Diesel HCCI Combustion Control Parameters Study using n-Heptane Reduced Chemical Kinetic Mechanism

Juttu, Simhachalam; Thipse, S. S.; Marathe, N. V.; Babu, M. K. Gajendra

doi:10.4271/2008-28-0036

Cited by 4 publications

(1 citation statement)

References 8 publications

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“…7,8 It can be adopted in any size of transportation engine, ranging from small, 9,10 lightduty 11,12 and heavy-duty engines, [13][14][15] and large ship engines. 16 Various LTC concepts including homogenous charge compression ignition (HCCI), [17][18][19][20][21][22][23] uniform bulky combustion system (UNIBUS), 24 modulated kinetics (MK), 25 premixed charge compression ignition (PCCI), [26][27][28] homogeneous charge diesel combustion (HCDC), [29][30][31] homogeneous charge late injection (HCLI), 32 and reactivity controlled compression ignition (RCCI), 33,34 are being intensively investigated as potential future alternatives for efficient internal combustion engines. Although various acronyms have been assigned to this new combustion process, they still refer to the common fundamental characteristics of a premixed fuel-air mixture and auto-ignited combustion, with the goal of lowering combustion temperatures to advantageously alter the chemistry of NO x and/or soot formation.…”

Section: Introductionmentioning

confidence: 99%

Comparative assessment of performance, emissions and combustion characteristics of gasoline/diesel and gasoline/biodiesel in a dual-fuel engine

et al. 2015

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In recent years, rapid growth in population, development, and industrialization have led to a high demand for energy worldwide. Biofuels from bio-based products can be considered an alternative to fossil fuels used in the transport sector. However, the use of biodiesel in conventional diesel combustion engines has usually caused lower thermal efficiency and higher specific fuel consumption. Using alternative fuels and switching to promising combustion technologies such as low temperature combustion (LTC) are reliable approaches to address this issue. This research aims to use biofuels as an alternative energy source for engines operating in dual-fuel combustion mode. The effects of diesel/biodiesel strategies on dual-fuel combustion were investigated. This dual-fuel combustion mode proposes port fuel injection of gasoline and direct injection of diesel/biodiesel fuel with rapid in-cylinder fuel blending. The results of engine performance, emissions, and cylinder pressure were recorded and analyzed. The results showed that engines operating under dual-fuel combustion mode could achieve high efficiency with near zero nitrogen oxide (NO x ) and smoke emissions. The biodiesel-gasoline dual-fuel combustion mode showed lower hydrocarbon (HC) and carbon monoxide (CO) emissions than the diesel-gasoline dual-fuel combustion mode. The oxygen content in biodiesel is especially useful in limiting locally fuel rich regions, resulting in improved combustion and thereby reducing HC and CO emissions simultaneously.

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Section: Introductionmentioning

confidence: 99%

Comparative assessment of performance, emissions and combustion characteristics of gasoline/diesel and gasoline/biodiesel in a dual-fuel engine

et al. 2015

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Influence of fuel type, dilution and equivalence ratio on the emission reduction from the auto-ignition in an Homogeneous Charge Compression Ignition engine

Machrafi

Cavadias

Amouroux

2010

Energy

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One technology that seems to be promising for automobile pollution reduction is the Homogeneous Charge Compression Ignition. This technology still faces auto-ignition and emission control problems. This paper focuses on the emission problem, since it is incumbent to realize engines that pollute less. For this purpose, this paper presents results concerning the measurement of the emissions of CO, NO x , CO 2 , O 2 and hydrocarbons. HCCI conditions are used, with equivalence ratios between 0.26 and 0.54, inlet temperatures of 70 0 C and 120 o C and compression ratios of 10.2 and 13.5, with different fuel types: gasoline, gasoline surrogate, diesel, diesel surrogate and mixtures of nheptane/toluene. The effect of dilution is considered for gasoline, while the effect of the equivalence ratio is considered for all the fuels. No significant amount of NO x has been measured. It appeared that the CO, O 2 and hydrocarbon emissions were reduced by decreasing the toluene content of the fuel and by decreasing the dilution.The opposite holds for CO 2 . The reduction of the hydrocarbon emission appears to compete with the reduction of the CO 2 emission. Diesel seemed to produce less CO and hydrocarbons than gasoline when auto-ignited. An example of emission reduction control is presented in this paper.

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A critical insight review on homogeneous charge compression ignition engine characteristics powered by biofuels

Saiteja

Ashok

2021

Fuel

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Diesel HCCI Combustion Control Parameters Study using n-Heptane Reduced Chemical Kinetic Mechanism

Cited by 4 publications

References 8 publications

Comparative assessment of performance, emissions and combustion characteristics of gasoline/diesel and gasoline/biodiesel in a dual-fuel engine

Comparative assessment of performance, emissions and combustion characteristics of gasoline/diesel and gasoline/biodiesel in a dual-fuel engine

Influence of fuel type, dilution and equivalence ratio on the emission reduction from the auto-ignition in an Homogeneous Charge Compression Ignition engine

A critical insight review on homogeneous charge compression ignition engine characteristics powered by biofuels

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