Structural Analysis and Optimization of Liquid Nitrogen Fire Monitor Based on FLUENT

DOI

10.2991/eame-18.2018.62How to use a DOI?

Keywords

liquid nitrogen fire monitor; numerical simulation; nozzle

Abstract

The nozzle is the key component to transform the fluid potential energy into kinetic energy. It is of great significance to the operation the fire protection system. A simple two-dimensional structure of the nozzle is developed. The outlet velocity of the nozzle model is calculated according to hydrodynamics theory. The liquid nitrogen jet performance of the nozzle is simulated by using the FLUENT software. The simulation results are consistent with the theoretical calculations. Then the effect of the rectifier tube and the shrinkage angle was studied. The results show that the rectifier tube can increase the liquid nitrogen jet’s velocity. A larger shrinkage angle can get a higher velocity. Finally, it is proved that a local negative pressure can be eliminated by adding transition fillet.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yunxing Hou
AU  - Xiaowei Yang
AU  - Fangyan Ren
AU  - Yanjun Liu
PY  - 2018/06
DA  - 2018/06
TI  - Structural Analysis and Optimization of Liquid Nitrogen Fire Monitor Based on FLUENT
BT  - Proceedings of the 2018 3rd International Conference on Electrical, Automation and Mechanical Engineering (EAME 2018)
PB  - Atlantis Press
SP  - 295
EP  - 299
SN  - 2352-5401
UR  - https://doi.org/10.2991/eame-18.2018.62
DO  - 10.2991/eame-18.2018.62
ID  - Hou2018/06
ER  -