超音波照射下で調製した水/軽油および水/軽油/植物油エマルション燃料の物理的性質および燃焼特性 Physical Properties and Combustion Characteristics of Emulsion Fuels of Water/Diesel Fuel and Water/Diesel Fuel/Vegetable Oil Prepared by Ultrasonication

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Author(s)

    • 今津 浩貴 IMAZU Hiroki
    • 名古屋大学大学院工学研究科化学・生物工学専攻分子化学工学分野 Dept. of Chemical Engineering, Graduation School of Engineering, Nagoya University

Abstract

超音波照射による界面活性剤(2 vol%)添加系W/Oエマルション燃料の調製について,ホーン型超音波発振器を用いて検討を行った。水(10 vol%)/軽油エマルション燃料に対して,エマルション安定度に及ぼす超音波発振器のホーン設置位置の影響を調べたところ,安定度が設置位置に大きく依存した。最適なホーン位置で超音波照射した際のエマルション安定度,粘度の経時変化を軽油/水(5 vol%)の条件で調べたところ,両方とも10分間照射時間とともに増加した後,一定値に達した。また,水(5 vol%)/軽油および水(5 vol%)/軽油/植物油(5 vol%)系についてエマルション液滴径分布の超音波照射時間依存性を調べたところ,両方とも相違はほとんどなく,最終的には約0.3 μm一定の平均液滴径を有したエマルション燃料が調製できた。調製したエマルション燃料の燃焼特性を調べたところ,軽油および軽油/大豆油燃料と比較して,すす,NOおよびNO<sub><i>x</i></sub>の生成抑制が確認された。

Ultrasonic preparation of two-phase water-in-oil (W/O) emulsion fuel was carried out using an ultrasonic apparatus with a rod horn. The effect of the position of the horn tip emitting ultrasound into the sample mixture on emulsion stability was investigated for water (10 vol%)/diesel fuel/surfactant (2 vol%) mixtures. In addition, the effects of ultrasonication time and vegetable oil addition on viscosity, water droplet size and combustion characteristics of the emulsion fuels prepared by ultrasonic treatment were studied for water (5 vol%)/diesel fuel/surfactant (2 vol%) and water (5 vol%)/diesel fuel/vegetable oil (5 vol%)/surfactant (2 vol%) mixtures. The stability of the emulsion fuel significantly depended on the tip position of the ultrasonic horn immersed in the mixture. Both the stability and viscosity of the emulsion increased with sonication time for the first 10 min and then remained constant. The water droplets in the emulsions of water/diesel fuel/surfactant and water/diesel fuel/vegetable oil/surfactant were extremely fine and median diameter of the droplets was about 0.3 μm. The water content in the W/O emulsion fuels was significant in the reduction in soot, NO and NO<sub><i>x</i></sub> during combustion.

Journal

  • Journal of the Japan Petroleum Institute

    Journal of the Japan Petroleum Institute 56(1), 52-57, 2013-01-01

    The Japan Petroleum Institute

References:  18

  • <no title>

    BALAT M.

    Energy Conv. Mgmt. 49, 2727, 2008

    Cited by (1)

  • <no title>

    MITTELBACH M.

    Biofuel 79, 2009

    Cited by (1)

  • <no title>

    GEDANKEN A.

    Ultrason. Sonochem. 11(2), 47, 2004

    Cited by (1)

  • <no title>

    KOJIMA Y.

    Ultrason. Sonochem. 12(5), 359, 2005

    Cited by (1)

  • <no title>

    KOJIMA Y.

    Ultrason. Sonochem. 8(2), 81, 2001

    Cited by (1)

  • <no title>

    CUBILLANA-AGUILERA L. M.

    Ultrason. Sonochem. 18(3), 789, 2011

    Cited by (1)

  • <no title>

    WU J.

    J. Ac. Soc. Am. 101(3), 1899, 1997

    Cited by (1)

  • <no title>

    LAUTERBORN W.

    Ultrason. Sonochem. 4(2), 65, 1997

    Cited by (1)

  • <no title>

    TEZEL A.

    Biophys. J. 85, 3502, 2003

    Cited by (1)

  • <no title>

    WOLLOCH L.

    J. Control Release 148, 204, 2010

    Cited by (1)

  • <no title>

    LIN C. Y.

    Fuel 85, 593, 2006

    Cited by (1)

  • <no title>

    LIN C. Y.

    Fuel Process. Technol. 87, 309, 2006

    Cited by (1)

  • <no title>

    ABISMAIL B.

    Ultrason. Sonochem. 6(1-2), 75, 2001

    Cited by (1)

  • <no title>

    WU P.

    J. Am. Oil Chem. Soc. 84, 877, 2007

    Cited by (1)

  • <no title>

    LIN C. Y.

    Fuel 87, 2154, 2008

    Cited by (1)

  • <no title>

    LI Y.

    Energy & Fuels 24, 1987, 2010

    Cited by (1)

  • <no title>

    STAVARACHE C.

    Ultrason. Sonochem. 12(5), 367, 2005

    Cited by (1)

  • <no title>

    STAVARACHE C.

    Ultrason. Sonochem. 13(5), 401, 2006

    Cited by (1)

Codes

  • NII Article ID (NAID)
    10031166884
  • NII NACSIS-CAT ID (NCID)
    AA11590615
  • Text Lang
    ENG
  • Article Type
    NOT
  • ISSN
    13468804
  • NDL Article ID
    024188366
  • NDL Call No.
    Z17-177
  • Data Source
    CJP  NDL  J-STAGE 
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