Derivation and validation of a heat transfer model in a hydrogen combustion engine

Michl J, Neumann J, Rottengruber H, Wensing M (2016)

Publication Type: Journal article

Publication year: 2016

Journal

Applied Thermal Engineering Elsevier

Book Volume: 98

Pages Range: 502-512

DOI: 10.1016/j.applthermaleng.2015.12.062

Abstract

Due to marked differences of material properties and combustion characteristics between hydrogen and carbon-based fuels, an increased heat flux inside the cylinder of hydrogen-fuelled internal combustion engines occurs. The present study aims for a simulation model that describes the wall heat transfer within the entire range of engine calibration possibilities. Conducted experiments on a hydrogen engine equipped with temperature sensors provide the base for the present study. Using the surface temperature method, highly resolved instantaneous surface heat fluxes can be identified. These measurements are compared with results from published heat transfer models that are originally developed for conventional fuels. As no satisfying result with these models can be obtained for the hydrogen engine, a modified heat transfer model is derived and validated based on the experimental data. Necessary developments on characteristic model features lead to a distinctive model for a hydrogen engine. It is demonstrated that the proposed model attains a consistently high prediction quality for a broad range of engine calibration variabilities.

Authors with CRIS profile

Michael Wensing Professur für Fluidsystemtechnik

Involved external institutions

BMW AG - Bayerische Motoren Werke / BMW Group DE Germany (DE) Otto-von-Guericke-Universität Magdeburg DE Germany (DE)

How to cite

APA:

Michl, J., Neumann, J., Rottengruber, H., & Wensing, M. (2016). Derivation and validation of a heat transfer model in a hydrogen combustion engine. Applied Thermal Engineering, 98, 502-512. https://dx.doi.org/10.1016/j.applthermaleng.2015.12.062

MLA:

Michl, Johannes, et al. "Derivation and validation of a heat transfer model in a hydrogen combustion engine." Applied Thermal Engineering 98 (2016): 502-512.

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