurations of the premixer to determine the effects of residence time and nozzle ...
A. Mansour, M. Benjamin, D. L. Straub, G. A. Richards   +3 more
openaire   +1 more source