| EPSRC Reference: |
GR/J67031/01 |
| Title: |
PARASITIC HEATING IN GAS TURBINE ENGINE STATOR WELLS |
| Principal Investigator: |
Childs, Professor P |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Thermo Fluid Mechanics Research Centre |
| Organisation: |
University of Sussex |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 April 1994 |
Ends: |
31 March 1996 |
Value (£): |
88,880
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| EPSRC Research Topic Classifications: |
| Fluid Dynamics |
Heat & Mass Transfer |
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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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The subject of this proposal is the overheating of gas in compressor or turbine stator wells due to windage/viscous dissipation of energy and the consequential over-heating of adjacent highly stressed rotating metal structures. Shrouded stator blades are used in gas turbine engines to eliminate blade vibration problems and to enhance stage efficiency when mechanical considerations necessitate relatively large radial clearances. The use of a shroud on a stator blade row requires a trench in the rotor known as a stator wall. Excess stator well metal temperatures, above the mainstream annulus total temperature, of between 30C and 120C have been measured in engine development rigs. There is little quantitative understanding of flow and heat generation and heat transfer in stator walls to provide a basis for trustworthy predictive design. The penalties for failing to derive configurations at or near the optimum can be severe; use of more expensive or heavier alloys; reduction of component life. The objective of this research is to understand quantitatively the generation of heat in stator wells by windage/viscous dissipation and to model processes so that the temperature rise in the surrounding metal can be predicted. A combined experimental, theoretical and analytic approach is proposed.
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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.sussex.ac.uk |