Condensation of vapor using sound pressure oscillation signals

TANG Jiguo; YAN Changqi; SUN Licheng; LI Ya; WANG Kaiyuan

doi:10.11949/j.issn.0438-1157.20150080

您当前的位置：

首页 >

文章列表页 >

Condensation of vapor using sound pressure oscillation signals

更新时间：2025-11-26

- Condensation of vapor using sound pressure oscillation signals
- CIESC Journal Vol. 66, Issue 7, Pages: 2442-2449(2015)
- 作者机构：
  
  1. 哈尔滨工程大学核安全与仿真技术国防重点学科实验室,黑龙江,哈尔滨,150001
  2. 四川大学水利水电学院, 水力学与山区河流开发保护国家重点实验室,四川,成都,610207
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150080
  CLC： K124
- Online First：05 July 2015，
  
  Published：05 July 2015
- 稿件说明：
移动端阅览
TANG Jiguo, YAN Changqi, SUN Licheng, et al. Condensation of vapor using sound pressure oscillation signals[J]. CIESC Journal, 2015, 66(7): 2442-2449.
DOI：

TANG Jiguo, YAN Changqi, SUN Licheng, et al. Condensation of vapor using sound pressure oscillation signals[J]. CIESC Journal, 2015, 66(7): 2442-2449. DOI： 10.11949/j.issn.0438-1157.20150080.

摘要

利用高速摄像仪和水声换能器研究蒸汽凝结时的声压波动信号和凝结区域的转变。结果表明

随过冷度和蒸汽流量升高分别出现3个不同的凝结区域——体积波动区、过渡区和毛细波区。此外

观察到两种分别对应气泡分裂和破碎的声压波动波形。声压波动信号的峰度存在阶跃变化

且阶跃处与凝结区域转变的阈值接近。幅度谱的低频区域存在频率在150~300 Hz的峰值

其可能是由蒸汽体积周期性变化引入。在过渡区和毛细波区发现频率高于7000 Hz的峰值

其可能是由气泡突然破碎引入的局部压力高频振荡造成的。蒸汽气泡破碎频率随过冷度和蒸汽流量增加而增加

且与幅度谱中首峰频率接近

误差在±20%以内。

Abstract

Signals of sound pressure oscillations during vapor condensation and transition of condensation regimes were investigated using a high-speed video camera and a hydrophone. Results indicate three different condensation regimes with the increase of subcooling and vapor injection rates

which are referred to as bubble oscillation regime

transition regime and capillary wave regime. In addition

two waveforms occur in the detected signals

of which sources are vapor bubble split-up and collapse. The kurtosis of the signals presents step changes

which is close to the transformation threshold of condensation regimes. The peak at frequency of 150—300 Hz appears in spectra in all condensation regimes

which may be resulted from the periodic variation in vapor volume. The peaks with frequency higher than 7000 Hz appear only in transition and capillary wave regimes and may be the resultant of the high-frequency oscillation in pressure caused by sudden collapse of vapor bubbles. The bubble collapse frequency increases with the increase of subcooling and vapor injection rates and is close to the frequency of the first peak in spectra with an error within ±20%.

关键词

Keywords

references

Views

187

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Condensation process and heat transfer of vapor bubbles in ultrasonic field

Synergistic heat transfer enhancement characteristics due to electric field and macro-structured surface during thin film boiling

Film condensation heat transfer characteristics of R1234ze(E) on a horizontal three-dimensional finned tube

Experimental study on performance of new type of pulsating heat pipe for battery cooling

Experimental study on enhancement of flow boiling through degassing with copper foam

Related Author

HE Changqiu

TIAN Jiameng

CHEN Yiqi

ZHU Yuchen

LIU Xin

WANG Hai

WANG Zhentao

WANG Junfeng

Related Institution

School of Energy and Power Engineering, Jiangsu University

School of Energy and Power Engineering, Chongqing University

State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University

Institute of Building Energy, Dalian University of Technology

School of Energy and Power Engineering, Shandong University

⁰