| EPSRC Reference: |
GR/M92027/01 |
| Title: |
JREI: AN ON LINE PF FLOW MONITORING SYSTEM |
| Principal Investigator: |
Aroussi, Professor A |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Sch of Mech Materials Manuf Eng Mgt |
| Organisation: |
University of Nottingham |
| Scheme: |
JREI |
| Starts: |
23 August 2000 |
Ends: |
22 August 2001 |
Value (£): |
25,381
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| EPSRC Research Topic Classifications: |
| Combustion |
Fluid Dynamics |
| Instrumentation Eng. & Dev. |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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| Panel History: |
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Summary on Grant Application Form |
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In the generation of power, through the burning of coal, there are increasingly stringent regulations for emissions that have led to the fitting of low nitrogen oxide (NOx) burners. These operate under reduced oxygen or lean burn conditions, increasing the need for better control over the air/fuel ratio at individual burners. Usually, the fuel and air are metered at the mixing point just after the mill. Thereafter, the mixture is split to feed a number of individual burners. Fuel/air ratios can be set accurately at the central metering point, but differences in the routing of the lines injecting pulverised coal to the boilers and the almost inevitable phase maldistribution at the splitting points (bifurcations and trifurications) results in uneven feed to the boilers. This yeilds uneven combustion, increasing fuel costs, higher levels of carbon in the ash and the potential generation of excessive specific emissions in the flue gas.The proposed research programme aims to assemble an instrument, suitable for operation on coal fired power plants, to monitor on-line the characteristics of the PF flow. The work will make use of a 1/3 scale purpose built two phase flow rig capable of simulating typical flow conditions upstream of the burners. The instrumentation to be acquired will be validated on the rig prior to full scale trials. The technique proposed for the PF flow monitoring is an optical anemometer that will visualise and measure non-intrusively the velocity field and particle flux of the coal phase in the pipe circuit. The device will be based on the Particile Imaging Velocimetry (PIV) technique with the added ability of measuring particle concentration.The device will be a conventional PIV system but with the software modified to enable the extraction of the coal particles flux from the recorded images. The image analysis will be based on an existing in-house software, which has recently been modified to give the flux information.
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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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| Date Materialised |
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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.nottingham.ac.uk |