Electrically-Assisted Turbocharger Development for Performance and Emissions

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Description

Turbocharger transient lag inherently imposes a tradeoff between a robust engine response to transient load shifts and exhaust emissions. By itself, a well matched turbocharger for an engine has limited flexibility in improving this transient response. Electrically-assisted turbocharging has been seen as an attractive option to improve response and lower transient emissions. This paper presents the results of a multi-year joint CRADA between DDC and ORNL. Virtual lab diesel simulation models characterized the performance improvement potential of an electrically assisted turbocharger technology. Operating requirements to reduce transient duration between load shift time by up to 50% were determined. A turbomachine ... continued below

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19 pages

Creation Information

Bailey, Milton August 20, 2000.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 32 times . More information about this article can be viewed below.

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  • Oak Ridge National Laboratory
    Publisher Info: Oak Ridge National Lab., Oak Ridge, TN (United States)
    Place of Publication: Oak Ridge, Tennessee

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Description

Turbocharger transient lag inherently imposes a tradeoff between a robust engine response to transient load shifts and exhaust emissions. By itself, a well matched turbocharger for an engine has limited flexibility in improving this transient response. Electrically-assisted turbocharging has been seen as an attractive option to improve response and lower transient emissions. This paper presents the results of a multi-year joint CRADA between DDC and ORNL. Virtual lab diesel simulation models characterized the performance improvement potential of an electrically assisted turbocharger technology. Operating requirements to reduce transient duration between load shift time by up to 50% were determined. A turbomachine has been conceptualized with an integrated motor-generator, providing transient burst boost plus energy recovery capability. Numerous electric motor designs were considered, and a prototype motor was developed, fabricated, and is undergoing tests. Power controls have been designed and fabricated.

Physical Description

19 pages

Notes

OSTI as DE00827803

Source

  • 6th Diesel Engine Emissions Reduction (DEER) Workshop 2000, San Diego, CA (US), 08/20/2000--08/24/2000

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  • Report No.: CONF-200008-35
  • Office of Scientific & Technical Information Report Number: 827803
  • Archival Resource Key: ark:/67531/metadc781084

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • August 20, 2000

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • June 13, 2016, 2:25 p.m.

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Bailey, Milton. Electrically-Assisted Turbocharger Development for Performance and Emissions, article, August 20, 2000; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc781084/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.