1–20 of 126 hits
|

    Validation of the fuel saving potential of downsized and supercharged hybrid pneumatic engines using vehicle emulation experiments

    Dönitz, Christian / Voser, Christoph / Vasile, Iulian et al. | Tema Archive | 2011
    The pneumatic hybridization of power trains is especially effective when it is combined with strong downsizing and supercharging of spark ...

    Validation of an infrared extinction method for fuel vapor concentration measurements towards the systematic comparison between alternative and conventional fuels for aviation

    Fritzer, Johannes / Giuliani, Fabrice / Strzelecki, Alain et al. | Tema Archive | 2012
    Due to increasing oil prices and the obvious influence of the combustion of fossil fuel derivatives on climate change on the one hand and ...

    Unified applicable propulsion system performance metrics

    Schmitz, Oliver / Hornung, Mirko | Tema Archive | 2013
    propulsion systems and electric energy propulsion systems. In advance, the limitation of thermal-based figures of merit for the evaluation of hybrid ...
    Keywords: Gasturbine

    Understanding ice crystal accretion and shedding phenomenon in jet engines using a rig test

    Mason, Jeanne G. / Chow, Philip / Fuleki, Dan M. | Tema Archive | 2011
    visibility of the ice accretion process and easy access for video documentation. This paper presents one of the first efforts to simulate the warm ...

    Undergraduate Project in Compressor Rig Design, Fabrication, and Testing for Complete Engineering Training

    Duc Vo, Huu | Online Contents | 2016
    undergraduate engineering curriculum while giving them an extensive taste of the rich and intellectually challenging environment of gas turbine and ...
    Keywords: Gasturbine

    Turboelectric distributed propulsion benefits on the N3-X vehicle

    Dae Kim, Hyun / L. Felder, James / T. Tong, Michael et al. | Emerald Group Publishing | 2014
    mission. Predictions for landing and take-off NOX are estimated to be 85 per cent less than the Tier 6-CAEP/6 standard. Two variants of ...

    Turbine engine icing spray bar design issues

    Bartlett, C.S. | Tema Archive | 1995
    Die Vereisung von Flugzeugen kann außerordentlich gefährlich werden. Das Arnold Engineering Development Center betreibt eine ...

    Transient Response of a Short-Length (L/D = 0.2) Open-Ends Elastically Supported Squeeze Film Damper: Centered and Largely Off-Centered Whirl Motions

    San Andrés, Luis | Online Contents | 2016
    journal and its housing occurs as evidenced by a large magnitude recorded dynamic pressure (on the order of MPa). For whirl motions around various ...
    Keywords: Gasturbine

    Three-Dimensional Blade Stacking Strategies and Understanding of Flow Physics in Low-Pressure Steam Turbines—Part II: Stacking Equivalence and Differentiators

    Havakechian, Said | Online Contents | 2016
    Optimization of blade stacking in low-pressure (LP) steam turbine development constitutes one of the most delicate and time-consuming parts ...
    Keywords: Gasturbine

    Thermodynamic and Economic Analysis and Multi-objective Optimization of Supercritical CO2 Brayton Cycles

    Zhao, Hang | Online Contents | 2016
    Genetic Algorithm II (NSGA-II) is selected for the Pareto-based multi-objective optimization of the RRBC, with the maximum exergy efficiency and ...
    Keywords: Gasturbine

    The potential impact of utilizing advanced engine technology for a combat capable unmanned air vehicle (UAV)

    Bruening, G.B. / Snyder, J.R. / Fredette, R.E. | Tema Archive | 2001
    This paper evaluates the potential impact of utilizing advanced engine technology for a limited life, combat capable, anmanned air vehicle ...

    The Effects of Fuel Injection Pressure and Fuel Type on the Combustion Characteristics of a Diesel Engine

    Cowart, Jim | Online Contents | 2015
    , ignition delay (IGD) was shortened for all fuels with increasing fuel injection pressure and was shortened with higher CN fuels. The combustion ...
    Keywords: Gasturbine

    The Application of Similitude Theory for the Performance Prediction of Radial Turbines Within Small-Scale Low-Temperature Organic Rankine Cycles

    White, Martin | Online Contents | 2015
    predict the performance of the same turbine operating at different inlet conditions using R245fa, R123, and R1234yf. The similitude predictions ...
    Keywords: Gasturbine

    Technology demonstration nozzle for Mach 7 turboramjets

    Pirker, K. / Knott, U. | Tema Archive | 1995
    Im Rahmen des Projekts SÄNGER für ein wiederverwendbares Raumfahrzeug wurde von MTU eine Düse mit rechtwinkligem Querschnitt entwickelt ...

    Structural Deflection's Impact on Turbine Stator Well Heat Transfer

    Pohl, Julien | Online Contents | 2016
    of FEA and CFD modelling techniques to understand the thermo-mechanical behaviour of a dedicated turbine stator well rig, due to the ...
    Keywords: Gasturbine

    Structural Deflection's Impact in Turbine Stator Well Heat Transfer

    Pohl, Julien | Online Contents | 2017
    material limit in order to increase the overall performance and to minimize the engine-specific fuel consumption (SFC). To prevent overheating of ...
    Keywords: Gasturbine

    Stoichiometric operation of a gas engine utilizing synthesis gas and EGR for NO(x) control

    Smith, J.A. / Bartley, G.J.J. | Tema Archive | 2000
    characteristics of the fuel reforming catalyst are presented. Results show that thermal efficiency increases with increasing EGR for both natural gas ...

    Static and Modal Topology Optimization of Turbomachinery Components

    Rindi, Andrea | Online Contents | 2016
    holes). This methodology has been applied to a turbine component to reduce the static stress level and the weight of the part and, at the same ...
    Keywords: Gasturbine

    Start-stop characteristics and thermal behavior of a large hybrid airfoil bearing for aero-propulsion applications

    Kim, Daejong / Zimbru, George | Tema Archive | 2012
    Air/gas foil bearings (AFBs) have shown promise in high-speed micro- to mid-sized turbomachinery with a power range of 10∼300 kW or journal ...

    Spray and flame structure of a generic injector at aeroengine conditions

    Meier, Ulrich / Heinze, Johannes / Freitag, Stefan et al. | Tema Archive | 2012
    In support of the development of CFD for aeroengine combustion, quantitative measurements of spray properties and temperature were made. A ...