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Simulation of predictive kinetic combustion of single cylinder hcci engine

Veza, I. and Said, M. F. M. and Latiff, Z. A. and Hasan, M. F. and Jalal, R. and Ibrahim, N. M. I. N. (2019) Simulation of predictive kinetic combustion of single cylinder hcci engine. In: 3rd International Conference on Automotive Innovation Green Energy Vehicle, AiGEV 2018, 25-26 July 2018, Sri Manja Hotel Kuantan, Malaysia.

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Official URL: https://dx.doi.org/10.1063/1.5085960


Homogeneous Charge Compression Ignition (HCCI) engine has attracted great attention due to its improved performance and emissions compared to conventional engines. It can reduce both Nitrogen Oxides (NOx) and Particulate Matter (PM) emissions simultaneously without sacrificing the engine performance. However, controlling its combustion phasing remains a major challenge due to the absence of direct control mechanism. The start of combustion is entirely initiated by the chemical reactions inside the combustion chamber, resulted from the compression of its homogeneous mixtures. Varying some critical engine parameters can play a significant role to control the combustion phasing of HCCI engine. This paper investigates the characteristics of HCCI combustion fuelled with n-heptane (C7H16) using single-zone model computational software. The model enabled the combustion object to vary from cycle to cycle. Detailed simulations were conducted to evaluate the effects of air fuel ratio (AFR), compression ratio (CR) and intake air temperature on the in-cylinder pressure and heat release rate. The simulation results showed that the single-zone model was able to predict the two-stage kinetic combustion of HCCI engine; the Low Temperature Heat Release (LTHR) and the High Temperature Heat Release (HTHR) regions. It was found that minor changes in AFR, CR and inlet air temperature led to major changes in the HCCI combustion phasing.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:combustion phasing, two-stage kinetic combustion
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:89151
Deposited By: Narimah Nawil
Deposited On:26 Jan 2021 16:48
Last Modified:26 Jan 2021 16:48

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