Combustion and Emissions Characteristics of JP-8 Blends and ULSD #2 with Similar CN in a Direct Injection Naturally Aspirated Compression Engine

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

“…It was found that the JP-8 and ULSD with similar CN have highly comparable combustion characteristics in a DI compression ignition engine and CN is the paramount characteristic in comparing these fuels [10]. Bezaire et al [18] compared different methods used for the cetane value measurement of ultra-low sulphur diesel (ULSD), synthetic jet fuel (S-8), military grade jet fuel (JP-8) with trace amounts of additives, and biodiesel blends at different conditions.…”

“…To put this decision in an action [9], in the 2004th, the NATO Pipeline Committee (NPC) adopted the Single Fuel Policy (SFP). ''The Single Fuel Forward Policy'' legislation enacted in the United States mandates that that deployed U.S. military ground vehicles must be operable with aviation fuel (JP-8) [10]. The petroleum-based JP-8 fuel is very similar in specifications to the commercially available Jet A-1 fuel [11].…”

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

“…[120][121][122][123][124][125][126] It should be noted that studies done recently on kerosene combustion were predominantly done using DICI engines. 6,42,53,54,[127][128][129][130][131][132][133][134][135][136] From DICI engine experiments, it was observed that kerosene had a longer ignition delay period than diesel even though kerosene had a lower viscosity and better vaporization characteristic. 6,53,54 Under high EGR rates, the difference between diesel's and kerosene's ignition delay became much more obvious.…”

“…6 On the other hand, for kerosene that had a similar CN as diesel, it was observed that combustion started earlier than diesel due to the higher volatility and evaporation rate of kerosene. 42,133,134,136 It is interesting to note from experiments that even though kerosene and diesel had different densities, volatilities, and viscosities, their combustion characteristics in terms of heat-release and pressure rise were very similar owing to the fact that they had similar CNs and air entrainment characteristics. [133][134][135][136] Moreover, it was observed that under high boost pressures, combustion was significantly affected for fuels with low CN and high volatility such as kerosene.…”

“…42,133,134,136 It is interesting to note from experiments that even though kerosene and diesel had different densities, volatilities, and viscosities, their combustion characteristics in terms of heat-release and pressure rise were very similar owing to the fact that they had similar CNs and air entrainment characteristics. [133][134][135][136] Moreover, it was observed that under high boost pressures, combustion was significantly affected for fuels with low CN and high volatility such as kerosene. On this note, it was concluded that fuel volatility affected the physical delay, while CN affected the chemical delay.…”