1–20 von 286 Ergebnissen
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    The influence of aircraft operations on air quality at airports

    Segal, H. / Yamartino, R. | Tema Archiv | 1981
    Emission standards for aircraft engines were promulgated in 1973 after it was determined that these engines were significant sources of ...

    Estimate of contribution of Jet aircraft operations to trace element concentration at or near airports

    Fordyce, J.S. / Sheibley, D.W. | Tema Archiv | 1975
    Samples of ASTM type A jet fuel were analyzed for trace element content by instrumental neutron activation techniques. Forty-nine elements ...

    NASA/Army/Bell XV-15 tiltrotor low noise terminal area operations flight research program

    Conner, D.A. / Edwards, B.D. / Decker, W.A. et al. | Tema Archiv | 2002
    noise reduction potential for tilt-rotor aircraft during terminal area operations. Lower hemispherical noise characteristics for a wide range of ...

    An experimental investigation on performance, emissions, and combustion in a manifold injection for different exhaust gas recirculation flowrates in hydrogen-diesel dual-fuel operations

    Saravanan, N. / Nagarajan, G. | Tema Archiv | 2008
    cylinder. The injection timing and the injection duration of hydrogen were optimized on the basis of performance and emissions. Best results were ...

    Environmental impact assessment of aviation emission reduction through the implementation of composite materials

    Timmis, Andrew J. / Hodzic, Alma / Koh, Lenny et al. | Tema Archiv | 2015
    Purpose: Carbon-fibre-reinforced polymers (CFRP) have been developed by the aviation industry to reduce aircraft fuel burn and emissions of ...

    A critical assessment of motives for product recovery: the case of engine remanufacturing

    Seitz, Margarete A. | Tema Archiv | 2007
    products. The automotive sector, in particular, has a strong history of product recovery operations, such as remanufacturing. Alongside this ...

    Performance investigation of 2.4 kW PEM fuel cell stack in vehicles

    Corbo, P. / Migliardini, F. / Veneri, O. | Tema Archiv | 2007
    with the scope of minimizing the energy consumptions associated to humidification, cooling and reactant feeding operations. The results ...

    Comparative assessment of greenhouse gas mitigation of hydrogen passenger trains

    Haseli, Y. / Naterer, G.F. / Dincer, I. | Tema Archiv | 2008
    This paper examines a comparative assessment in terms of CO2 emissions from a hydrogen passenger train in Ontario, Canada, particularly ...

    Heat of reaction measurements of sodium borohydride alcoholysis and hydrolysis

    Zhang, Jinsong / Fisher, T.S. / Gore, Jay P. et al. | Tema Archiv | 2006
    On-board hydrogen storage has been identified as one of the most challenging technical barriers to the possible transition from gasoline to ...

    Analysis and modeling of flexural deformation of laminated steel

    Xiao, Xinran / Hsiung, Ching-Kuo / Zhao, Zhong | Tema Archiv | 2008
    automotive applications. Published work indicates that the tensile properties of the laminated steel follow the prediction of the rule of mixtures ...

    A comparison of environmental benefits of transport and electricity applications of carbohydrate derived ethanol and hydrogen

    Melamu, Rethabile / von Blottnitz, Harro | Tema Archiv | 2009
    It may soon become possible to produce hydrogen from hydrolysed carbohydrates instead of ethanol via fermentation and distillation ...

    Influence of cross-sectional area and aspect ratio of shaft on natural ventilation in urban road tunnel

    Ji, J. / Han, J.Y. / Fan, C.G. et al. | Tema Archiv | 2013
    This paper has analysed the influence of cross-sectional area and aspect ratio of shaft on natural ventilation in urban road tunnel fires ...

    Life cycle assessment of Norwegian road tunnel

    Huang, Lizhen / Bohne, Rolf Andre / Bruland, Amund et al. | Tema Archiv | 2015
    Purpose: This paper estimates the life cycle environmental impacts of the standard road tunnel in Norway. The results can then serve as ...

    Environmental impacts of hybrid and electric vehicles - a review

    Hawkins, Troy R. / Gausen, Ola Moa / Strömman, Anders Hammer | Tema Archiv | 2012
    A literature review is undertaken to understand how well existing studies of the environmental impacts of hybrid and EV (electric vehicles ...

    Automotive storage of hydrogen in alane

    Ahluwalia, R.K. / Hua, T.Q. / Peng, J.K. | Tema Archiv | 2009
    of overcoming this limitation is to formulate an alane slurry that can be easily loaded into a fuel tank and removed for off-board ...

    Production of dimethyl ether and hydrogen by methanol reforming for an HCCI engine system with waste heat recovery - Continuous control of fuel ignitability and utilization of exhaust gas heat

    Shudo, Toshio / Shima, Yosuke / Fujii, Tatsuya | Tema Archiv | 2009
    shown that adjusting the proportion of dimethyl ether (DME) and hydrogen-containing methanol-reformed gas (MRG) can control the ignition timing ...

    An analytical and experimental investigation of high-pressure catalytic steam reforming of ethanol in a hydrogen selective membrane reactor

    Papadias, Dennis D. / Lee, Sheldon H.D. / Ferrandon, Magali et al. | Tema Archiv | 2010
    The objective of this work was to explore the benefits of high-pressure steam reforming of ethanol for the production of hydrogen needed to ...

    Plasma-assisted catalytic reforming of propane and an assessment of its applicability on vehicles

    Horng, Rong-Fang / Lai, Ming-Pin / Chang, Yuh-Ping et al. | Tema Archiv | 2009
    A plasma-catalyst hybrid converter operating under atmospheric pressure was developed and a series of experiments were carried out to ...

    An investigation of engine performance parameters and artificial intelligent emission prediction of hydrogen powered car

    Ho, Tien / Karri, Vishy / Lim, Daniel et al. | Tema Archiv | 2008
    With the depletion of fossil fuel resources and the potential consequences of climate change due to fossil fuel use, much effort has been ...

    The production of hydrogen through the uncatalyzed partial oxidation of methane in an internal combustion engine

    Karim, Ghazi A. / Wierzba, I. | Tema Archiv | 2008
    The thermodynamic and kinetic limitations of the uncatalyzed partial oxidation of methane for the production of synthesis gas, which is ...