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Keywords: Compressor
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Proceedings Papers

Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A025, June 7–11, 2021
Paper No: GT2021-59099
...Abstract Abstract For over forty years, coatings have been used as a means to prevent the build-up of foulants on the flow passages of centrifugal compressors. In general, this has been a “One Size Fits All” solution, with most OEMs and applicators offering nearly identical coating systems...
Proceedings Papers

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A018, June 7–11, 2021
Paper No: GT2021-60346
... compressor. The acoustic resonance frequency will be locked in a specific range which presents no variation in the rotating speed. The propagation status of the sound source of the acoustic resonance frequency should be from back to forward with a helical shape. The research method of the characteristics...
Proceedings Papers

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A002, June 7–11, 2021
Paper No: GT2021-58779
...Abstract Abstract This paper focuses on the impact of hub labyrinth seal leakage flows on the aeromechanical behavior of an embedded compressor rotor. End wall flows are critical in determining the performance of gas turbine engine compressors, particularly the hub leakage flows that can...
Proceedings Papers

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A003, June 7–11, 2021
Paper No: GT2021-58780
...Abstract Abstract This paper focusses on predicting the mistuned forced response behavior of an embedded compressor rotor blade row in a 3.5 stage axial compressor. The authors in previous papers studied the multi-row influence on the forcing function for multiple operating conditions...
Proceedings Papers

Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT28A004, June 7–11, 2021
Paper No: GT2021-59725
...Abstract Abstract Accurate characterization of compressor rotordynamic coefficients during the design phase reduces the risk of sub-synchronous vibration (SSV) problems occurring in the field. Although rotordynamists extensively investigate discrete compressor components (such as seals...
Proceedings Papers

Proc. ASME. GT2021, Volume 10: Supercritical CO2, V010T30A017, June 7–11, 2021
Paper No: GT2021-59359
...Abstract Abstract Among the list of advanced technologies required to support the energy industry’s novel Supercritical Carbon Dioxide (sCO 2 ) power cycle is the need for a robust and responsive control system. Recent testing has been performed on a 2.5 MWe sCO 2 compressor operating near...
Proceedings Papers

Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT28A009, June 7–11, 2021
Paper No: GT2021-60301
... operation range, and investigating rotordynamic issues. rotordynamics vibration stability turbine compressor rotor-bearing system Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-60301 EFFECTIVE EVALUATION...
Proceedings Papers

Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A020, June 7–11, 2021
Paper No: GT2021-58828
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58828 OVERVIEW OF UNSTEADY PHENOMENA EMERGING IN A STALLED 1.5-STAGE TRANSONIC COMPRESSOR Silas Mütschard Christoph Biela Jan Werner Sebastian Robens SIEMENS...
Topics: Compressors
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A079, September 21–25, 2020
Paper No: GT2020-16323
...Abstract Abstract In order to study the influence of probe blockage effect on the test performance of the compressor, a full-channel steady simulation method was used to establish a regression model of the influence of the probe on the compressor performance. Taking NASA Rotor67 compressor...
Proceedings Papers

Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT34A018, September 21–25, 2020
Paper No: GT2020-16143
...Abstract Abstract At the Altitude Test Facility (ATF) of the University of Stuttgart a linear compressor cascade test rig serves the investigation of ice crystal icing (ICI) under engine realistic conditions. A numerical model of the first stage of NASA Stage 67 is validated with experimental...
Proceedings Papers

Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A034, September 21–25, 2020
Paper No: GT2020-15290
...Abstract Abstract This paper proposes geometry parameterization of a complete single centrifugal compressor stage and applies CFD-driven optimization using artificial neural networks and a Kriging surrogate model. Kinematic velocity triangle analysis is used to arrive at an initial design...
Proceedings Papers

Proc. ASME. GT2020, Volume 2D: Turbomachinery, V02DT38A028, September 21–25, 2020
Paper No: GT2020-16168
...Abstract Abstract The present work focuses on the effect of the manufacturing geometrical variability on the high-pressure compressor of a turbofan engine for civil aviation. The deviations of the geometry over the axial compressor blades are studied and modeled for the representation...
Proceedings Papers

Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T05A022, September 21–25, 2020
Paper No: GT2020-15641
...A COMPREHENSIVE MODELING OF CENTRIFUGAL COMPRESSOR VIBRATIONS FOR EARLY FAULT DETECTION François Libeyre, Francis Bainier, Pascal Alas GRTgaz, Paris, France ABSTRACT In the last decade, the development of machine connectivity has made possible early fault detection with remote analysis of operating...
Proceedings Papers

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A012, September 21–25, 2020
Paper No: GT2020-14482
...Abstract Abstract This paper focuses on the impact of multi-row interaction on the forced response behavior of an embedded compressor rotor at higher order modes. The authors in previous papers have discussed about the multi-row influence at the torsional mode resonant crossing and this paper...
Proceedings Papers

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A020, September 21–25, 2020
Paper No: GT2020-15149
... of the foam metal casing treatment on compressor stability and noise reduction are experimentally investigated. The foam metal selected in the experiments is constructed from ferronickel and its PPI (pores per inch) is 35. The foam metal casing treatment comprises annular support casing and foam metal ring...
Proceedings Papers

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A009, September 21–25, 2020
Paper No: GT2020-14345
...Abstract Abstract Stall followed by surge in a high-speed compressor can lead to violent disruption of the flow, damage to the blade structures and eventually engine shutdown. Knowledge of unsteady blade loading during surge is crucial for compressor design such as axial gap optimisation...
Proceedings Papers

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT28A002, September 21–25, 2020
Paper No: GT2020-14384
...Abstract Abstract The design of a gas turbine compressor vane carrier (CVC) should meet mechanical integrity requirements on, among others, low-cycle fatigue (LCF). The number of cycles to the LCF failure is the result of cyclic mechanical and thermal strain effects caused by operating...
Proceedings Papers

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A028, September 21–25, 2020
Paper No: GT2020-16260
... of the units limiting the engine life is the compressor rotor. The cyclic life of the rotor depends on many factors: the stress-strain state in critical zones, the life of the material under low-cycle loading, the regime of engine operation, production deviations (within tolerances), etc. In order to verify...
Proceedings Papers

Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT13A019, September 21–25, 2020
Paper No: GT2020-15243
... to the cryogenic fuel. The requirements for the heat exchanger are defined for a large geared-turbofan engine operating on liquid hydrogen. The resulting preliminary conceptual design is integrated into a modified interconnecting duct and connected to the last stage of a publicly available low-pressure compressor...
Proceedings Papers

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A014, September 21–25, 2020
Paper No: GT2020-15145
...Abstract Abstract This paper aims to study the effect of varying the working line of a compressor onto the forced response vibrations of the blades of an integrally bladed disk (blisk). The investigated rotor belongs to a transonic research compressor, where various probes are placed to measure...