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Keywords: efficiency
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Proceedings Papers

Proc. ASME. GT2022, Volume 5: Education; Electric Power; Fans and Blowers, V005T09A003, June 13–17, 2022
Paper No: GT2022-81807
... Abstract The current thermal performance of advanced gas turbines (J class) leads to combined cycle efficiencies exceeding 62%. Such results were achieved by making the gas turbines bigger, i.e., above 350 MW (larger air flow), and by increasing the firing temperature. However, a very...
Proceedings Papers

Proc. ASME. GT2022, Volume 5: Education; Electric Power; Fans and Blowers, V005T09A002, June 13–17, 2022
Paper No: GT2022-81802
... ABSTRACT Modern heavy duty industrial gas turbines in combined cycle configuration, with rated efficiencies (at ISO base load) above 60% net LHV, are expected to play a significant role in reducing the carbon footprint of utility scale electricity generation. Even without post-combustion capture, simply...
Proceedings Papers

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A023, June 13–17, 2022
Paper No: GT2022-82080
... Abstract Compressor performance prediction is still one of the significant interests in the turbomachinery research field. The two critical parameters for compressor design are adiabatic efficiency and stability margin. The Spalart-Allmaras (SA) turbulence model and modified SA models...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A003, June 13–17, 2022
Paper No: GT2022-79398
... the reciprocating steam engines until around 1930 with the exception of steam locomotives and some other niche applications. Up to now in steam cycle technology mostly the isentropic efficiency definition for expansion is used. Such numbers depend both on the dissipation and on the pressure ratio. In history...
Proceedings Papers

Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A042, June 13–17, 2022
Paper No: GT2022-81643
... addition. If flashback were occurring, the emissions levels would be expected to be significantly higher. The results also demonstrate that added hydrogen to the fuel does not have a statistically significant impact on overall system efficiency. In general, the results show that the injectors can withstand...
Proceedings Papers

Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T06A031, June 13–17, 2022
Paper No: GT2022-83003
... scenarios) that could facilitate or hamper the widespread of the proposed technologies. Keywords: Combined Cycles, Power-to-X, flexibility, cogeneration, power-to-hydrogen, power-to-ammonia, efficiency NOMENCLATURE BESS Battery Energy Storage System 1 These projects have received funding from the European...
Proceedings Papers

Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A035, June 7–11, 2021
Paper No: GT2021-59589
... describes the process of gas-dynamic modernization, development, optimization, stability margins; efficiency. modernization of a 16-stage axial compressor of an industrial gas turbine unit. Tests of the baseline variant of the compressor NOMENCLATURE revealed a significant shortfall of efficiency, pressure...
Proceedings Papers

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A036, June 7–11, 2021
Paper No: GT2021-59867
...Abstract Abstract This work will demonstrate how the Energy Recovery Inc. (ERI) engineering team improved the efficiency of a multistage pump by about 10% at the first stage, which translated into a 3% increase in the overall multistage pump efficiency; according to a set of engineering...
Proceedings Papers

Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT33A012, September 21–25, 2020
Paper No: GT2020-14674
... Industries, Ltd, Takasago, Japan 4Mitsubishi Hitachi Power Systems, Ltd, Takasago, Japan ABSTRACT This paper presents the computational methodology, and experimental investigations accomplished to enhance the efficiency of a turbine stage by applying non-axisymmetric profiling on the rotor hub wall...
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A042, September 21–25, 2020
Paper No: GT2020-15055
...ENTROPY GENERATION AND EFFICIENCY OF A TRANSONIC ROTOR WITH WATER INJECTION: A NUMERICAL STUDY Natan Zawadzki, Artur Szymanski, David Alejandro Block Novelo, Uyioghosa Igie Centre for Propulsion Engineering School for Aerospace, Transport and Manufacturing Cranfield University Cranfield...
Proceedings Papers

Proc. ASME. GT2020, Volume 2D: Turbomachinery, V02DT38A014, September 21–25, 2020
Paper No: GT2020-14900
... of multi-stage axial compressors using 3D CFD modeling and commercial optimization programs as the main tools was developed. The basic parameters of the compressor (efficiency, pressure ratio, mass flow rate, etc.) can be improved using the created method correcting the shape of the blade profiles...
Proceedings Papers

