Tailoring Inlet Flow to Enable High Accuracy Compressor Performance Measurements
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John R. Brossman
Abstract
To accomplish the research goals of capturing the effects of blade row interactions on compressor performance, small changes in performance must be measurable. This also requires axi-symmetric flow so that measuring one passage accurately captures the phenomena occurring in all passages. Thus, uniform inlet flow is a necessity. The original front-driven compressor had non-uniform temperature at the inlet. Additional challenges in controlling shaft speed to within tight tolerances were associated with the use of a viscous fluid coupling. Thus, a new electric motor, with variable frequency drive speed control was implemented. To address the issues with the inlet flow, the compressor is now driven from the rear resulting in improved inlet flow uniformity. This paper presents the design choices of the new layout in addition to the preliminary performance data of the compressor and an uncertainty analysis.
Copyright © 2011 De Gruyter
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Articles in the same Issue
- Study on Fault Diagnostics of a Turboprop Engine Using Inverse Performance Model and Artificial Intelligent Methods
- Development of GUI Type On-Line Condition Monitoring Program for a Turboprop Engine Using Labview
- Research on the Multi-variable Optimization of Forward-skewed Blade
- On the Theoretical Calculation of the Stability Line of an Axial-flow Compressor Stage
- Performance Characteristics of a Partially Admitted Small-Scale Mixed-Type Turbine
- Tailoring Inlet Flow to Enable High Accuracy Compressor Performance Measurements
- Effect of a Subsonic Air Stream on a Two-dimensional Transverse Water Jet
- Pressure Hill and Zone of Influence over Flat-Faced Bluff Bodies
