Dynamic pressure as a measure of gas turbine engine (GTE) performance
(2010) Measurement Science and Technology — Vol. 21, n° 4 (2010)
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- Abstract
- Utilizing in situ dynamic pressure measurement is a promising novel approach with applications for both control and condition monitoring of gas turbine-based propulsion systems. The dynamic pressure created by rotating components within the engine presents a unique opportunity for controlling the operation of the engine and for evaluating the condition of a specific component through interpretation of the dynamic pressure signal. Preliminary bench-top experiments are conducted with dc axial fans for measuring fan RPM, blade condition, surge and dynamic temperature variation. Also, a method, based on standing wave physics, is presented for measuring the dynamic temperature simultaneously with the dynamic pressure. These tests are implemented in order to demonstrate the versatility of dynamic pressure-based diagnostics for monitoring several different parameters, and two physical quantities, dynamic pressure and dynamic temperature, with a single sensor. In this work, the development of a dynamic pressure sensor based on micro-electro-mechanical system technology for in situ gas turbine engine condition monitoring is presented. The dynamic pressure sensor performance is evaluated on two different gas turbine engines, one having a fan and the other without.
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Citations
Rinaldi, G., Stiharu, I., Packirisamy, M., Nerguizian, V., Landry, R. J., & Raskin, J.-P. (2010). Dynamic pressure as a measure of gas turbine engine (GTE) performance. Measurement Science and Technology, 21(4). https://doi.org/10.1088/0957-0233/21/4/045201 (Original work published 2010)