SAE Technical Paper Series 2000
DOI: 10.4271/2000-01-1805
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Effects of Injection Changes on Efficiency and Emissions of a Diesel Engine Fueled by Direct Injection of Natural Gas

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Cited by 24 publications
(19 citation statements)
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“…The Westport HPDITM system replaces over 90% of diesel (by energy content) with natural gas. Due to the cleaner combustion of natural gas, NOx reductions of 40-50%, PM reductions of approximately 80%, GHG reductions of 20-25%, with the same or better thermal efficiency, and similar engine power and torque have been verified (Dumitrescu 2000). The technology is growing rapidly in regions such as Australia…”
Section: Gas Needle Solenoid Actuatormentioning
confidence: 99%
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“…The Westport HPDITM system replaces over 90% of diesel (by energy content) with natural gas. Due to the cleaner combustion of natural gas, NOx reductions of 40-50%, PM reductions of approximately 80%, GHG reductions of 20-25%, with the same or better thermal efficiency, and similar engine power and torque have been verified (Dumitrescu 2000). The technology is growing rapidly in regions such as Australia…”
Section: Gas Needle Solenoid Actuatormentioning
confidence: 99%
“…1987;Alla et al 2000). The primary benefit of dual-fueling is replacement of much of the diesel fuel with cleaner and more abundant fuels, such as natural gas, while maintaining diesel-like efficiency with low emissions (Douville et al 1998;Dumitrescu et at. 2000;Harrington et at.…”
Section: Dual-fuel Compression Ignition Enginesmentioning
confidence: 99%
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“…An increased flame temperature of the methane/ethane fuel under lean conditions might contribute to increased NOx emissions, as suggested by Sullivan et al [31,32]. [10]. It should be noted that this result again differs from that reported previously by Sullivan et al [31,32] for pure methane, although it should also be noted that Sullivan and co-workers suggested that the influence of P;/P° on NOx emissions might have been masked by the run-to-run variability in their experiments.…”
Section: Ignition Delaymentioning
confidence: 89%
“…For a directinjection natural gas engine, knowledge of the ignition and combustion processes occurring inside the combustion chamber is critical for optimizing engine design and perfecting control strategies. Although significant progress has been made recently in this regard, both experimentally [4][5][6][7][8][9][10][11][12] and through computer simulation studies [13][14][15], considerable work remains to establish fundamental relationships between operating parameters and engine performance and emissions for this class of engines.…”
Section: Introductionmentioning
confidence: 99%