36kHz 초음파 반응기에서의 원주파수 및 파생주파수의 음압 분포 분석The Analysis of Acoustic Emission Spectra in a 36 kHz Sonoreactor
- Other Titles
- The Analysis of Acoustic Emission Spectra in a 36 kHz Sonoreactor
- Authors
- 손영규
- Issue Date
- 2016
- Publisher
- 한국지하수토양환경학회
- Keywords
- Acoustic emission spectra; Sound pressure; Fundamental frequency; Harmonics; Subharmonics; Sonochemical reactions
- Citation
- 지하수토양환경, v.21, no.6, pp.128 - 134
- Journal Title
- 지하수토양환경
- Volume
- 21
- Number
- 6
- Start Page
- 128
- End Page
- 134
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/1234
- ISSN
- 1598-6438
- Abstract
- Acoustic emission spectra was analyzed to investigate the distribution of sound pressure in a 36 kHz sonoreactor. The sound pressure of fundamental frequency (f: 36 kHz), harmonics (2f: 72 kHz, 3f: 108 kHz, 4f: 144 kHz, 5f: 180 kHz, 6f: 216 kHz), and subharmonics (1.5f: 54 kHz, 2.5f: 90 kHz, 3.5f: 126 kHz, 4.5f: 162 kHz, 5.5f: 198 kHz, 6.5f; 234 kHz) was measured at every 5 cm from the ultrasonic transducer using a hydrophone and a spectrum analyzer. It was revealed that the input power of ultrasound, the application of mechanical mixing, and the concentration of SDS affected the sound pressure distributions of the fundamental frequency and total detected frequencies frequencies significantly. Moreover a linear relationship was found between the average total sound pressure and the degree of sonochemical oxidation while there was no significant linear relationship between the average sound pressure of fundamental frequency and the degree of sonochemical oxidation.
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Collections - Department of Environmental Engineering > 1. Journal Articles
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