Transient Analysis of Cryogenic Liquid-Hydrogen Storage Tank with Intermittent Forced Circulation

    Authors

    S. H. Ho;M. M. Rahman

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    J. Thermophys. Heat Transf.

    Keywords

    LARGE EXPERIMENTAL APPARATUS; SYSTEM; Thermodynamics; Engineering, Mechanical

    Abstract

    This paper presents the transient analysis of fluid flow and heat transfer in a zero-boil-off cryogenic storage tank of liquid hydrogen. The system includes a tank with a cylindrical wall and oblate spheroidal top and bottom, a heat pipe located along the symmetric axis of the tank, and an active circulator consisting of a pump-motor assembly and a spray nozzle. Whenever the maximum temperature inside the tank reaches the boiling point under the working pressure in the tank, the pump is activated to create a forced flow at the nozzle to cool down the heated fluid. After a preset interval of 1 h, the pump is shut down and goes on standby until the maximum temperature reaches its threshold again, and then the pump starts a new cycle. The transient simulation allows the visualization of flow-field and temperature distributions, as well as the computation of maximum and mean temperatures of the fluid in various stages of the pump cycle. This information reveals insights into the characteristics of the stored liquid hydrogen and can assist in optimizing the location of temperature sensors, which provide input to the control system.

    Journal Title

    Journal of Thermophysics and Heat Transfer

    Volume

    24

    Issue/Number

    2

    Publication Date

    1-1-2010

    Document Type

    Article

    Language

    English

    First Page

    374

    Last Page

    380

    WOS Identifier

    WOS:000277096200017

    ISSN

    0887-8722

    Share

    COinS