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This paper investigates the effect of inclined angle of fuel jet on concentration of NOx emission in high temperature air combustion furnace. Computational Fluid Dynamics (CFD) modeling was implemented to investigate the combustion process and NOx formation in the furnace. The CFD model presented in this paper is validated by comparing the modeling results with measured data. The results show that...
This paper presents a new approach for on-line identification of fuel type by combining the joint probability density arbiter and support vector machine techniques. The flame features are extracted both in the time domain and frequency domain from each flame oscillation signal and form an original feature vector. Orthogonal and dimension-reduced features are obtained by using the principal component...
In this paper, Support Vector Machines (SVM) technique was used to identify fuel types. Flame oscillation signal were captured by a three-cell flame monitor. Thirty flame features were extracted from each flame signal. Then Principal Component Analysis (PCA) was used to choose the principal components of each features vector that represent over 99 percent variations of the features vector. An SVM...
Dimethyl ether (DME) is a promising and excellent alternative fuel for compression ignition DI diesel engines. In addition to the significant merit of no soot emission, DME would be of better ignition quality, lower auto ignition temperature and better atomization compared to diesel. The paper presents models and simulates fuel injection system of DME engine. The dynamic simulation and analysis of...
Dimethyl ether (DME) can be used as a clean high-efficiency compression ignition fuel with reduced NOx, SOx, COx and particulate matter. The subject of this work is to investigate of the injection characteristics of diesel and DME within the same specifications of injection system. The mathematical model is established for the conventional pump-pipe-nozzle fuel injection system and numerical simulation...
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