Exhaust Emissions From a 6.5L Diesel Engine Using Synthetic Fuel and Low-Sulfur Diesel Fuel

Frame, Edwin A; Blanks, Matthew G.

doi:10.21236/ada426513

Cited by 1 publication

(1 citation statement)

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“…Recently, a study was experimental methodology. The discussion of results conducted by Frame et al [5] to investigate the use regarding the performance trends and their relationof a synthetic jet fuel in a medium-duty diesel ship with fuel properties and combustion features is engine, with a particular focus on studying the wear next. Detailed analysis of heat release rates provides in the pump due to lower lubricity of the fuel, rather recommendations for tailoring the fuel injection than the calibration itself.…”

Section: Introductionmentioning

confidence: 99%

Impact of military JP-8 fuel on heavy-duty diesel engine performance and emissions

McKee

Fernandes

Fuschetto

et al. 2007

Proceedings of the Institution of Mechanical Engineers, Part D:

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Investigating the impact of jet fuel on diesel engine performance and emissions is very important for military vehicles, due to the US Army Single Fuel Forward Policy mandating that deployed vehicles must refuel with aviation fuel JP-8. There is a known torque and fuel economy penalty associated with the operation of a diesel engine with JP-8 fuel, due to its lower density and viscosity. On the other hand, a few experimental studies have suggested that kerosene-based fuels have the potential for lowering exhaust emissions, especially particulate matter, compared to diesel fuel #2 (DF-2). However, studies so far have typically focused on quantifying the effects of simply replacing the regular DF-2 with JP-8, rather than fully investigating the reasons behind the observed differences. This research evaluates the effect of using JP-8 fuel in a heavy-duty diesel engine on fuel injection, combustion, performance, and emissions, and subsequently utilizes the obtained insight to propose changes to the engine calibration to mitigate the impact of the trade-offs. Experiments were carried out on a Detroit Diesel Corporation (DDC) S60 engine outfitted with exhaust gas recirculation (EGR). The results indicate that torque and fuel economy of diesel fuel can be matched, without smoke or NO x penalty, by increasing the duration of injection to compensate for the lower fuel density. The lower cetane number of JP-8 caused an increased ignition delay and increased premixed combustion, and their cumulative effect led to relatively unchanged combustion phasing. Under almost all conditions, JP-8 led to lower NO x and particulate matter (PM) emissions and shifted the NO x-PM trade-off favourably.

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Section: Introductionmentioning

confidence: 99%