... Abstract The unpredictable flame-out may occur due to various factors such as weather conditions and bird strikes. After flame-out, the engine should undergo a challenging and risky restart process to restore thrust. Simulation model is an economy and repeatable tool to conclude the effects...

... surge control under uncertain and noisy conditions. AIF based control offers several advantages over traditional methods like Proportional-Integral-Derivative (PID) and Model Predictive Control (MPC). It inherently integrates perception and action, allowing for more adaptive and context-aware decision...

... damping after first resonance passing and damping changes during further runs. Performed CT-scans show formation of the powder sinter after HT and progressive sinter fragmentation caused by resonance passing cycles. additive manufacturing laser powder bed fusion design modelling inherent damping...

... these, engine maintenance needs to be planned timely and strategically. Advanced diagnostics and health monitoring methods are being developed at KLM Engine Services (ES) to improve engine maintenance. For health monitoring, gas path analysis is used which requires accurate engine performance models...

...Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-101631 NON-LINEAR REGRESSION MODEL FOR FITTING EXPERIMENTAL EMISSIONS DATA Denise Ahrens Rolls-Royce Deutschland Dahlewitz, Germany Sebastian Traub...

...-to-term analysis of the loss models used. turbomachine axial compressor loss decomposition modelling sensitivity analysis Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-101634 AXIAL COMPRESSOR...

... chosen for the study. Two designs have been modelled and manufactured using LPBF technology: a baseline design (‘Solid Blade’) and a new design where the airfoil was filled with a matrix of pockets with pins and lattice bars surrounded by non-fused powder (‘Lattice Blade’). Then, the damping ratio has...

... in the ancillary services market, and thus its profitability, by means of implementing a model of optimal dispatch operating on the ancillary services market. gas turbine flexibilization ancillary services heat pump modelling Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference...

... Abstract Gas turbines are internal combustion engines widely used in industry as main source of power for aircrafts, turbo-generators, turbo-pumps and turbo-compressors. Modelling these engines can help to improve their design and manufacturing processes, as well as to facilitate...

... Abstract Testing a sub-component or testing a scaled model are the approaches currently used to reduce the development cost of the new low-pressure (LP) section of a steam turbine. In any case, testing campaigns are run at a limited number of operating conditions. Therefore, some correlations...

... to an inaccurate result when blades showed a strong three-dimensional feature. To solve this problem, CFST needs to be properly modeled. In this paper, three-dimensional numerical simulation is conducted to find the area where CFST dominates. The influence of inlet Mach number, incidence, camber angles and sweep...

... Abstract Main objective of this paper is to assess the capability of numerical models in predicting NOx emissions and flame stabilization mechanisms of a heavy-duty gas turbine burner when operated with hydrogen and hydrogen-methane blends. Effort focused on the selection of the proper input...

... Abstract Gas turbine is a complex system operating in non-stationary operation conditions for which traditional model-based modelling approaches have poor generalization capabilities. To address this, an investigation of a novel data driven neural networks based model approach for a three-spool...

... arrangement turned out to be substantially unchanged with respect to single burner. Nevertheless, some discrepancies in magnitude have been highlighted and discussed. Details have been given involving deeper numerical analysis by means of a dedicated model developed by the authors in previous works. Indeed...

... a CFD commercial code with a set of user defined subroutines to model the effects of non-equilibrium steam evolution, droplets nucleation and growth. The numerical results have been compared to well-known test cases available in literature, to show the effects of different modeling hypotheses. The paper...

... to the pyrolyzer together with the GT exhaust gases. The IPRP concept was modelled through an homemade software, that utilizes thermodynamic relations, energy balances and data available in the Literature for BW pyrolysis products. The analysis was carried out investigating the influence on the plant performances...

... published orifice flow data and provide qualitative and quantitative information on these complex flows to support future air system component design. CFD Modelling Rotating Orifices Proceedings of 2003 ASME TURBO EXPO: Power for Land, Sea and Air June 16-19, 2003 - Atlanta, Georgia, USA GT2003...

.... The Royal Netherlands Naval College, together with Delft University of Technology is active in the field of advanced modelling of marine systems. A broad outline of work done in that area forms the second part of the paper. Recently it has been decided to start a collaboration between the two research...

... to suppress the creation of vortices in rotor cavities. CFD Modelling Offtake Passages Optimisation Proceedings of ASME Turbo Expo 2002: ASME Turbo Expo: Land, Sea & Air 2002 June 3-6, 2002, Amsterdam, The Netherlands ta G used to suppress the creation of vortices in rotor cavities. Keywords: CFD...

.... They are located in the upper part of the active bearing. A non-linear system model is developed for the rotor-bearing system that includes the described active bearing. The flow inside the upper chambers that control motion of the active pads was neglected due to their large volume. It results in a uniform...