Experimental study on characteristics of flashing jet released from superheated liquid tank

doi:10.16265/j.cnki.issn1003-3033.2019.10.018

Abstract

Abstract: Experiments were conducted to investigate the two-phase release of superheated liquid with high temperature and high pressure after accidental releases based on the two-phase release experiment system. The characteristics of flashing jets during the release under different storage and release conditions such as storage pressure, superheat, and nozzle diameterwere studied by high-speed camera and PDA. Results show that the spray angle of flashing jet gradually increases first, then remains stable, and suddenly expands and decreases rapidly when superheated liquid is released completely. Droplets three-dimensional velocities increases with the increase of storage pressure, superheat and nozzle diameter, while droplets diameter decreases with the increase of superheat and nozzle diameter but increases with the increase of storage pressure.

Key words: superheated liquid, high temperature and high pressure, two-phase release, flashing jet, phase Doppler anemometry (PDA)

CLC Number:

X937

ZHU Xueliang, SONG Zeyang, PAN Xuhai, WANG Xilin, WANG Tao, JIANG Juncheng. Experimental study on characteristics of flashing jet released from superheated liquid tank[J]. China Safety Science Journal, 2019, 29(10): 117-123.

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