The Effect of Fuel Properties on Low and High Temperature Heat Release and Resulting Performance of an HCCI Engine

2004 ◽  
Author(s):  
Gen Shibata ◽  
Koji Oyama ◽  
Tomonori Urushihara ◽  
Tsuyoshi Nakano
Keyword(s):  
High Temperature ◽  
Heat Release ◽  
Fuel Properties ◽  
Hcci Engine ◽  
Temperature Heat

Intermediate temperature heat release in an HCCI engine fueled by ethanol/n-heptane mixtures: An experimental and modeling study

2014 ◽  
Vol 161 (3) ◽  
pp. 680-695 ◽  
Author(s):  
David Vuilleumier ◽  
Darko Kozarac ◽  
Marco Mehl ◽  
Samveg Saxena ◽  
William J. Pitz ◽  
...  
Keyword(s):  
Heat Release ◽  
Intermediate Temperature ◽  
Hcci Engine ◽  
Temperature Heat ◽  
Modeling Study

scholarly journals Simulation of predictive kinetic combustion of single cylinder HCCI engine

2020 ◽  
Author(s):  
Ibham Veza ◽  
Mohd Farid Muhamad Said ◽  
Zulkarnain Abdul Latiff ◽  
Mohd Faizal Hasan ◽  
Rifqi Irzuan Abdul Jalal ◽  
...  
Keyword(s):  
Heat Release ◽  
Air Temperature ◽  
Engine Performance ◽  
Zone Model ◽  
Hcci Engine ◽  
Hcci Combustion ◽  
Temperature Heat ◽  
Performance And Emissions ◽  
Improved Performance ◽  
Start Of Combustion

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.

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