Results 161 to 170 of about 4,614 (206)

Jet Engine Soot Emission Measured at Altitude

Journal of Aircraft, 1974
The state of knowledge concerning engine design to minimize air pollution is believed to be such that emission products can be reliably predicted while the engine is still on the drawing board. More effort is now being made to measure emission products from engines operating under cruise conditions.
J. M. Rosen, R. Greegor
openaire   +1 more source

Reduced soot/particulate emission during vessel manoeuvring

MTZ worldwide, 2003
Soot emission during the manoeuvring of vessels is an issue that is to a great extent insufficiently resolved in practice even for engines operating without a visible exhaust gas plume under steady-state conditions. This article describes measures aimed at improving transient operation investigated by MAN B&W Diesel within the research project “Clean ...
Fritz Fleischer, Kurt-Wolfgang Gratza
openaire   +1 more source

Soot and Unburnt Liquid Hydrocarbon Emissions from Diesel Engines

Combustion Science and Technology, 1988
A direct injection (OI) and an indirect injection (IDI) diesel engine have been used to study the effect of engine type on soot and unburnt liquid hydrocarbons contained in diesel exhausts as a function of the air/fuel mass ratio, . The impact of the broadening fuel specifications on diesel emissions has been investigated for both engines burning four ...
R. Barbella, C. Bertoli, A. Ciajolo, D'ANNA, ANDREA   +3 more
openaire   +4 more sources

Aerosol‐Cloud Interactions From Aviation Soot Emissions

Journal of Geophysical Research: Atmospheres
AbstractCurrent models estimate global aviation contributes approximately 5% to the total anthropogenic climate forcing, with aerosol‐cloud interactions having the greatest effect. However, radiative forcing estimates from aviation aerosol‐cloud interactions remain undetermined.
Alyssa N. Alsante, Meng‐Dawn Cheng
openaire   +1 more source

Two-dimensional two-wavelength emission technique for soot diagnostics

Applied Optics, 2001
A two-dimensional soot diagnostic technique has been developed as an extension of the well-known two-color pyrometry. Two flame images are simultaneously collected on a CCD at selected wavelengths through suitable optics. By use of the dependence of soot emissivity on the soot volume fraction and by comparison with images from a calibrated light source,
Cignoli F, De Iuliis S, Manta V, Zizak G
openaire   +4 more sources

Modelling soot and SOF emissions from a diesel engine

Chemosphere, 2004
Modelling of soot and SOF emissions from a typical European turbocharged diesel engine has been made. The model consists of a detailed kinetic mechanism with 472 reactions (120 chemical species) and data from the thermodynamic diagnostic procedure of the combustion process of the engine.
A, Durán, M, Carmona, J M, Monteagudo
openaire   +2 more sources

Experimental Analysis of Soot Formation in Sooting Diffusion Flame by Using Laser-Induced Emissions

Journal of Engineering for Gas Turbines and Power, 2005
Two-dimensional images of OH fluorescence, polycyclic aromatic hydrocarbons (PAHs) fluorescence, and laser-induced incandescence (LII) from soot were measured in a sooting diffusion flame. To obtain an accurate OH fluorescence image, two images were taken with the laser wavelength tuned to (“on”) and away from (“off”) the OH absorption line.
Kazuhiro Hayashida, Kenji Amagai, Keiji Satoh, Masataka Arai   +3 more
openaire   +1 more source

Modeling NO and Soot Emissions With Gas Compressibility

Volume 1: Diesel Combustion and Emissions, Fuel Injection and Sprays, 2001
Abstract A multidimensional engine combustion code was used to model NO and soot emissions from a heavy duty Cummins Diesel engine with a compression ratio of 16. The code solves the gas calculation in a moving curvilinear coordinate system.
Chia-fon F. Lee, Hatem M. Wasfy
openaire   +1 more source

Soot Emission from a Direct Injection Diesel Engine

SAE Technical Paper Series, 2004
<div class="htmlview paragraph">This study analyzes the mass, number density and size of the soot formed and oxidized inside a direct injection diesel engine. The predictions were made using the modified KIVA-3V code with the Foster soot model for the different engine operating variables.
Sangsu Lee, Dongheun Shin, Jeongmin Lee, Nakwon Sung   +3 more
openaire   +1 more source

Prediction of Soot Emissions in Gas-Turbine Combustors

Journal of Propulsion and Power, 1997
From a large number of experimental data, a formulation was developed for predicting the smoke number (SN) as measured in gas-turbine exhausts according to the well-established Society of Automotive Engineers standard. Three different scales of the same combustor were used with inlet temperature and pressure ranging from 300 to 600 K and from 0.1 to 0 ...
A. De Champlain, D. Kretschmer, J. Tsogo, G. F. Pearce   +3 more
openaire   +1 more source