CFD study of a CI engine powered in the dual-fuel mode with syngas and waste vegetable oil

Syngas production from biomass gasification and its use in combined heat and power (CHP) generation systems is a feasible alternative to traditional fuels in Internal Combustion Engines (ICEs), although its quality is poorer in terms of calorific value and energy density. Therefore, a viable option...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-04, Vol.1868 (1), p.12014
Main Authors: Costa, M, Prati, M V, Simio, L De, Iannaccone, S, Piazzullo, D
Format: Article
Language:English
Subjects:
Biodiesel fuels
Calorific value
Cogeneration
Computational fluid dynamics
Diesel fuels
Dual fuel
Flux density
Gasification
Internal combustion engines
Materials recovery
Mathematical models
Physics
Pollutants
Synthesis gas
Vegetable oils
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Summary:Syngas production from biomass gasification and its use in combined heat and power (CHP) generation systems is a feasible alternative to traditional fuels in Internal Combustion Engines (ICEs), although its quality is poorer in terms of calorific value and energy density. Therefore, a viable option for its exploitation can be assured if ICEs operate in dual-fuel (DF) mode, where employing non-edible oils (as Waste Vegetable Oils, WVO) as a further residual material may solve issues related both to the utilization of diesel fuels and to the high costs for biodiesel production. The practice promotes a virtuous circle to enhance material recovery without disposal. A combined experimental-numerical activity for the analysis of the performances of a Compression Ignition (CI) engine in the DF mode with syngas and WVO is here presented. An appropriate pre-heating system is mounted on the engine injection line to reduce the WVO viscosity. Experimental data collected in terms of in-cylinder pressure cycle, heat release rates and main pollutants at different loads are used to validate a properly developed three-dimensional (3D) Computational Fluid Dynamics (CFD) model, that helps investigating the detail of the syngas fuelling on power output and emissions.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1868/1/012014