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Keywords: performance
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Proceedings Papers

Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T37A015, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127330
... the Reynolds averaged Navier-Stokes (RANS) equations, the computational fluid dynamics (CFD) ANSYS-fluent software was utilized. Initially, a simple numerical model for a 1 MW horizontal axis wind turbine was created to simulate its performance characteristics. A steady-state solution was obtained using...
Proceedings Papers

Proc. ASME. GT2024, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T03A005, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122266
... partners. The SGT-A20 bio-methanol test demonstrated the engine operating at various conditions including start-up, shut-down, idle to full power, and transient maneuvers. The engine performed as expected within the standard operating limits. The test also confirmed a reduction in NO x emissions...
Proceedings Papers

Proc. ASME. GT2024, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A010, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122824
... Abstract This paper introduces an analysis system for the performance and thermodynamics characteristics of a jet engine in real-time. Parameters such as air mass flowrate, fuel to air ratio, temperature before turbine are calculated continuosly in real-time. Basis functions of the program...
Proceedings Papers

Proc. ASME. GT2024, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T08A011, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128161
..., availability, and performance of the gas turbine fleet within the U.S. power grid. The standards would impact the costs of operating the fleet which will impact fleet owners and operators and the public. The proposed standards limit CO 2 emissions from new and existing sources and are justified...
Proceedings Papers

Proc. ASME. GT2024, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T07A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123953
... Abstract In this paper, we present an approach for teaching turbojet engine performance that combines mathematical analysis with the use of gas turbine performance software to provide students with a comprehensive and in-depth understanding of engine performance and how it is affected by design...
Proceedings Papers

Proc. ASME. GT2024, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T07A008, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128892
... Concepts São José dos Campos, Brazil Mayara Lopes Salgado Aeronautics Institute of Technology, ITA São José dos Campos, Brazil ABSTRACT This work aims to provide a methodology for defining the design point for industrial gas turbine considering the economic, environmental, and engine performance aspects...
Proceedings Papers

Proc. ASME. GT2024, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T08A007, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126838
... as a fuel. Among the many technical challenges of implementing hydrogen on existing units is the potential impact on performance and on hot gas path components’ durability. The effects on performance can vary depending on the existing combustion system configuration, as some combustors utilize water...
Proceedings Papers

Proc. ASME. GT2024, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T08A009, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128029
..., and replace life limited parts. The complexity and invasiveness of maintenance often leads to variability in the resulting performance recovery. For example, parts may not be installed correctly or controls may not be adjusted after the outage as needed. While engineers have a personal ‘expectation model...
Proceedings Papers

Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T16A003, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124937
...-design operations. An example of such a design with reheat is GT24/GT26 industrial gas turbine engines. In this paper, a novel simulation method for off-design thermodynamic performance of reheat gas turbines has been introduced and a novel performance control schedule for part-load operations at various...
Proceedings Papers

Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A023, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125908
... and the underlying loss production mechanism of wet compressions are neglected and thus remain unquantified. The present work investigated the effect of WI on key performance and aerodynamic parameters in a fully integrated compressor of a generic turbofan engine using Computational Fluid Dynamics (CFD) analysis...
Proceedings Papers

Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A029, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126463
... Abstract The performance and reliability of a compressor can be adversely affected by its inlet conditions. In this paper, the effect of planar wave on a two-stage axial compressor is investigated experimentally with aperiodic inlet dynamic distortions generated by the insertion and extraction...
Proceedings Papers

Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A001, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-120925
... Abstract This paper presents the application of a new exergy balance decomposition allowing to explicitly isolate the compressible and thermal contributions to overall efficiency for the NASA rotor 37 performance analysis. Firstly, the theoretical aspect of this new decomposition is discussed...
Proceedings Papers

Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A022, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125784
... Abstract In the continuation of ongoing works at ONERA, aiming at performing exergy-based analyses of steady numerical solutions corresponding to complex internal or external flows, this paper presents a first application to the performance investigation of the NASA SDT configuration. Different...
Topics: Exergy, NASA
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. 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 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...