Acoustic emission monitoring of water boiling on fuel cladding surface at 1 bar and 130 bar
| Autor: | Hee-Sang Shim, Seung Heon Baek, Jung-Gu Kim, Kaige Wu, Deok Hyun Lee, Do Haeng Hur |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Bubble density
Materials science Applied Mathematics Bubble 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Cladding (fiber optics) 01 natural sciences 010305 fluids & plasmas Flow conditions Acoustic emission Boiling 0103 physical sciences Forensic engineering Electrical and Electronic Engineering Composite material 0210 nano-technology Instrumentation Bar (unit) |
| Zdroj: | Measurement. 109:18-26 |
| ISSN: | 0263-2241 |
| Popis: | This paper aimed to observe the acoustic emission (AE) signals of water boiling occurring on fuel cladding surfaces under flow conditions at 325 °C and 130 bar. Visualization test was first performed to identify a correlation between the water boiling phenomenon and AE signals in a transparent glass cell at 1 bar. Based on the correlations obtained at 1 bar, the boiling AE signals were obtained at 325 °C and 130 bar and successfully analyzed through various AE parameters, such as frequency, energy and hit number. Relatively small bubbles were formed at 130 bar, and the bubble density increased with the increase of the internal heater temperature. |
| Databáze: | OpenAIRE |
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