Modeling the Use of Air-injection for Emissions Reduction in a Direct-injected Diesel Engine PDF Download
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Author: Daniel K. Mather
Publisher:
ISBN:
Category :
Languages : en
Pages : 210
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Book Description
Author: Daniel K. Mather
Publisher:
ISBN:
Category :
Languages : en
Pages : 210
Get Book Here
Book Description
Author: Daniel K. Mather
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: P. A. Lakshminarayanan
Publisher: Springer Science & Business Media
ISBN: 904813885X
Category : Technology & Engineering
Languages : en
Pages : 313
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Book Description
Phenomenology of Diesel Combustion and Modeling Diesel is the most efficient combustion engine today and it plays an important role in transport of goods and passengers on land and on high seas. The emissions must be controlled as stipulated by the society without sacrificing the legendary fuel economy of the diesel engines. These important drivers caused innovations in diesel engineering like re-entrant combustion chambers in the piston, lower swirl support and high pressure injection, in turn reducing the ignition delay and hence the nitric oxides. The limits on emissions are being continually reduced. The- fore, the required accuracy of the models to predict the emissions and efficiency of the engines is high. The phenomenological combustion models based on physical and chemical description of the processes in the engine are practical to describe diesel engine combustion and to carry out parametric studies. This is because the injection process, which can be relatively well predicted, has the dominant effect on mixture formation and subsequent course of combustion. The need for improving these models by incorporating new developments in engine designs is explained in Chapter 2. With “model based control programs” used in the Electronic Control Units of the engines, phenomenological models are assuming more importance now because the detailed CFD based models are too slow to be handled by the Electronic Control Units. Experimental work is necessary to develop the basic understanding of the pr- esses.
Author: Daniel K. Mather
Publisher:
ISBN:
Category :
Languages : en
Pages : 538
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Author: Michael F. Stoia
Publisher:
ISBN:
Category :
Languages : en
Pages : 272
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Development of models for direct injection diesel performance and emissions Of NOx and soot are the goals of this research. The simplest models investigated are flame temperature correlations. These correlations are semi-empirical tools that provide insight into the effects of dilution on NOx, particulate, and HC emissions and can be used by the design or calibration engineer to reduce the number of engine tests required. A characteristic time model for NOx emissions bas been used to study the mixing processes in diesel engines and extended to study multiple injections, water/steam dilution, and the results of NO injection tests. This NOx model was also modified to calculate the NO formed in the cylinder as a function of time and was shown to correlate engine-out NOx emissions for four diesel engines. Development of a cycle simulation code is also underway. Primary emphasis bas been placed on the study of the ignition and combustion submodels for this code.
Author: Cathy Youngmi Choi
Publisher:
ISBN:
Category :
Languages : en
Pages : 610
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Author: Taewon Lee
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 264
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Author: Yong Sun
Publisher:
ISBN:
Category :
Languages : en
Pages : 234
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Author: Mark Andrew Patterson
Publisher:
ISBN:
Category :
Languages : en
Pages : 474
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