@article{MAKHILLJEAS2017121714769,
    title = {Pressure Distribution, CO and HC Emission on the Equivalence Ratio Variation of
Homogeneous Charge Compression Ignition (HCCI) Engine Simulation},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {12},
    number = {17},
    pages = {4291-4296},
    year = {2017},
    issn = {1816-949x},
    doi = {jeasci.2017.4291.4296},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2017.4291.4296},
    author = {Cokorda Pr and},
    keywords = {Combustion modeling,simulation,HCCI,Compression Ignition Direct Injection (CIDI),thermodynamic equations,experiment},
    abstract = {HCCI combustion mode is a combination of the modes of Compression Ignition (CI) and Spark
Ignition (SI). A very short duration of combustion in HCCI resulted in faster pressure increases than that at the
SI engine and even on the Compression Ignition Direct Injection (CIDI) engine. This research was aimed at
finding the pressure distribution and CO-HC emission of the engine. They were predicted on two models, i.e.,
single zone and multi zone models. Multi zone model divides the cylinder into ten different zones and 3 K
stratification temperatures. Two reaction mechanisms were implemented, i.e., detail mechanism and reduced
mechanism. Thermodynamic equations of the species involving in combustion reaction were presented in
polynomial function of specific heat coefficient, enthalpy and entropy within the temperature range. Reaction
mechanism was determined based on arhennius coefficient and state equation was presented in multi-fluid ideal
gas where the pressure and density of reactant were presented in the summations of pressure and density of
species. The rate of progress reaction was defined as the difference between forward rates and reverse rates
and the rate of progress species was defined as the summations of all the rate progress species involved in the
reaction. Both models were simulated on the crank angles of 1650-1700 referring to the experiments of the other
researchers. The simulation was conducted on five variations of equivalence ratio and was carried out using
kinetic reactions based software. The results were presented in graphics comparison of experiment and
simulation. Pressure distribution of the experimental and the simulation results on single zone model and multi
zone model showed the same tendency on the reduced mechanism results in the higher equivalence ratio. The
detailed mechanism on a single zone model gave closer results to the experimental one compared with the
reduced mechanism. While CO-HC emission of the experiment under reduced mechanism simulation seemed
fit quite well on the equivalence ratio of approximately 0.2 they, however, deviated far at higher equivalence
ratio because the fuel, theoretically, gets enough air to burn perfectly.}
    }