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Thermal Science 2010 Volume 14, Issue suppl., Pages: 197-208
https://doi.org/10.2298/TSCI100505069P
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Experimental determination of double vibe function parameters in diesel engines with biodiesel

Pešić Radivoje B. ORCID iD icon
Davinić Aleksandar Lj.
Taranović Dragan S.
Miloradović Danijela M. ORCID iD icon
Petković Snežana D.

A zero-dimensional, one zone model of engine cycle for steady-state regimes of engines and a simplified procedure for indicator diagrams analysis have been developed at the Laboratory for internal combustion engines, fuels and lubricants of the Faculty of Mechanical Engineering in Kragujevac. In addition to experimental research, thermodynamic modeling of working process of diesel engine with direct injection has been presented in this paper. The simplified procedure for indicator diagrams analysis has been applied, also. The basic problem, a selection of shape parameters of double Vibe function used for modeling the engine operation process, has been solved. The influence of biodiesel fuel and engine working regimes on the start of combustion, combustion duration and shape parameter of double Vibe was determined by a least square fit of experimental heat release curve.

Keywords: biodiesel, diesel engine, double Vibe, heat release curve