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Effect of nano air-bubbles mixed into gas oil on common-rail diesel engine

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  • Nakatake, Yasuhito
  • Kisu, Shintaro
  • Shigyo, Kenta
  • Eguchi, Toshihiko
  • Watanabe, Takashi

Abstract

The nano air-bubbles mixed into gas oil are used for the energy saving and environmental load reduction of diesel engine. The nano air-bubbles were mixed into the fuel line continually by a super miniature ejector-type mixer (outer diameter: 20 mm, length: 34 mm) which can make nano and micro sizes. After the micro air-bubbles were separated with the nano air-bubbles in a mixing tank, diesel engine performance test with a common-rail injection system was experimented. The results showed that 3% reduction in break means specific fuel consumption, 1% rise in charging efficiency and a slight reduction in the density of exhaust smoke etc. These were caused by mixing the nano air-bubbles into gas oil. It is confirmed that the nano air-bubbles had advanced and activated combustion by a physical and chemical action.

Suggested Citation

  • Nakatake, Yasuhito & Kisu, Shintaro & Shigyo, Kenta & Eguchi, Toshihiko & Watanabe, Takashi, 2013. "Effect of nano air-bubbles mixed into gas oil on common-rail diesel engine," Energy, Elsevier, vol. 59(C), pages 233-239.
    • Handle: RePEc:eee:energy:v:59:y:2013:i:c:p:233-239
    DOI: 10.1016/j.energy.2013.06.065
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    References listed on IDEAS

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    1. Kannan, G.R. & Anand, R., 2011. "Experimental investigation on diesel engine with diestrol–water micro emulsions," Energy, Elsevier, vol. 36(3), pages 1680-1687.
    2. Rakopoulos, Dimitrios C. & Rakopoulos, Constantine D. & Giakoumis, Evangelos G. & Dimaratos, Athanasios M., 2012. "Characteristics of performance and emissions in high-speed direct injection diesel engine fueled with diethyl ether/diesel fuel blends," Energy, Elsevier, vol. 43(1), pages 214-224.
    3. Lee, Wen-Jhy & Liu, Yi-Cheng & Mwangi, Francis Kimani & Chen, Wei-Hsin & Lin, Sheng-Lun & Fukushima, Yasuhiro & Liao, Chao-Ning & Wang, Lin-Chi, 2011. "Assessment of energy performance and air pollutant emissions in a diesel engine generator fueled with water-containing ethanol–biodiesel–diesel blend of fuels," Energy, Elsevier, vol. 36(9), pages 5591-5599.
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    Cited by:

    1. Kazuhiro Yamamoto & Yusei Akai & Naoki Hayashi, 2022. "Numerical Simulation of Spray Combustion with Ultrafine Oxygen Bubbles," Energies, MDPI, vol. 15(22), pages 1-15, November.
    2. Nakatake, Yasuhito & Yamashita, Hirofumi & Tanaka, Hiroshi & Goto, Hidechika & Suzuki, Takashi, 2020. "Reduction of fuel consumption of a small-scale gas turbine engine with fine bubble fuel," Energy, Elsevier, vol. 194(C).

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