Identifying bubble occurrence during pool boiling employing acoustic emission technique

被引：23

作者：

Alhashan, Taihiret ^{[1
]}

Addali, Abdulmajid ^{[1
]}

Teixeira, Joao Amaral ^{[1
]}

Elhashan, Said ^{[2
]}

机构：

[1] Cranfield Univ, Sch Energy, Cranfield MK43 0AL, Beds, England

[2] Higher Inst Mech Engn, Tripoli, Libya

来源：

APPLIED ACOUSTICS | 2018年 / 132卷

关键词：

Pool boiling; Bubble formation; Acoustic emission; INCIPIENT CAVITATION; WATER; BEARING; SURFACE; VALVE;

D O I：

10.1016/j.apacoust.2017.11.006

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper reports the results of a study for the early detection of bubble formation during the boiling process using acoustic emission. The feasibility of using AE technology to detect and monitor early bubble formation during pool boiling is assessed, and the results show that AE technology is an affective tool for this purpose. There is a clear correlation between the AE signal levels and height of the water level above the heated surface during the boiling process. The different types of heated fluid influence AE energy levels during the bubble formation process. Statistically, it was found that the best AE parameters to indicate bubble formation were AE-RMS, AE-Energy and AE-Amplitude.

引用

页码：191 / 201

页数：11

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