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Experimental Study on Evaporation and Combustion Characteristics of Fuel Droplet with Carbon Nano-Particles in RCM
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 Title & Authors
Experimental Study on Evaporation and Combustion Characteristics of Fuel Droplet with Carbon Nano-Particles in RCM
Ahn, Hyeongjin; Jyoti, Botchu Vara Siva; Baek, Seung Wook;
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Evaporation and combustion characteristics of fuel droplet with carbon nanoparticle were investigated in a rapid compression machine(RCM). RCM is an experimental equipment to simulate one compression stroke of reciprocating engine. Nitrogen was charged into reaction chamber for evaporation experiment, while oxygen was charged for combustion experiment. N990 carbon black and n-heptane were used to synthesize the carbon nanofluids. Surfactant, span80, was used to make synthesis easier. The droplet pictures were taken using a high speed camera with 500 frames per second. Thermocouple, of which tip is , was used not only to measure transient bulk temperature, but also to suspend the droplet. Reaction chamber temperature was calculated from pressure data. The evaporation rate of nanofluids was improved compared to pure fuel. The ignition delay was promoted due to the nanoparticle, but the burning rate was decreased.
Rapid compression machine (RCM);Carbon nanoparticle;Nanofluids;Evaporation rate;Burning rate;
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