Hot surface ignition of a wall-impinging fuel spray: Modeling and analysis using large-eddy simulation
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Mohaddes, Danyal (ORCID:0000000196357183)↗
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Results for “IGNITION”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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On the application of principal component transport for compression ignition of lean fuel/air mixtures under engine relevant conditions
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Jung, Ki Sung (ORCID:0000000343561353)↗
Laser induced spark ignition of a gaseous methane–oxygen model rocket combustor
Not provided.
Energy & Fuels↗
Spark knock: A source for particulate matter emissions from gasoline spark ignited engines
Not Available
Han, Taehoon (ORCID:0000000320305891)↗
Sensor selection and controller design method with application to turbocharged stoichiometric spark-ignited engine controls with low pressure EGR
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Zhang, Xu (ORCID:0000000181824092)↗
Ignition thresholds and initiation of pyrolysis from high flux exposures
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Brown, Alexander L.↗
Ignition delay times of very-low-vapor-pressure biodiesel surrogates behind reflected shock waves
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biofuels (including algae and biomass), hydrogen a↗
Effects of blending a heavy alcohol (C20H40O with diesel in a heavy-duty compression-ignition engine
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Ramírez, A. I.↗
Improved skeletal reduction on multiple gasoline-ethanol surrogates using a Jacobian-aided DRGEP approach under gasoline compression ignition (GCI) engine conditions
Not Available
Chen, Yulin (ORCID:0000000185140309)↗
Impact of ethanol blending on particulate emissions from a spark-ignition direct-injection engine
Not Available
42 ENGINEERING↗
Single-fuel reactivity controlled compression ignition through catalytic partial oxidation reformation of diesel fuel
A single-fuel RCCI concept has been proposed to avoid the need for a secondary fuel system required for conventional RCCI by generating the secondary fuel from the primary fuel through catalytic partial oxidation (CPOX) reformation. In conventional RCCI, gasoline or natural gas can be used as the low-reactivity fuel, and diesel can be used as the high-reactivity fuel. In this study, two reformate mixtures generated by reforming diesel fuel at different operating conditions were used as the low-reactivity fuel, with the parent diesel as the high reactivity fuel. The combustion characteristics of reformate-diesel RCCI were compared with the conventional RCCI. A CFD model was also developed and validated against the experimental results. The model was then used to validate a necessary approximation of the reformate mixture's species concentrations. Compared to conventional RCCI fuel pairs, reformate-diesel RCCI shows marginally better thermal efficiency, approximately 10% better THC emissions, approximately 50% lower NOx emissions, and good controllability. Because the reformate mixture has a high concentration of diluents it displaces a large fraction of intake air and acts similarly to EGR. The combustion behavior of reformate-diesel RCCI is in between that of gasoline-diesel and natural gas-diesel conventional RCCI. From the results, it can be concluded that reformate-diesel RCCI is not overly sensitive to the reformation process itself and the exact species concentrations in the reformate mixture. Finally, a small change in the start of injection of diesel, blend ratio, and EGR fraction can be used to compensate for reformate mixture concentration differences.
33 ADVANCED PROPULSION SYSTEMS↗