Cryogenic fuel management on the precooled turbo jet engine

Masamitsu Watanabe, Hitomi Iizuka, Takato Goto, Ayumu Hirayama, Tetsuya Satou, Hiroaki Kobayashi, Hideyuki Taguchi, Kenya Harada

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Japan Aerospace Exploration Agency (JAXA) is currently developing the pre-cooled turbo jet engine (PCTJ) for hypersonic flight. This engine features air pre-cooling using liquid hydrogen fuel in advance of the compression. The cryogenic hydrogen fuel changes drastically in density when it evaporates while passing the fuel tubing at the engine start-up. Presently, the inadequacy of the physical property data of two-phase hydrogen flow pertaining to evaporation hinders the construction of the fuel flow simulator required in establishing high accuracy fuel flow control. In the present study, a device for the void fraction measurement is developed, that is a key parameter of the characteristics of the two-phase flow. It uses the difference of the electric permittivity between the liquid and gas. Validation tests comparing with the optical method were conducted by oil/air, nitrogen and hydrogen. The electrical heater produces various evaporation modes such as bubbly flow, slug flow and churn flow. The void fraction meter could successfully acquire the physical property even in a cryogenic condition. We also measured the heat transfer coefficient of the cryogenic two phase flow. The data of the nitrogen flow arranged by well-known Lockhart-Martinelli parameter shows the agreement with the analytical value.

    Original languageEnglish
    Title of host publication62nd International Astronautical Congress 2011, IAC 2011
    Pages6660-6667
    Number of pages8
    Volume8
    Publication statusPublished - 2011
    Event62nd International Astronautical Congress 2011, IAC 2011 - Cape Town
    Duration: 2011 Oct 32011 Oct 7

    Other

    Other62nd International Astronautical Congress 2011, IAC 2011
    CityCape Town
    Period11/10/311/10/7

    Fingerprint

    Jet engines
    Cryogenics
    Hydrogen fuels
    Void fraction
    Two phase flow
    Evaporation
    Physical properties
    Engines
    Nitrogen
    Hydrogen
    Hypersonic aerodynamics
    Liquid fuels
    Tubing
    Air
    Flow control
    Heat transfer coefficients
    Compaction
    Permittivity
    Simulators
    Cooling

    ASJC Scopus subject areas

    • Aerospace Engineering

    Cite this

    Watanabe, M., Iizuka, H., Goto, T., Hirayama, A., Satou, T., Kobayashi, H., ... Harada, K. (2011). Cryogenic fuel management on the precooled turbo jet engine. In 62nd International Astronautical Congress 2011, IAC 2011 (Vol. 8, pp. 6660-6667)

    Cryogenic fuel management on the precooled turbo jet engine. / Watanabe, Masamitsu; Iizuka, Hitomi; Goto, Takato; Hirayama, Ayumu; Satou, Tetsuya; Kobayashi, Hiroaki; Taguchi, Hideyuki; Harada, Kenya.

    62nd International Astronautical Congress 2011, IAC 2011. Vol. 8 2011. p. 6660-6667.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Watanabe, M, Iizuka, H, Goto, T, Hirayama, A, Satou, T, Kobayashi, H, Taguchi, H & Harada, K 2011, Cryogenic fuel management on the precooled turbo jet engine. in 62nd International Astronautical Congress 2011, IAC 2011. vol. 8, pp. 6660-6667, 62nd International Astronautical Congress 2011, IAC 2011, Cape Town, 11/10/3.
    Watanabe M, Iizuka H, Goto T, Hirayama A, Satou T, Kobayashi H et al. Cryogenic fuel management on the precooled turbo jet engine. In 62nd International Astronautical Congress 2011, IAC 2011. Vol. 8. 2011. p. 6660-6667
    Watanabe, Masamitsu ; Iizuka, Hitomi ; Goto, Takato ; Hirayama, Ayumu ; Satou, Tetsuya ; Kobayashi, Hiroaki ; Taguchi, Hideyuki ; Harada, Kenya. / Cryogenic fuel management on the precooled turbo jet engine. 62nd International Astronautical Congress 2011, IAC 2011. Vol. 8 2011. pp. 6660-6667
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