Browsing by Author "Naid, Abdelhamid"

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    Experimental investigation of the influences of different liquid types on acoustic emission energy levels during the bubble formation process
    (Springer, 2017-09-08) Alhashan, Taihiret; Addali, Abdulmajid; Teixeira, Joao Amaral; Naid, Abdelhamid
    Bubble formation phenomena in a two-phase gas/liquid system occur in many industries that involve boiling; such as desalination stations, nuclear reactors, chemical plants, and fluid piping transportation and processes. Bubble formation phenomena cause problems, such as a decrease in equipment efficiency, vibration, noise, and solid surface erosion. Applications of the acoustic emission (AE) technique for monitoring bubble formation and burst stages in boiling processes are marginal in terms of extension in comparison to other applications of the AE technique. The use of the AE technique in this experimental investigation covers the frequency range between 100 and 1000 kHz, showing that the AE sensor can detect acoustic emissions from an occurrence of bubble formation. Statistically, it was found that the best AE parameter indicator for bubble formation was AE-RMS (root mean square).