... Abstract We present a probabilistic model for quantifying the number of load cycles for nucleation of forging flaws — for a 3.5NiCrMoV high strength low alloy rotor steel — into a crack under gas turbine operating conditions. The model correlates low cycle fatigue data, ultrasonic testing...

... of the design guideline in actual gas turbines for power generation was confirmed. stall surge axial compressor gas turbine vortex rotating instability tip leakage vortex breakdown Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022...

... will be continuously improved as the relevant experimental data appears. environmental particle sand rebound deposition gas turbine hot-sections Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-80013 PARTICLE...

... Abstract Nonlinear gas path analysis (NGPA) is an important method for gas path fault diagnosis, and it is also the main technology for component performance estimation of gas turbine engines. However, the solution speed of the nonlinear gas path model is difficult to meet the time requirements...

... unburnt hydrocarbon and soot are likely to be produced. For low emissions gas turbines using liquid fuels, such as diesel, jet in crossflow is one the approaches to achieve efficient liquid jet breakup and evaporation as well as superior mixing characteristics. In order to develop low emissions fuel...

... Manufacturing (AM) and Investment Casting (IC), for the production of a 1° stage gas turbine nozzle ring in order to determine which method is the most sustainable on the Life Cycle. AM technologies brought to the world new design possibilities which become very useful for those items whose production rate...

..., increase the flexibility, and allow the detection of single and multiple failures. The methodology is applied to a 2-shaft industrial gas turbine engine for the automated early detection of single and multiple failures with the presence of measurement noise. The methodology offers performance prediction...

... a constant dissipation rate along the expansion change of state in contrast to the isentropic efficiency. reciprocating steam wet steam turbine expansion polytropic isentropic efficiency gas turbine Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition...

... Abstract Gas turbines operating on liquid fuels may produce higher NOx and soot emissions and may suffer from reduced combustion part durability, as compared to gas turbines operating on gaseous fuels. With some fuels, like diesel (aka light distillate), the NOx emissions increase is related...

... Abstract Siemens Energy is developing the required technologies to operate its gas turbines on up to 100% H 2 by 2030 to support the target of limiting global warming to 1.5 degrees Celsius. A focused effort has been undertaken to develop a technology platform for the Siemens Energy GT...

... and the associated development steps. Finally, test results from rig and engine testing are presented. combustion gas turbine Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82299 ADVANCED COMBUSTION SYSTEM...

... Abstract Additive manufacturing (AM) enables designs that are not manufacturable with conventional techniques and that offer reduced weight and better thermal performance. This is of particular relevance for gas turbine cooling as well, as proved by the first applications of combustors...

... of the damping performance. additive manufacturing laser powder bed fusion design modelling damping optimization vibrations blade gas turbine turbine engine Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands...

... Abstract Single crystal (SX) nickel-base superalloys have been extensively used for the highest temperature gas turbines blades. In power generation turbines, these alloys are often exposed to high temperatures and stresses for extended periods of time and microstructural evolution occurs...

... Abstract Nickel-base superalloys containing 30 to 50% gamma prime (γ′) volume fraction are typically used in hot section components (e.g. guide vanes or blades) for power generating gas turbines, and suitable time dependent properties are required for long-term elevated temperature operation...

.... The maximum heat transfer characteristics can be achieved by a grooved wall of case LG compared with the other internal cooling techniques. swirl rough heat transfer pressure gas turbine Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022...

... Abstract Reduction of the start-up time and flexible operation require comprehensive testing and modification of a gas turbine. The cost of this testing can be significantly reduced by using reliable dynamic models to simulate critical regimes without the possibility of damage. This paper...

... in electroplating, anodizing and dye production industries, but has recently been identified as contaminant on serviced components of gas turbines. To this regard, there is the potential for Cr(VI) compounds to be present on gas turbine components serviced at high temperature, if calcium-containing insulating, anti...

... Abstract Industrial gas turbines are complex systems, and their proper analysis requires specific knowledge of the different components interacting with each other. One of the challenges is to accurately predict the overall performance of the system. To do so, a performance analysis tool can...

... Abstract The reduction of cooling air for first stage turbine components plays a vital role in improving the performance of heavy-duty gas turbines. To achieve this goal detailed knowledge of the external heat loads is required as well as introducing novel technologies to reduce the cooling air...