Numerical Analysis of Influence of EGR on combustion of Biogas fuelled HCCI engines and the Possibility to Use EGR for reducing the High Intake Temperature Requirements (CROSBI ID 604943)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Kozarac, Darko ; Vuilleumier, David ; Saxena, Samveg ; Dibble, Robert
engleski
Numerical Analysis of Influence of EGR on combustion of Biogas fuelled HCCI engines and the Possibility to Use EGR for reducing the High Intake Temperature Requirements
Numerical study that analyzed the influence of combustion products (CP) concentration on the combustion characteristics (combustion timing and combustion duration) of a biogas fuelled HCCI engine was made. The purpose of the study was to investigate the possibility of using internal exhaust gas recirculation (EGR) enabled by negative valve overlap (NVO) for reducing the high intake temperature requirement observed in biogas fuelled HCCI engines. The analysis used a validated engine model made in AVL Boost. The results showed that when CP’s are increased the required intake temperature for the same combustion timing must be increased. When NVO is used the cylinder temperature does increase, but the influence of CP almost entirely counteracts this effect. Additionally, it has been observed that with larger fractions of CP some instability of combustion in the calculation was obtained which indicates that the increase of EGR might produce some combustion instability.
Biogas; HCCI; Negative valve overlap; Internal EGR; Simulation
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Podaci o prilogu
2013.
objavljeno
Podaci o matičnoj publikaciji
Digital Proceedings of 8th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES Conference
Ban, Marko ; et al.
Zagreb: University of Zagreb - Faculty of Mechanical Engineering and Naval Architecture
1847-7178
Podaci o skupu
8th Conference on Sustainable Development of Energy, Water and Environment Systems
predavanje
22.09.2013-27.09.2013
Dubrovnik, Hrvatska