Proc. ASME. GT2013, Volume 4: Ceramics; Concentrating Solar Power Plants; Controls, Diagnostics and Instrumentation; Education; Electric Power; Fans and Blowers, V004T10A002, June 3–7, 2013
Paper No: GT2013-94157
... of general design recommendations originates from this work, whereas the optimization loops would need to be repeated for other cooling module types. locomotive cooling fan guide vanes optimization CFD efficiency acoustics sound noise 1 Copyright © 2013 by ASME AERODYNAMIC AND ACOUSTIC...
Proceedings Papers

Proc. ASME. GT2010, Volume 7: Turbomachinery, Parts A, B, and C, 1937-1949, June 14–18, 2010
Paper No: GT2010-22666
... industrial sectors, e.g. power generation, aircraft or automotive turbo chargers. For any application it is essential for the turbine to operate at best possible efficiency. It is known that for turbines the specific optimum achievable power output decreases with smaller size. A major contribution...
Proceedings Papers

Proc. ASME. GT2010, Volume 5: Industrial and Cogeneration; Microturbines and Small Turbomachinery; Oil and Gas Applications; Wind Turbine Technology, 495-506, June 14–18, 2010
Paper No: GT2010-23149
... 11 01 2011 The heat transfer occurring within a turbocharger is closely coupled to the internal combustion exhaust. This process is highly complex and it is not taken account either in the choice of components nor is it reflected in the efficiency maps. In particular the flow within...
Proceedings Papers

Proc. ASME. GT2008, Volume 6: Turbomachinery, Parts A, B, and C, 2329-2338, June 9–13, 2008
Paper No: GT2008-50503
... with the available experimental data. The second volute studied is the one used for a mixed flow turbine in the turbocharger test rig at Imperial College. In this part of the study, the interest is focused on the influence of the volute inlet flow conditions on its performance (efficiency, exit flow angle, etc...
Proceedings Papers

Proc. ASME. GT2002, Volume 1: Turbo Expo 2002, 209-216, June 3–6, 2002
Paper No: GT2002-30015
... amount of hydrogen can maintain its original efficiency and a loss of 14 efficiency points can be prevented. gas turbine low calorific fuel matching problem air/fuel premixing efficiency A ra ityo 26 th -1 -1 rw ww ch Premixing LCV gas with air inside the compressor of a gas turbine can s...
Proceedings Papers

Proc. ASME. GT2003, Volume 3: Turbo Expo 2003, 359-369, June 16–19, 2003
Paper No: GT2003-38772
... efficiencies up to around 90% [1]. Still 1 Copyright © 2002 by ASME antages and disadvantages are outlined. Comparison een the theoretic performance (expressed by specific cycle k and overall thermal efficiency) of wave-rotor-topped and eline engines shows a performance enhancement by up to . The results...
Proceedings Papers

Proc. ASME. GT2005, Volume 6: Turbo Expo 2005, Parts A and B, 771-782, June 6–9, 2005
Paper No: GT2005-68998
... aerodynamic performance efficiency transient short duration testing February 23, 2005 3:16 Proceedings of GT2005 ASME Turbo Expo 2005: Power for Land, Sea and Air June 6-9, 2005, Reno-Tahoe, Nevada, USA S developed to characterise the error signature of the encoder disc and the signal processing used...
Proceedings Papers

Proc. ASME. GT2005, Volume 5: Turbo Expo 2005, 529-535, June 6–9, 2005
Paper No: GT2005-69012
... 03 11 2008 Natural gas fired combined cycles have enjoyed increasing success in power generation over the past several years, driven to a significant degree by their high efficiency. This paper discusses development of a fuel moisturization system targeted at new construction...
Proceedings Papers

Proc. ASME. GT2005, Volume 5: Turbo Expo 2005, 537-549, June 6–9, 2005
Paper No: GT2005-69126
.... With proper condition monitoring techniques, a set of tests were developed in order to identify the proper water wash frequency and the dissolving agent used to water wash. The goal of the water wash program is to maximize turbine power, and efficiency; while minimizing maintenance labor, and material...