Results 81 to 90 of about 391 (138)
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Advancements in Gas Turbine Vane Repair
ASME 2006 Power Conference, 2006The evolution of industrial gas turbines has been a driving factor in the advancement of repair techniques for industrial gas turbine components. Turbine vane segments (also known as stationary blades, non-rotational airfoils, or nozzles) are among the many components that have been a focus for repair development. Due to increasing engine efficiencies,
Julie McGraw +3 more
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Aircraft Engineering and Aerospace Technology, 1985
IN order to repair aircraft engine parts that would scarcely merit a second glance from the layman, Lufthansa is setting up an entirely new workshop at its Hamburg maintenance base. Construction costs alone run to DM 16 million, let alone another DM 7 million for workshop equipment. Yet the Airline will recoup this outlay in the space of a few years.
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IN order to repair aircraft engine parts that would scarcely merit a second glance from the layman, Lufthansa is setting up an entirely new workshop at its Hamburg maintenance base. Construction costs alone run to DM 16 million, let alone another DM 7 million for workshop equipment. Yet the Airline will recoup this outlay in the space of a few years.
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Cast alloys for gas turbine vanes
Metal Science and Heat Treatment, 19711. The investigation of the casting properties and manufacture of turbine vanes showed that it is possible to use investment casting for gas turbine vanes of the experimental alloys tested. 2. In alloys hardened with aluminum and titanium (alloys 1 and 2) the maximum short-term strength was retained to higher temperatures than for the ...
M. N. Efimova, E. N. Masaleva
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Probabilistic Life Assessment of Turbine Vanes
Volume 6: Structures and Dynamics, Parts A and B, 2011Life of a gas turbine vane generally depends on different factors such as scatter of material properties, load variation and manufacturing tolerances. However, deterministic finite element (FE) life analysis gives just a discrete value typically based on the nominal or worst case conditions.
Alexander N. Arkhipov +2 more
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Numerical prediction of turbine vane-blade aerodynamic interaction
23rd Joint Propulsion Conference, 1987A time-accurate analysis for turbine vane-blade interaction is presented. The analysis simultaneously solves the unsteady isentropic Euler equations in the vane and blade rows on a blade-to-blade surface of revolution. The equations are integrated on overlapped O-type grids using a rapid and robust explicit hopscotch algorithm. Vane and blade rows with
J. P. Lewis, R. A. Delaney, E. J. Hall
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International Journal of Refrigeration, 2015
Abstract The structure of newly designed turbo rotary Pars turbine shows similarities with the structure of commercially available vane compressors. The vane is embedded within the turbine mainframe whereas the other end is hinged to the rotor liner. Friction loads and pressure leaks occur in the vane side surface during the operation of the turbine.
Arabaci, Emre, OKUR, MELİH
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Abstract The structure of newly designed turbo rotary Pars turbine shows similarities with the structure of commercially available vane compressors. The vane is embedded within the turbine mainframe whereas the other end is hinged to the rotor liner. Friction loads and pressure leaks occur in the vane side surface during the operation of the turbine.
Arabaci, Emre, OKUR, MELİH
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Vane-Endwall Junction Optimization to Reduce Turbine Vane Passage Adiabatic Wall Temperatures
Journal of Propulsion and Power, 2004Secondary flows in airfoil passages have become increasingly important in the design of modern gas turbines as a result of several fundamental trends in gas turbine engine development. Driven to achieve higher engine efficiencies and specific thrust output, the gas turbine industry is continually pushing the envelope of maximum allowable turbine inlet ...
Andrew T. Lethander +3 more
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Turbine Exit Guide Vane Program.
1977Abstract : This report summarizes the results of an Air Force-sponsored Turbine Exit Guide Vane (EGV) Technology Development Program. In the EGV program, non-series EGV airfoils, designed for spanwise maximum inlet Mach numbers of 0.75 and average gas turnings of 38.0 deg (loading levels above those typical of state-of-the-art EGV's) demonstrated high ...
J. F. Soileau, W. S. Mitchell
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Thermo Mechanical Optimization of Cooled Turbine Vane
Volume 4: Turbo Expo 2007, Parts A and B, 2007This paper discuses the problem of cooling system optimization within a gas turbine vane regarding to thermo-mechanical behaviour of the component. The analysis involves the optimization of location and size of internal cooling passages within the vane. Cooling is provided with ten circular passages and heat is transported by convection.
Grzegorz Nowak +1 more
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Gas Turbine Ceramic Vane Testing
SAE Technical Paper Series, 1974<div class="htmlview paragraph">Prototype silicon nitride vanes for industrial and aircraft engines were constructed and tested. Relevant material properties were determined for hot pressed silicon nitride and silicon carbide. The capability of these ceramics was compared to vane superalloys in tests relating to high pressure and temperature gas ...
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