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Keywords: off-design
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Proceedings Papers

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A027, June 13–17, 2022
Paper No: GT2022-82626
... high-speed LPT transonic linear cascade off-design secondary flows open database Abstract In this two-part paper, a novel test-case for transonic low-pressure turbines (LPT) is presented. The current study is a comprehensive report on the design, commissioning and testing of a high...
Proceedings Papers

Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T06A002, June 13–17, 2022
Paper No: GT2022-79378
.... Off-design simulations show that both strategies are capable of avoiding the molten salts solidification issue but at the cost of a non negligible penalty (up to −1.9 percentage points) in power block efficiency at low loads (30–50%). The off-design analysis considers also the effect of ambient...
Proceedings Papers

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A001, June 13–17, 2022
Paper No: GT2022-78065
... point (cruise) but also at off-design conditions. A splittered TVF design features complex flow fields with strong secondary flow interactions, and because of the fundamental design differences, the flow field characteristics within a TVF are different from those in a conventional LPT vane row...
Proceedings Papers

Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T07A004, June 7–11, 2021
Paper No: GT2021-60185
..., one for charging and the other one for discharging. Although PTES thermodynamical behavior is well understood, the interaction between the components is rarely investigated. This study investigates the impact of packed-bed behavior on turbomachines operating conditions. In this way, PTES off-design...
Proceedings Papers

Proc. ASME. GT2021, Volume 10: Supercritical CO2, V010T30A022, June 7–11, 2021
Paper No: GT2021-59936
...Abstract Abstract Uncertainty around the design and control of the supercritical CO2 power cycle must be reduced before this technology can be implemented for large-scale grid support. To better understand the day-to-day performance of an sCO 2 cycle, off-design performance calculations must...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T17A004, September 21–25, 2020
Paper No: GT2020-15132
... is to introduce a newly developed tool for the simulation of design and off-design conditions of gas turbine-based cogeneration systems, where heat is recovered through a Heat Recovery Steam Generator. The tool is meant to be driven by a small amount of inputs, making it possible to define sharp strategies...
Proceedings Papers

Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T31A016, September 21–25, 2020
Paper No: GT2020-15743
...APPLICATION OF DIGITAL TWIN CONCEPT FOR SUPERCRITICAL CO2 OFF-DESIGN PERFORMANCE AND OPERATION ANALYSES Leonid Moroz1, Maksym Burlaka1, Tishun Zhang1, Olga Altukhova1 1SoftInWay Inc., Burlington, MA, USA ABSTRACT To date variety of supercritical CO2 cycles were proposed by numerous authors...
Proceedings Papers

Proc. ASME. GT2009, Volume 7: Turbomachinery, Parts A and B, 525-532, June 8–12, 2009
Paper No: GT2009-59772
... optimization processes. To demonstrate feasibility of the present method, a 10-stage compressor was optimized to maximize its total pressure ratio of operating point in off-design conditions. The variable geometries that were studied in this paper are: (1) VIGV; (2) VIGV and first row variable stator; (3) VIGV...
Proceedings Papers

Proc. ASME. GT2007, Volume 6: Turbo Expo 2007, Parts A and B, 879-893, May 14–17, 2007
Paper No: GT2007-28123
...° relative to design incidence. MISES boundary layer method 2-D cascade validation transonic off-design HPT incidence loss CFD Proceedings of GT2007 ASME Turbo Expo 2007: Power for Land, Sea and Air May 14-17, 2007, Montreal, Canada Copyright © 2007 by ASME 1 cascade, validation, transonic...
Proceedings Papers

Proc. ASME. GT2004, Volume 5: Turbo Expo 2004, Parts A and B, 1429-1437, June 14–17, 2004
Paper No: GT2004-54083
... parameters already evidences strong secondary effects. Measurements point out that also a small change in stagger angle may surprisingly affect blade performances and 3D flow field. Turbine Cascade Stagger Angle Secondary Flows off-design axial flow turbine Proceedings of ASME TURBO EXPO 2004...
Proceedings Papers

Proc. ASME. GT2006, Volume 4: Cycle Innovations; Electric Power; Industrial and Cogeneration; Manufacturing Materials and Metallurgy, 495-499, May 8–11, 2006
Paper No: GT2006-90204
... power is almost constant. Combined cycle gas turbine heat recovery steam generator atmospheric conditions off-design Proceedings of GT2006 ASME Turbo Expo 2006: Power for Land, Sea and Air May 8-11, 2006, Barcelona, Spain 1 Copyright © 2006 by ASME different condenser cooling techniques...