Final CRADA Report ORNL-00-0609, Real-Time Control of Diesel Combustion Quality

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Detroit Diesel Corporation (DDC) and ORNL established this CRADA to improve heavy-duty engine efficiency with reduced emissions at relatively extreme operating regimes such has high EGR, low-load, and cold-start, with an emphasis on the application of advanced control strategies. The approach used in this collaborative effort was to include the application of novel analysis and modeling techniques developed from the application of nonlinear dynamics and chaos theory. More specifically, analytical techniques derived from these theories were to used to detect, characterize, and control the combustion instabilities that are responsible for poor combustion performance and corresponding high emissions. The foundation of ... continued below

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Wagner, Robert M July 1, 2010.

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Description

Detroit Diesel Corporation (DDC) and ORNL established this CRADA to improve heavy-duty engine efficiency with reduced emissions at relatively extreme operating regimes such has high EGR, low-load, and cold-start, with an emphasis on the application of advanced control strategies. The approach used in this collaborative effort was to include the application of novel analysis and modeling techniques developed from the application of nonlinear dynamics and chaos theory. More specifically, analytical techniques derived from these theories were to used to detect, characterize, and control the combustion instabilities that are responsible for poor combustion performance and corresponding high emissions. The foundation of this CRADA was established based on ORNL expertise on the fundamentals of advanced combustion operation and experience with nonlinear dynamics and controls in combustion systems. The initial plan was all data generation would be performed at DDC with an agreed upon experimental plan formed by both organizations. While numerous experiments were performed at DDC and the data was exchanged with ORNL researchers, the team decided to transfer an engine to ORNL to allow more flexibility and data generation opportunities. A prototype DDC Series 60 with a common rail fuel system was selected and installed at ORNL. DDC and ORNL maintained a strong collaboration throughout much of this project. Direct funding from DOE ended in 2004 and DDC continued to fund at a reduced amount through 2007. This CRADA has not been funded in more recent years but has been maintained active in anticipation of restored funding. This CRADA has led to additional collaborations between DDC and ORNL. The objectives are to: (1) Explore and establish boundaries of high efficiency clean combustion (HECC) modes on a DDC heavy-duty diesel engine; (2) Improve fundamental understanding of combustion instabilities for use in the development of predictive controls and diagnostics; and (3) Develop and evaluate potential control strategies for enabling and/or expanding HECC operation on a multi-cylinder diesel engine.

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  • Report No.: ORNL/TM-2010/139
  • Grant Number: DE-AC05-00OR22725
  • DOI: 10.2172/983843 | External Link
  • Office of Scientific & Technical Information Report Number: 983843
  • Archival Resource Key: ark:/67531/metadc1015376

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  • July 1, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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Wagner, Robert M. Final CRADA Report ORNL-00-0609, Real-Time Control of Diesel Combustion Quality, report, July 1, 2010; United States. (digital.library.unt.edu/ark:/67531/metadc1015376/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.