Hydrogen has been identified as a promising decarbonization fuel in internal combustion engine (ICE) applications in many areas including heavy-duty on- and off-road, power-generation, marine, etc. Hydrogen ICEs can achieve high power density and very low tailpipe emissions. However, there are challenges; designing systems for a gaseous fuel with its own specific mixing, burn rate and combustion control needs, which can differ from legacy products.The primary pollutant of concern for Hydrogen ICEs is NOx which can be addressed by running the engine at very lean equivalence ratios and the use of Exhaust Gas Recirculation (EGR). Computation Fluid Dynamics (CFD) is a valuable tool to model the combustion characteristics under different conditions, as presented in SAE-2023-01-0197 [1], which can also be used to predict thermal loading. Being able to determine the thermal distribution and temperatures of the power cylinder components has always been critical to the design and development of ICE programmes. This remains a key requirement when considering hydrogen as an alternative fuel for both clean sheet hydrogen ICE designs and implementation of fuel conversions. Significant improvements have been made in recent years in the speed and accuracy of CFD analytical tools for combustion and thermal prediction, but these still present lead times that can preclude their use in early concept work or parametric studies.SAE-2022-01-0597 [2] presented a new analytical FE-based tool, complementary to 3D CFD, that calculates thermal boundary conditions using physical models and semi-empirical correlations. This paper presents the extension of this tool to support alternative fuels including hydrogen, with validation on a Euro VI HD Diesel engine converted to operate on hydrogen gas using direct injection. Results and measurements are presented at full and part-load conditions including a lambda (λ) swing to investigate the effect of different equivalence ratios on structural temperature.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Calculation of Thermal Boundary Conditions for Hydrogen Internal Combustion Engines


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Bell, David (Autor:in) / Shapiro, Evgeniy (Autor:in) / Hynous, Jan (Autor:in) / Valenta, Lukáš (Autor:in) / Grimley, Peter (Autor:in) / Osborne, Richard (Autor:in)

    Kongress:

    Energy & Propulsion Conference & Exhibition ; 2023



    Erscheinungsdatum :

    31.10.2023




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Internal combustion engines

    Ganesan, V. | TIBKAT | 1996


    Internal Combustion Engines

    Klell, Manfred / Eichlseder, Helmut / Trattner, Alexander | Springer Verlag | 2022


    Modelling of hydrogen injection and combustion in internal combustion engines

    Vogl, P. / Zimmermann, I. / Pfitzner, M. | Tema Archiv | 2006


    Internal-combustion engines

    Lichty, Lester Clyde | TIBKAT | 1951


    Internal combustion engines

    Lichty, Lester Clyde | TIBKAT | 1939