The Effect of HCHO Addition on Combustion in an Optically Accessible Diesel Engine Fueled with JP-8

Jansons, Marcis; Florea, Radu; Zha, Kan; Gingrich, Eric

doi:10.4271/2010-01-2136

Cited by 12 publications

(7 citation statements)

References 24 publications

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“…Whereas RME added to jet fuel not only improves the cetane number, but it also modifies the carbon-to-hydrogen ratio, provides fuel-bound oxygen, reduces net heating value, the content of polycyclic aromatics, and improves lubricity of the fuel. Despite a large number of studies conducted in optically-accessible [13,15,[30][31][32], single cylinder engines [23,28,29,33,34], a spherical vessel [35], laboratory furnaces, burners, and afterburners [36] there is a lack of works on a real multi-cylinder diesel engine powered with JP-8 fuel and rapeseed biodiesel blends. The purpose of the research was to study the effect of RME added to JP-8 fuel on the autoignition delay, combustion history, heat release characteristics, engine performance parameters, and exhaust emissions.…”

Section: Introductionmentioning

confidence: 98%

Combustion phenomenon, performance and emissions of a diesel engine with aviation turbine JP-8 fuel and rapeseed biodiesel blends

Labeckas

Slavinskas

2015

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 98%

Combustion phenomenon, performance and emissions of a diesel engine with aviation turbine JP-8 fuel and rapeseed biodiesel blends

Labeckas

Slavinskas

2015

Energy Conversion and Management

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“…Primarily, researchers such as Zha et al 100 had used the high-speed complementary metal-oxide-semiconductor (CMOS) color camera and the charge-coupled device (CCD) camera in addition to the in-cylinder pressure transducer and exhaust gas analyzer to study the effects of kerosene combustion in optical DICI engines. Various other researchers such as Lee et al, 5,101 Yu et al, 102 Jansons et al, 103,104 Chang et al, 105 as well as Lee 106 also contributed significantly to the study of the behavior and characteristics of kerosene combustion in optical engines.…”

Section: Experimental Investigations Of Kerosene Combustion and Emissions In Dici Enginesmentioning

confidence: 99%

“…102 This was due to the lower aromatic content of JP-8 as well as its higher volatility that enabled it to evaporate and mix with ambient in-cylinder air more easily. Next, they investigated the effects of formaldehyde and ethylene on JP-8 combustion 103,104 and found that formaldehyde retarded low temperature heat-release, lengthened DOC, decreased the magnitude of heat-release, and enhanced soot formation. On the other hand, ethylene did not have any impact on ignition delay but did contribute to some soot formation.…”

Section: Experimental Investigations Of Kerosene Combustion and Emissions In Dici Enginesmentioning

confidence: 99%

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From fundamental study to practical application of kerosene in compression ignition engines: An experimental and modeling review

Tay

Zhao

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part D:

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The use of kerosene in direct injection compression ignition engines is fundamentally due to the introduction of the Single Fuel Concept. As conventional direct injection compression ignition diesel engines are made specifically to use diesel fuel, the usage of kerosene will affect engine emissions and performance due to differences between the fuel properties of kerosene and diesel. As a result, in order for kerosene to be properly and efficiently used in diesel engines, it is needful for the scientific community to know the properties of kerosene, its autoignition and combustion characteristics, as well as its emissions formation behavior under diesel engine operating conditions. Moreover, it is desirable to know the progress made in the development of suitable kerosene surrogates for engine applications as it is a crucial step toward the development of reliable chemical reaction mechanisms for numerical simulations. Therefore, in this work, a comprehensive review is carried out systematically to better understand the characteristics and behavior of kerosene under direct injection compression ignition engine relevant conditions. In this review work, the fuel properties of kerosene are summarized and discussed. In addition, fundamental autoignition studies of kerosene in shock tube, rapid compression machine, fuel ignition tester, ignition quality tester, constant volume combustion chamber, and engine are compiled and evaluated. Furthermore, experimental studies of kerosene spray and combustion in constant volume combustion chambers are examined. Also, the experimental investigations of kerosene combustion and emissions in direct injection compression ignition engines are discussed. Moreover, the development of kerosene surrogates, their chemical reaction mechanisms, and the modeling of kerosene combustion in direct injection compression ignition engines are summarized and talked about. Finally, recommendations are also given to help researchers focus on the areas which are still severely lacking.

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“…Therefore, in-cylinder composition after NVO with n-C 7 H 16 addition had lower ignitability than under normal conditions. 13,14 These chemical species could maintain the composition to the next compression stroke through cooling with fresh intake air. Figure 8(a) shows the effect of the injection fraction at NVO on cylinder pressure history calculated by Calculation 3.…”

Section: Analysis Of Phenomenon With Intermediate Products By Nvomentioning

confidence: 99%

Controlling combustion with negative valve overlap in a gasoline–diesel dual-fuel compression ignition engine

Kuzuoka

Kondo

Kudo

et al. 2015

International Journal of Engine Research

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Premixed charge compression ignition technology for diesel engines has been attracting increasing interest in recent years because of its ability to reduce nitrogen oxide emissions. At the same time, homogeneous charge compression ignition technology for gasoline engines also has been expected for high thermal efficiency and reduction in nitrogen oxide emissions. However, both methods have common challenges, such as limited part-load operation and ignition timing control. Additionally, under very low load conditions, thermal efficiency decreases due to the difficulty of providing steady combustion. In this study, a dual-fuel method has been applied to control the ignition timing and combustion duration. As a high ignitability fuel, diesel fuel was supplied to the direct injector, and as an inhibitor, gasoline was supplied to the port injector. Under very low load conditions, negative valve overlap and multiple fuel injection were applied. Diesel fuel injected during the negative valve overlap duration oxidised partially in the high-temperature environment with oxygen-contained exhaust gas of the previous cycle. The oxidation reaction of fuel during the main compression stroke was inhibited by the products from these reactions that occurred during negative valve overlap. Thus, it was possible to control the timing of the heat release immediately after top dead centre. As a consequence, high controllability of combustion and high thermal efficiency at low loads were achieved through independent control of the ratio of diesel fuel injected at negative valve overlap and the fractions of the two fuels.

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The Effect of HCHO Addition on Combustion in an Optically Accessible Diesel Engine Fueled with JP-8

Cited by 12 publications

References 24 publications

Combustion phenomenon, performance and emissions of a diesel engine with aviation turbine JP-8 fuel and rapeseed biodiesel blends

Combustion phenomenon, performance and emissions of a diesel engine with aviation turbine JP-8 fuel and rapeseed biodiesel blends

From fundamental study to practical application of kerosene in compression ignition engines: An experimental and modeling review

Controlling combustion with negative valve overlap in a gasoline–diesel dual-fuel compression ignition engine

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