Soot Particle Size and Number Density Measurements in a Direct Injection Diesel Engine Using Light Scattering, Radiation, and Extinction PDF Download
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Author: Dale Reif Tree
Publisher:
ISBN:
Category :
Languages : en
Pages : 452
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Book Description
Author: Dale Reif Tree
Publisher:
ISBN:
Category :
Languages : en
Pages : 452
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Book Description
Author: Dale R. Tree
Publisher:
ISBN:
Category : Diesel motor
Languages : en
Pages : 16
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Book Description
In-cylinder measurements of soot particle size, number density and temperature have been made using optical measurements in a direct injection diesel engine. The measurements were made at one location approximately 5 mm long and 1.5 mm wide above the bowl near the head. Two optical techniques were used simultaneously involving light scattering extinction and radiation. An optical probe was designed and mounted in a modified exhaust valve which introduced a beam of light into the cylinder and collected the scattered and radiating light from the soot. The resulting measurements were semi-quantitative, giving an absolute uncertainty on the order of + or - 50% which was attributed mainly to the uncertainty of the optical properties of the soot and the heterogeneous nature of the soot cloud. Measurements at three speeds and three overall equivalence ratios were made. For all of the operating conditions the soot in the measurement volume increased in size to a maximum followed by a rapid decrease. The peak soot diameters were in a range of 30 - 50 nm. Peak soot diameter, soot volume fraction, and soot temperature appeared to increase with equivalence ratio at the measurement location. The results also suggested the soot cloud to be very dense with peak soot volume fraction near 4-6 x 10-6 and thick with a soot cloud thickness approximately 0.4 - 0.6 times the length from the piston to the head.
Author: John H Johnson
Publisher: SAE International
ISBN: 1468600117
Category : Technology & Engineering
Languages : en
Pages : 636
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Book Description
The need for manufacturers to meet U.S. Environmental Protection Agency (EPA) mobile source diesel emissions standards for on-highway light duty and heavy duty vehicles has been the driving force for the control of diesel particulate and NOx emissions reductions. Diesel Particulate Emissions: Landmark Research 1994-2001 contains the latest research and development findings that will help guide engineers to achieve low particulate emissions from future engines. Based on extensive SAE literature from the past seven years, the 45 papers in this book have been selected from the SAE Transactions Journals.
Author: Franklin John Struwe
Publisher:
ISBN:
Category :
Languages : en
Pages : 438
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Author: Ronald J. Donahue
Publisher:
ISBN:
Category :
Languages : en
Pages : 362
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Author: Stefan Simescu
Publisher:
ISBN:
Category :
Languages : en
Pages : 608
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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 860
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Author: Nabil S. Ayoub
Publisher:
ISBN:
Category :
Languages : en
Pages : 388
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Author: Joseph Sykora Shakal
Publisher:
ISBN:
Category :
Languages : en
Pages : 350
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Author: Dmitry A. Shamis
Publisher:
ISBN:
Category :
Languages : en
Pages : 234
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