An Introduction to a Homogeneous Charge Compression Ignition Engine

Hairuddin, Abdul Aziz; Wandel, Andrew P.; Yusaf, Talal

doi:10.15282/jmes.7.2014.3.0101

Cited by 30 publications

(23 citation statements)

References 62 publications

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“…Biodiesel has low sulphur content, low aromatic content and oxygen containing compounds due to which the emissions of SO2, CO2, HC and PM are reduced. Besides, it has good ignition ability in engine owing to its high cetane number compared to that of conventional diesel fuel [10,[18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Performance and emission characteristics of compression ignition engine using methyl ester blends of jatropha and fish oil

Bhaskar¹,

Sendilvelan²,

Muthu³

et al. 2016

J. MECH. ENG. SCI.

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In this work, biodiesel obtained from the transesterfication of Jatropha seeds and Fish wastes is used as an alternative fuel to diesel in stationary single cylinder diesel engines. The biodiesel obtained has good ignition ability due to its relatively high cetane number compared to that of conventional diesel fuel. The performance, combustion and emission tests using Jatropha Oil Methyl Ester (JOME), Fish Oil Methyl Ester (FOME) and their blends (20% JOME and 20% FOME) with diesel were carried out at constant speed and variable loads condition. The results showed that both blends could be used as fuels for diesel engine without any major modification on the engine. Carbon monoxide (CO), UBHC and smoke emissions were observed to be lesser at all loads for both the blends compared to diesel fuel, while NOx emission was slightly higher. JOME blend was found to be better than FOME blend.

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Section: Introductionmentioning

confidence: 99%

Performance and emission characteristics of compression ignition engine using methyl ester blends of jatropha and fish oil

Bhaskar¹,

Sendilvelan²,

Muthu³

et al. 2016

J. MECH. ENG. SCI.

View full text Add to dashboard Cite

show abstract

“…Figure 11 illustrates piston dimension nomenclature. Vcomp is the volume of the combustion chamber at TDC (100 cm 3 ). The effects of piston geometry on HCCI engines fuelled by gasoline (iso-octane) using crevice sizes of 0.26, 1.3, and 2.1 mm were significant.…”

Section: Effects Of Different Piston Designs On Hcci Engines Performancementioning

confidence: 99%

“…The use of HCCI technology improves engines' performance such as higher combustion efficiency and lower emission levels of NOx and particulate matter [1][2][3]. These innovations come at the same time as increasing global concern for greenhouse gases leads to demands of automotive industries to manufacture engines with green technology.…”

Section: Introductionmentioning

confidence: 99%

The use of different types of piston in an HCCI engine: A review

Aljaberi¹,

Hairuddin²,

Aziz³

2017

Int. J. Automot. Mech. Eng.

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Homogenous charge compression ignition (HCCI) combines the advantages of spark ignition (SI) and compression ignition (CI) engines to improve fuel consumption and emission levels. HCCI engines have the advantage of relatively higher engine efficiency than SI engines while maintaining lower emissions levels than CI engines. Combustion in HCCI engines occurs spontaneously at any location once the fuel-air mixture reaches its chemical activation energy. Pistons have a major effect on controlling the combustion inside the combustion chamber of an HCCI engine. Many researchers have studied various designs for pistons to improve HCCI engines. The aim of this study is to explore these different types of pistons and their designs in terms of improving the performance of HCCI engines fuelled with gasoline. The most common pistons used in HCCI are twostroke pistons, bowl types, specialised pistons, and dome-shaped pistons; each offers distinct advantages and disadvantages. Software simulation is the latest way of determining the best piston to be used for HCCI engines, as it is more cost effective and less time consuming than experiments. Overall, bowl type pistons offer reduced fuel consumption and a higher load capacity when used in an HCCI engine.

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“…The HCCI technique is the process by which a homogeneous mixture of air and fuel is compressed until auto-ignition occurs near the end of the compression stroke, followed by a combustion process that is significantly faster than either compression ignition (CI) or spark ignition (SI) combustion [11][12][13][14]. The air/fuel mixture quality in HCCI engines is generally lean, auto-ignites in multiple locations and is then burned volumetrically without discernible flame propagation [15][16][17][18]. Combustion occurs when the homogeneous mixture has reached its chemical activation energy and is fully controlled by chemical kinetics [19], rather than by a spark or injection timing.…”

Section: Introductionmentioning

confidence: 99%

Single-zone zero-dimensional model study for diesel-fuelled homogeneous charge compression ignition (HCCI) engines using Cantera

Hairuddin¹,

Yusaf²,

Wandel³

2016

Int. J. Automot. Mech. Eng.

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Homogeneous charge compression ignition (HCCI) engine technology is relatively new and the combustion behavior in an HCCI engine is difficult to predict. The combustion is fully controlled by the chemical kinetics and the chemical reaction of the mixture is influenced by changing input parameters. A zero-dimensional single-zone model was used to investigate the combustion behavior of a diesel engine operating in HCCI mode. An open source chemical kinetics package from Cantera was used in this study. The combustion behaviour can be observed, where H2O2 was fully decomposed during the main combustion event. The time for H2O2 to completely decompose into OH radicals was very short, which was about 5°CA. The combustion phasing was predicted in accordance with the experiment. The auto-ignition can be controlled by controlling the intake temperature or AFR. The start of combustion was advanced by increasing the intake temperature from 20 to 70°C and reducing the AFR from 58 to 29. However, reducing AFR will increase the in-cylinder peak pressure. In general, a zero-dimensional model is a useful and faster tool to predict the combustion phasing. When coupled with chemical kinetics, it provides more accurate results.

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An Introduction to a Homogeneous Charge Compression Ignition Engine

Cited by 30 publications

References 62 publications

Performance and emission characteristics of compression ignition engine using methyl ester blends of jatropha and fish oil

Performance and emission characteristics of compression ignition engine using methyl ester blends of jatropha and fish oil

The use of different types of piston in an HCCI engine: A review

Single-zone zero-dimensional model study for diesel-fuelled homogeneous charge compression ignition (HCCI) engines using Cantera

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