| EPSRC Reference: |
GR/K56605/01 |
| Title: |
GAS TURBINE COOLANT PRE-SWIRL SYSTEMS |
| Principal Investigator: |
Turner, Professor AB |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Sch of Engineering and Design |
| Organisation: |
University of Sussex |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1995 |
Ends: |
30 September 1998 |
Value (£): |
223,484
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| EPSRC Research Topic Classifications: |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Energy |
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| Related Grants: |
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| Panel History: |
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Summary on Grant Application Form |
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In modern high performance gas turbines the mainstream gas temperature is so high that every means of reducing the temperature of the air coolant fed to the blades has to be taken. Pre-swirling the coolant fed to the high pressure rotor blades in the direction of rotation allows the rotor to entrain it, theoretically, at a temperature close to the static temperature. The static temperature of the pre-swirled flow can be up to 80C lower than the coolant supply but the measured temperature reduction is generally less than half of this.A reduction in coolant temperature of 15C can increase the rotor blade life by a factor of two and one row of rotor blades costs of 100,000. There is thus a pressing need (a) to understand where the inefficiencies in present pre-swirl designs is actually occuring, and (b) to develop higher efficiency pre-swirl coolant transfer systems.It is proposed to instrument a Rolls-Royce engine representative development rig up to research capability and to measure the efficiency of the pre-swirl components and the influence of the various parameters. The research proposed will investigate the significance of (a) labyrinth seal bleed flows; (b) the area of the aeroengines, gas turbines, heat transfer, aeronautics, machinery, computing energy, transport, stationary nozzle surfaces, and (c) the effectiveness of profiled receiver ports on the rotor disc. Novel concepts and geometries will be investigated guided by research findings and complementary CFD studies.
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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 |
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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.sussex.ac.uk |