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Microwave Clearance Measurement System for Low Pressure Turbines


"The objective of this project is further development, laboratory validation, and demonstration of a microwave clearance measurement system (MCMS) on a SAGE4 GTF demonstrator engine. The system will measure radial running clearances and axial rotor displacements in the low-pressure turbine with the goal of application in a closed-loop Active Clearance Control (ACC) system. The project will first develop measurement concepts in a laboratory setting, translate these concepts to designs suitable for implementation in the demonstrator engine and then test the measurement system during an engine test. In addition, the project will demonstrate high operational reliability and field-replaceability of microwave sensors in the harsh low pressure turbine environment with the goal of at least one typical engine maintenance interval. Finally, the accuracy of the measurement of radial clearance and axial position, measurement interval, measurement signal processing and data formats will be demonstrated suitable for integration with an ACC system. Successful validation of a reliable MCMS used in conjunction with a closed-loop ACC control system for aerospace gas turbine engines will result in more efficient turbine and better engine performance and efficiency and hence improved fuel consumption and reduced emissions and will facilitate the early introduction of innovative and competitive European products into the market."

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Schweiz/Suisse/Svizzera Espace Mittelland Fribourg / Freiburg
Tipo di attività
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Contatto amministrativo
Pavol Rybarik (Dr.)
Contributo UE
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