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Durham University

Department of Engineering

Staff Profile

Publication details for Professor Simon Hogg

Hilfer, Michael, Hogg, Simon & Ingram, Grant (2015), Experimental Validation of a Curtain Type Fluidic Jet Seal on a Turbine Rotor Shroud, 5C: ASME Turbo Expo 2015: Turbine Technical Conference and Exposition American Society of Mechanical Engineers. Montreal, Canada, American Society of Mechanical Engineers (ASME), New York, V05CT15A012.

Author(s) from Durham

Abstract

This paper describes the design and testing of a fluidic “air-curtain” type seal application to reduce tip leakages on a small high-speed single stage axial turbine.

The initial experimental investigations were carried out to demonstrate the application of the fluidic type seal on a “frozen rotor” test of a turbine. The “frozen rotor” test is carried out using an actual turbine rotor in a static test facility without rotation. These preliminary tests provide the first experimental validation of fluidic “air-curtain” type seals working to reduce over-tip leakage in a turbine shroud on a actual turbine geometry.

Ultimately the final stage of the work will be to demonstrate the fluidic seal working in a full rotating facility but these results provide a logical and important step towards that ultimate goal.

Notes

Paper No. GT2015-42624