Results 221 to 230 of about 5,392,680 (276)

Soot concentration field of turbulent propane/air diffusion flames

Symposium (International) on Combustion, 1977
A systematic study has been made of soot concentration in free turbulent propane/air diffusion flames. Sampling probes and a lightscatter technique were used; the latter also allowed detection of soot concentration fluctuations. The relative intensity of the fluctuations is very high, while the integral spatial scale is rather small.
H.A. Becker, S. Yamazaki
openaire   +1 more source

Ambient air soot concentrations in Munich public transportation systems

Science of The Total Environment, 1997
Airborne soot concentrations in fine dust up to 10 μm mean particle diameter were measured in seven buses and tramways during regular rides in 4 h periods at different daytimes in Munich. With regard to the traffic-related measurements, the main part of particle emissions is caused by motor vehicles.
M. Zielinski, H. Römmelt, G. Fruhmann
openaire   +1 more source

Laser induced incandescence for soot concentration measurements in turbine engine exhausts

40th AIAA Aerospace Sciences Meeting & Exhibit, 2002
T. Jenkins, J. Bartholomew, P. DeBarber, P. Yang, J. Seitzman, R. Howard   +5 more
openaire   +2 more sources

Soot load versus aromatic concentration in diesel oil premixed flames

Fuel, 2001
Soot production of diesel oil, characterised by a well-defined aromatic content, was investigated in rich premixed flames by laser extinction technique. By analysing the soot plume, a criterion to assign a ranking in sooting tendency was found, based on the connection between the maximum soot volume fraction detected along the flame axis, fvM, and the ...
Cignoli F, De Iuliis S, Zizak G
openaire   +3 more sources

Application of machine learning for the low-cost prediction of soot concentration in a turbulent flame

Environmental science and pollution research international, 2022
A. Khanehzar, M. Jadidi, L. Zimmer, S. Dworkin   +3 more
semanticscholar   +1 more source

Preferential diffusion and concentration modification in sooting counterflow diffusion flames

Symposium (International) on Combustion, 1989
An experimental investigation has been conducted on the influence of the mobility of inert additives on soot formation in propane and ethylene counterflow diffusion flames. Inerts used were helium, neon, argon, or krypton, and the results show that while the mobility of the inert has practically no effect when a small amount of inert is added to the ...
R.L. Axelbaum, C.K. Law, W.L. Flower
openaire   +1 more source

Concentration and mass distribution of charged species in sooting flames

Symposium (International) on Combustion, 1975
Total concentration and mass distribution of charged species larger than about 300 amu were measured along the centerline of a premixed sooting acetylene/oxygen flat flame at 20 mmHg. Charge concentration was determined by measuring the electric current delivered to a Faraday cage in the detection chamber of a staged molecular beam flame sampling ...
B.L. Wersborg, A.C. Yeung, J.B. Howard
openaire   +1 more source

Concentration and Temperature Effects on Soot Formation in Diffusion Flames

1994
The effects of fuel dilution on soot formation in laminar diffusion flames is investigated. The lower soot formation rate observed is due to a combination of concentration, temperature and residence time effects. Based on local measurements of the temperature, temperature seems to be the most important effect.
Robert J. Santoro, Thomas F. Richardson
openaire   +1 more source

Pcdd/F-concentrations in chimney soot from house heating systems

Chemosphere, 1988
Abstract 50 different chimney soot samples from house heating in the area of Bayreuth, Germany, were analyzed for PCDD/F. The furnaces operated with wood, coal, wood/coal or oil. PCDD/F were detected in all samples and their isomer patterns were similar to those from municipal waste incinerators.
openaire   +1 more source

Influence of Soot Agglomerate Morphology on Radiative Properties in Concentration Detection

2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control, 2014
Solar radiation is strongly absorbed by soot aggregate. And the atmospheric radiative properties will be affected by the change of aggregate morphology. Based on fractal theory, the morphological properties of soot aggregates are studied using the cluster-cluster aggregation (CCA) model. The superposition Tmatrix method is employed to perform extensive
Jinying Yin, Hongyan Yang, Siqi Zhang, Yong Qin, Zhen Zhou   +4 more
openaire   +1 more source