Transient Analysis of Cryogenic Liquid-Hydrogen Storage Tank with Intermittent Forced Circulation
Abbreviated Journal Title
J. Thermophys. Heat Transf.
LARGE EXPERIMENTAL APPARATUS; SYSTEM; Thermodynamics; Engineering, Mechanical
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 of Thermophysics and Heat Transfer
"Transient Analysis of Cryogenic Liquid-Hydrogen Storage Tank with Intermittent Forced Circulation" (2010). Faculty Bibliography 2010s. 251.