Development of a Transient Hydrogen Jet in a High-Swirl Constant Volume Chamber

  • Takeyuki Kamimoto
  • Takayoshi Kohama
  • Hidemi Seki
  • Yoshitaka Yamamoto
  • Yasuo Moriyoshi
Conference paper


When hydrogen is used in large size diesel engines, the direct-injection combustion regime appears most desirable for its low fuel consumption properties. In applying hydrogen as an alternative to diesel fuel, the behavior of hydrogen jets in swirling air needs to be clarified to provide design procedures for engine designers. This paper is intended to investigate the development of transient hydrogen jets in high-swirl flow fields achieved in a constant volume vessel by means of precise measurement of injection amount and imaging of developing jets. The result showed that when the pressure ratio of injection pressure to the back pressure is higher than the critical pressure ratio, the injection amount remained constant due to the flow choking at the nozzle exit, while jet tip penetration varied depending on the pressure ratio. The variation of jet penetration was elucidated qualitatively by the quasi-steady jet theory. The behavior of transient hydrogen jets in swirling air fields was imaged successfully at a swirl speed of 12000 rpm by a newly developed imaging technique denoted as “ Oil mist scattering technique” The result obtained showed that the motion of hydrogen jets is significantly interacted by the swirl flow depending on the swirl intensity and the ambient air density. It was also revealed that the swirl can prohibit hydrogen jets from contacting the chamber walls, which is effective in reducing the heat loss from burning hydrogen jets to the chamber walls.


Injection Pressure Chamber Wall Swirl Flow Ti02 Particle Diesel Spray 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Furuhama S (1997) Problems of forecasting the future of advanced engines and engine characteristics of the hydrogen injection with EH z tank and pump. Journal of Engineering for Gas Turbines and Power 1997–01: vol 119: pp 227–242.CrossRefGoogle Scholar
  2. 2.
    Ikegami M, Miwa K and Shioji M (1982) A study of hydrogen fueled compression ignition engines. Int. J. Hydrogen Energy: vol 7 No. 4: pp 341–353.CrossRefGoogle Scholar
  3. 3.
    Jorach R and Prescher K (1994) Development of a low-NO, truck hydrogen engine with high specific power output. Proceeding of the 10th World Hydrogen Energy Conference: pp 1857–1865.Google Scholar
  4. 4.
    Keller J and Lutz A (2000) Hydrogen fueled engines in hybrid vehicles. SAE paper 2000–01–0546.Google Scholar
  5. 5.
    Kosaka H and Kamimoto T (1997) Velocity vector distribution in an evaporating transient spray. Proceeding of the 13,h Annual Conference on Liquid Atomization and Spray Systems, pp 125–131.Google Scholar
  6. 6.
    Mantzaras J, Felton P. G. and Bracco F. V. (1988) Three-dimensional visualization of premixed-charge engine flames: Islands of Reactants and Products; Fractal Dimensions; and Homogeneity. SAE paper No. 881635.Google Scholar
  7. 7.
    Naber J. D. and Siebers D. L. (1998) Hydrogen combustion under diesel engine conditions. Int. J. Hydrogen Energy: vol 23 No 5: pp 363–371.CrossRefGoogle Scholar
  8. 8.
    Rottengruber H, Wiebicke U, Woschni G and Zeilinger K (1998) Investigation of a direct injecting diesel-engine. Proceedings of World Hydrogen Conference XII: pp 1515–1535.Google Scholar
  9. 9.
    Shioji M and Inoue N (1998) Performance and NO formation in a hydrogen premixed-charge engine. Proceedings of World Hydrogen Conference XII: pp 1469–1478.Google Scholar
  10. 10.
    Shudo T, Nakajima Y and Futakuchi T (1999) Analysis of thermal efficiency in a hydrogen premixed spark ignition engine. Proceedings of the ASME: vol 39: pp 351–354.Google Scholar
  11. 11.
    Shudo T, Nabetani S and Nakajima Y (2000) Analysis of the degree of constant volume and cooling loss in a spark ignition engine fuelled with hydrogen. International Journal of Engine Research: vol 2: No 1: pp 81–92.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Takeyuki Kamimoto
    • 1
  • Takayoshi Kohama
    • 1
  • Hidemi Seki
    • 1
  • Yoshitaka Yamamoto
    • 1
  • Yasuo Moriyoshi
    • 2
  1. 1.Tokai UniversityHiratsuka-shi, KanagawaJapan
  2. 2.Chiba UniversityChiba-shi, ChibaJapan

Personalised recommendations