Min An

TL;DR: In this paper, the authors investigated the collision behavior of fluidized solid particles on the wall of a brittle graphite heat exchange tube of a fluidized bed evaporator for a better fundamental investigation on vibration risk assessment and heat transfer process enhancement.

TL;DR: In this article, the vibration acceleration signals of a brittle graphite heat transfer tube were measured by means of accelerometer sensors and datum acquisition systems at varied steam pressure, solid holdup, particle diameter and axial position to investigate the vibration characteristics of the tube induced by an internal vapor-liquid-solid boiling flow.

TL;DR: In this article, the multi-value phenomenon of correlation dimension and its relationship with multi-scale flow behavior were investigated based on the chaotic analyses of the vibration acceleration signals as well as pressure drop signals measured from a single graphite tube in the vapor-liquid-solid fluidized bed evaporator.

TL;DR: In this paper, a straight graphite tube with an internal vapor-liquid-solid flow was derived and discussed for vibration analysis when the tube was fixed at both ends, and a model of mixed phase flow was used to deal with fluid parameters.

TL;DR: In this article, a fluidized bed graphite tube with an internal vapor-liquid-solid flow boiling in the tube was established and the signals of vibration acceleration of the tube were measured.