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Keywords: performance
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Proceedings Papers

Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT35A015, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103013
... correlations that estimate individual losses, thus allowing the compressor performance to be estimated. Some of these algorithms require complete knowledge of the impeller geometry to enable performance estimation at varying process conditions. However, often such complete knowledge may not available...
Proceedings Papers

Proc. ASME. GT2023, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T03A012, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101986
..., the study presented in this paper seeks to assess the performance of both solutions. Simulation results show that for the blue-H 2 scenario, the production of blue-H 2 has an energy penalty of 24% on the CCGT. On the other hand, post-combustion CC implies an energy penalty of 10%, making the CC-only case...
Proceedings Papers

Proc. ASME. GT2023, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T03A001, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100463
... Abstract Turbomachinery design typically foresees three different phases: conceptual, preliminary and detailed. Conceptual design is the first stage of industrial design process, providing mainly the architectures down-selection. Traditionally, this phase is driven by the target “performance...
Proceedings Papers

Proc. ASME. GT2023, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T02A004, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101601
... vanes for high pressure turbines (HPTs) have been researched and tested in the past. A realistic design approach for cooled CMC vanes is the so-called shell and spar concept. The application of such vanes in HPTs as inlet guide vanes (IGVs) at constant rotor inlet temperature (T41) enables performance...
Proceedings Papers

Proc. ASME. GT2023, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A023, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103264
..., Buffer Cavity, Calculation, Real-Time, Performance, Pressure Efficiency, EGT, Conversion NOMENCLATURE ACC Active Clearance Control BSI Borescope Inspection COM Clearance-o-meter EGT Exhaust Gas Temperature FADEC Full Authority Digital Engine Control FTB Flying Test Bed ft Feet HPT High Pressure Turbine H...
Proceedings Papers

Proc. ASME. GT2023, Volume 5: Cycle Innovations, V005T06A011, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102023
..., operation without water or steam, and improves overall cycle performance. The semi-closed oxy fuel gas turbine working fluids are mainly CO 2 and water making it feasible to separate CO 2 by condensing water vapor. Also, since O 2 is used as an oxidizer instead of air in the combustion, NOx emissions...
Proceedings Papers

Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A039, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103750
... tip speed but different aspect ratio, yet well below unity. The current paper proposes a comparison between the stages in terms of overall performance and rotor and stator flow fields, at different Reynolds numbers, and for different operating points. The tip-gap influence has also been assessed...
Proceedings Papers

Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A038, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103629
... on a novel test facility with multi-physical instrumentation. In this publication the results of the first experimental campaign are presented with a detailed analysis of the aerodynamic performance and system symmetry. The presented results comprise full stage mappings across the whole operating range...
Proceedings Papers

Proc. ASME. GT2023, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V008T16A006, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103655
...) design. The new power turbine module is briefly described in this document from the basic 1D parameters up to the design of the airfoils, which have high lift characteristics. In addition to the traditional goal of increasing performance, the design of the UPT also focused on achieving robustness...
Proceedings Papers

Proc. ASME. GT2023, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T08A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102065
... Abstract As gas turbines are operated and maintained, it is key to understand engine firing temperatures at cyclical and variable load operations, and more specifically, the tradeoff between engine performance, repair costs and reliability. It is crucial to ensure performance is maintained...
Proceedings Papers

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A004, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80186
... Abstract Low fidelity modelling approaches remain attractive due to an unrivalled ability to predict full turbine performance maps quickly compared to high fidelity approaches such as CFD, especially in the preliminary design process. As improvements in performance on a component level approach...
Proceedings Papers

Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T01A030, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83431
... contraction of casing and control tip clearance automatically during operation. For example, case structure can be cooled and radially contracted by cooling air outside of casing structure and the system is working to minimize the gap and improve turbine performance. However, the current system does...
Proceedings Papers

Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T06A018, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81939
... emissions with different power management strategies and levels of battery technology. In the economic study, the potential subsidies and tax incentives required to make these aircraft financially viable are determined. To capture the performance results, models of the propulsion systems and airframe were...
Proceedings Papers

Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T09A005, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59291
... Abstract The best assurance an owner has to maximize the performance of the entire combined cycle power plant is perfect alignment of HRSG performance guarantee metrics to this goal. Currently, HRSG equipment performance guarantees include steam generation rates and steam temperature at each...
Proceedings Papers

Proc. ASME. GT2021, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V007T16A006, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59778
... and results presented in this paper would serve as a guide for associated gas investors in the economic utilization of this fuel resource. This is innovative; it has not been done with the Alstom GT-26 engine. performance energy gas turbine power Proceedings of ASME Turbo Expo 2021 Turbomachinery...
Proceedings Papers

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A038, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59951
..., presenting, and generalizing the characteristics of compressors. The advantages and limitations of the existing compressor maps approximation methods are summarized in the paper. A comparison of the obtained approximating method is carried out against previously developed methods. Based on the performed...
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A018, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14413
... Abstract The trend towards increased bypass ratio and reduced core size in civil aero-engines puts a strain on ground-start and relight capability, prompting renewed interest in sub-idle performance modelling. While a number of studies have looked at some of the broad performance modelling...
Topics: Compressors
Proceedings Papers

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A011, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14472
...Numerical investigation of effect of blade surface slot on the performance and flow field of a low speed centrifugal fan HaoGuang Zhang1, FeiYang Dong1, XuDong Zhang2, WuLi Chu1 1School of Power and Energy, Northwestern Polytechnical University, Xi an 710072, Shaanxi, China 2COMAC Shanghai Aircraft...
Proceedings Papers

Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T06A010, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15000
... Abstract This paper presents the experimental results of a micro gas turbine driven by pulse, pressure gain combustor. The aim of this study is to demonstrate the improvement of the engine performance by applying the pressure gain combustion. The micro gas turbine is composed of a combustor...
Proceedings Papers

Proc. ASME. GT2012, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation, 293-300, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69417
... using performance models of the helicopter and its associated turboshaft engine. These models are developed in an object-oriented simulation environment that allows a direct mechanical connection to be established between them in order to create an integrated model. Considering the case of a typical...
Topics: Fuels