Open AccessExperimental and Simulation Study on the Pool Fire of Low Pressure Atomizing Nozzle
Author(s) -
Jian Chen,
E. Fan
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1600/1/012006
Subject(s) - nozzle , bubble , mechanics , fluent , spray characteristics , spray nozzle , mixing (physics) , materials science , combustion , viscosity , mechanical engineering , nuclear engineering , computer simulation , chemistry , engineering , physics , composite material , organic chemistry , quantum mechanics
Bubble atomization technology, originated in the 1990s, has the advantages of simple structure, good atomization effect, low influence of liquid viscosity on atomization effect and low energy consumption. At present, it is widely used in the fields of combustion, spraying and fire fighting. In order to further expand the application field of bubble atomization, the possibility of applying bubble atomization to cooling and cooling is studied in this paper. In this paper, six types of bubble atomization nozzles with different structures are designed and a special experimental platform is built to measure the data of six types of nozzle. The flow characteristics, droplet size distribution, droplet velocity distribution and other parameters of six kinds of bubble atomizing nozzles were studied, and the experimental results were compared and analyzed. On this basis, Fluent simulation software was used in this paper to simulate the gas-liquid two-phase distribution, velocity distribution and spray velocity distribution at the nozzle outlet of the mixing chamber structure, so as to supplement and verify the experimental results. Different nozzle structures have great influence on the atomization effect of the bubble atomization nozzle. This conclusion will play a certain role in the design of the bubble atomization nozzle in the future.