1-20 of 23
Keywords: surge
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A020, June 7–11, 2021
Paper No: GT2021-58828
...-to-Gas (P2G) to compensate for the volatility of renewable energy sources, demand e cient gas tur- Keywords: Stall, Surge, Axial, Transonic, Compressor, Test Rig bines that quickly adapt to changing load requirements. The compressor as a crucial component is especially a ected by this NOMENCLATURE need...
Topics: Compressors
Proceedings Papers

Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A028, June 7–11, 2021
Paper No: GT2021-59186
...Abstract Abstract Surge margin is critical for the safety of aeronautical compressors, hence predicting it early in the design process using CFD is mandatory. However, close to surge, steady-state Reynolds Averaged Navier-Stokes (RANS) simulations are proven inadequate. Unsteady techniques...
Proceedings Papers

Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T06A014, June 7–11, 2021
Paper No: GT2021-59501
.... Instability phenomena limit the operating range of the whole compressor system, especially during fast transients. The target is therefore to extend the minimum flow limit in order to improve the operability of each unit, while avoiding compressor surge operation and guaranteeing safe operation...
Proceedings Papers

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A006, September 21–25, 2020
Paper No: GT2020-14247
... to deep surge and introduces a new approach to identify these disturbances using nonlinear feature extraction algorithms including: phase-reconstruction of time-series signals and evaluation of a parameter called approximate entropy. To the best of the authors’ knowledge, this is the first time...
Proceedings Papers

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A032, September 21–25, 2020
Paper No: GT2020-15699
... measures of change in variability could serve as a valuable indicator of instabilities. centrifugal compressor instabilities detection cyclostationarity surge CYCLOSTATIONARY APPROACH FOR INSTABILITIES DETECTION AND CONDITION MONITORING OF CENTRIFUGAL COMPRESSOR Mateusz Stajuda1,2, David Garcia...
Proceedings Papers

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A033, September 21–25, 2020
Paper No: GT2020-15717
...Abstract Abstract This paper presents tests of an anti-surge system based on pressure derivatives. The control algorithm was proven to work on different machines and with different unstable flow phenomena. Compressors are known to be affected by unstable flow conditions appearing at low mass...
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 2E: Turbomachinery, V02ET41A029, September 21–25, 2020
Paper No: GT2020-15426
..., the compressor is operated with the distorted inflow. In the low flow rate operation, the distorted inflow also affects the flow instability like stall and surge. Especially, the operation range on the low flow rate side is defined based on the flow rate where surge occurs, so it is important to investigate...
Proceedings Papers

Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T06A009, September 21–25, 2020
Paper No: GT2020-14795
... outlet and the combustor inlet like in the typical cases related to small size plants. A modular vessel was used to perform and to compare the tests with different volume sizes. The main results reported in this paper are related to rotating stall and surge operations. This analysis was carried out...
Proceedings Papers

Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A044, September 21–25, 2020
Paper No: GT2020-15803
...Abstract Abstract In this paper the flow recirculation regions during the full surge cycle were described. It is a known fact that the surge cycle consists of two periods: backflow and recovery. The aim of this paper is to add spatial dimension to this analysis. Therefore, the main target...
Proceedings Papers

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A006, September 21–25, 2020
Paper No: GT2020-14149
... outlet guide vanes. The methodology for calculating the performance is detailed, including the consideration of humidity in order to minimize errors related in particular to operating atmospheric conditions. The shift of the surge line towards lower mass flow rate as the IGV stagger angle increases...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A017, September 21–25, 2020
Paper No: GT2020-15174
...Abstract Abstract Flow instabilities in centrifugal compressors are one of the most limiting factors to the performance of the system where the compressor is installed (i.e., internal combustion engines, fuel cell, etc.). A better understanding of the surge phenomenon allows to properly set-up...
Proceedings Papers

Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT45A025, June 17–21, 2019
Paper No: GT2019-91602
... Abstract Surge happens when the mass flow rate reduces to a certain value in the centrifugal compressor and pipe network system. Surge will cause fatal damage to the centrifugal compressor. So researchers need to capture the surge fluctuation in the compressor and pipe system by methods...
Proceedings Papers

Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 2765-2774, June 11–15, 2012
Paper No: GT2012-69969
... Surge of turbo compressors can cause large almost step like changes in flow and pressure, which can potentially damage the compressor and any equipment that is in direct connection with the compressor. In spite of an anti-surge controller (ASC), at extreme events surge cycles may occur. In order...
Proceedings Papers

Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 101-112, June 6–10, 2011
Paper No: GT2011-45497
... are implemented and compared to experimental data in normal flow, stalled flow and reversed flow regions. Transient simulations are carried out and a parameter study is presented to analyze the shape of the surge cycles and the frequency of the surge oscillations. At last, a bleeding control strategy...
Proceedings Papers

Proc. ASME. GT2002, Volume 2: Turbo Expo 2002, Parts A and B, 1111-1121, June 3–6, 2002
Paper No: GT2002-30279
... includes five pipeline compressors and is utilised as a pilot for analysing the transient response of a 40 MW compressor driven by a variable speed electric motor. The compressor control and protection system include an anti-surge and a hot gas bypass system. Vibration records have shown that under power...
Proceedings Papers

Proc. ASME. GT2004, Volume 7: Turbo Expo 2004, 813-821, June 14–17, 2004
Paper No: GT2004-53700
... An important issue related to compressor and driver integration is the behaviour during driver trip. Field tests at Troll Kollsnes gas treatment plant have shown that under a short power outage and within certain operating scenarios, the compressor enters the surge- and rotating stall area...
Proceedings Papers

Proc. ASME. GT2004, Volume 5: Turbo Expo 2004, Parts A and B, 287-295, June 14–17, 2004
Paper No: GT2004-54072
... Current research concerned with the aerodynamic instability of compressors aims at an extension of the operating range of the compressor towards decreased mass flow. In practice a safety margin is maintained between operating point and surge line to prevent the compressor from going into stall...
Proceedings Papers

Proc. ASME. GT2004, Volume 5: Turbo Expo 2004, Parts A and B, 709-716, June 14–17, 2004
Paper No: GT2004-53268
... technique. Furthermore, the unsteadiness of inducer shock wave and the flow in a cascade diffuser during surge were discussed based on instantaneous velocity vector maps. 25 11 2008 transonic centrifugal compressor low-solidity cascade diffuser PIV shock wave surge Proceedings of ASME...
Proceedings Papers

Proc. ASME. GT2005, Volume 4: Turbo Expo 2005, 317-325, June 6–9, 2005
Paper No: GT2005-68436
... Knowledge of compressor system behaviour during trip is essential to obtain reliable operation. Experience at Troll Kollsnes gas treatment plant has shown that the compressor can suffer from surge and rotating stall in situations with voltage drops in the electricity grid. The electric motor...