International Journal of Mechanical Engineering and Applications

Volume 7, Issue 1, February 2019

  • Numerical Analyses on Liquid-Metal Magnetohydrodynamic Flow in 180°-Turn Channel

    Hiroshige Kumamaru, Naohisa Takagaki

    Issue: Volume 7, Issue 1, February 2019
    Pages: 1-7
    Received: 15 January 2019
    Accepted: 19 February 2019
    Published: 1 March 2019
    Abstract: Numerical calculations have been performed on liquid-metal magnetohydrodynamic (MHD) flow in a 180°-turn (i.e. hairpin-shaped) channel, in order to contribute to design of a fusion reactor blanket. A magnetic field is applied in a direction perpendicular to an inlet channel, a turning channel (turning section) and an outlet channel. The continuity ... Show More
  • Numerical Estimation of Heat Recovery within a Distributed Incinerator Using Water and Hydrocarbons as Working Fluids

    Hikaru Yamashiro, Tomoyasu Yara, Kenji Fukutomi

    Issue: Volume 7, Issue 1, February 2019
    Pages: 8-16
    Received: 7 January 2019
    Accepted: 13 March 2019
    Published: 3 April 2019
    Abstract: The potential of a cogeneration system combined with a small combustion furnace was investigated in this study. The heat transfer between the exhaust gas and working fluid flowing in a spiral tube heat exchanger was estimated numerically and the amount of vapor generated was predicted. The combustion chamber had a 0.49 m3 inside volume with a chimn... Show More
  • Magnetically Levitated Linear Drive with Repulsive Magnetic Guidance

    Markus Raab, Bernd Gundelsweiler, Wolfgang Schinköthe

    Issue: Volume 7, Issue 1, February 2019
    Pages: 17-25
    Received: 15 February 2019
    Accepted: 28 March 2019
    Published: 18 April 2019
    Abstract: Linear direct drives are often used when high performance is required, because of their high dynamic and their good position accuracy. Usually direct drives are used with linear rolling guidance. In clean room and vacuum applications linear rolling guidance cannot be used as particles can be cause problems. In this paper a magnetically levitated li... Show More
  • Modelling of the Nnormobaric and Hyperbaric Facilities Ventilation

    Ryszard Klos

    Issue: Volume 7, Issue 1, February 2019
    Pages: 26-33
    Received: 18 March 2019
    Accepted: 5 May 2019
    Published: 26 May 2019
    Abstract: This paper is the result of many work and research programs. During the execution of the projects, it was proposed a new mathematical model of the process of ventilation of a semi-closed rebreather. Its validation required making a special simulator of gas exchange in the breathing process. Use of the device made experimental validation of the prop... Show More