| EPSRC Reference: |
GR/H74315/01 |
| Title: |
ORIGINS OF AUTOIGNITION CENTRES IN END-GAS COMBUSTION |
| Principal Investigator: |
Griffiths, Professor J |
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| Department: |
Colour Chemistry |
| Organisation: |
University of Leeds |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
18 September 1992 |
Ends: |
17 June 1995 |
Value (£): |
83,792
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Summary on Grant Application Form |
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The thermokinetic interactions that control hydrocarbon combustion in the temperature range 600 - 800 K (the range in which an overall negative temperature coefficient of reaction rate occurs) may cause the initiation of autoignition centres at points close to the wall of combustion chambers rather than in the hotter core gas. There is some support for this to be seen in high-speed films of autoignition under knocking conditions in si engines. The primary objectives of this project are to investigate the location of sites at which the cool flame and second-stage, hot ignition are first seen in the chamber of the rapid compression machine (RCM), how the locations of such sites are governed by the compression temperature and pressure of the reactants, and to explore the relevance to and potential impact on engine combustion. Supplementary studies of the corresponding, oscillatory two-stage ignition of hydrocarbon fuels in a low pressure, stirred flow reactor will yield more detailed chemical information on the spatially resolved development of autoignition in single cylinder engine and its relationship to engine-knock will be investigated by Mie scattering from multiple laser sheets. The combustion of butane and higher alkanes is to be studied.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.leeds.ac.uk |