Analysis on a vibration character of a hollow fiber membrane for MBR using a high-speed camera and an accelerometer

Engineering Journal Chiang Mai University

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Main Authors:	Prattakorn Sittisom, Tomoaki Itayama
Language:	English
Published:	Faculty of Engineering, Chiang Mai University 2020
Subjects:	MBR membrane fouling membrane vibration high-speed camera accelerometer
Online Access:	http://researchs.eng.cmu.ac.th/UserFiles/File/Journal/27_1/15.pdf http://cmuir.cmu.ac.th/jspui/handle/6653943832/68603
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Institution:	Chiang Mai University
Language:	English

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spelling	th-cmuir.6653943832-686032020-05-20T04:41:47Z Analysis on a vibration character of a hollow fiber membrane for MBR using a high-speed camera and an accelerometer Prattakorn Sittisom Tomoaki Itayama MBR membrane fouling membrane vibration high-speed camera accelerometer Engineering Journal Chiang Mai University The dynamical character of the membrane vibration, which relates to membrane fouling phenomena in membrane bioreactors (MBRs), had not been well analyzed by the direct measurement for the motion of the hollow fiber membrane (HFM) in the MBR system. In this study, we aimed to develop the membrane vibration measurement method using an accelerometer (ACM) attached on an HFM to apply the measurement in an invisible MBR tank due to high turbidity. A single string HFM of 80cm length with different looseness (0%, 1%, 2% and 3%) was set in a transparent plastic tank, in which turbulence jet flow was induced from a submerged pump, to compare the vibration data using a high-speed camera (HSC) and ACM. Each obtained time series data of the membrane displacement by the HSC was sequentially processed by a low-pass digital filter and a derivative digital filter to obtain each velocity data and each acceleration data. And it was found that the membrane with the larger looseness showed the smaller value in the standard deviation (SD) of acceleration data, which means the average amplitude of acceleration in the random vibration, though the SD of the displacement and that of the velocity was larger. Moreover, the relation between the looseness of the membrane and the SD of the acceleration obtained by the ACM was just the same as the relation obtained by the HSC. Also, both power spectrums of the acceleration in the frequency domain by the ACM and the HSC presented a similar tendency in the relation with the looseness. 2020-05-20T04:41:47Z 2020-05-20T04:41:47Z 2020 Engineering Journal Chiang Mai University 27,1 (Jan-Apr 2020), 187-197 2672-9695 http://researchs.eng.cmu.ac.th/UserFiles/File/Journal/27_1/15.pdf http://cmuir.cmu.ac.th/jspui/handle/6653943832/68603 Eng Faculty of Engineering, Chiang Mai University
institution	Chiang Mai University
building	Chiang Mai University Library
continent	Asia
country	Thailand Thailand
content_provider	Chiang Mai University Library
collection	CMU Intellectual Repository
language	English
topic	MBR membrane fouling membrane vibration high-speed camera accelerometer
spellingShingle	MBR membrane fouling membrane vibration high-speed camera accelerometer Prattakorn Sittisom Tomoaki Itayama Analysis on a vibration character of a hollow fiber membrane for MBR using a high-speed camera and an accelerometer
description	Engineering Journal Chiang Mai University
author	Prattakorn Sittisom Tomoaki Itayama
author_facet	Prattakorn Sittisom Tomoaki Itayama
author_sort	Prattakorn Sittisom
title	Analysis on a vibration character of a hollow fiber membrane for MBR using a high-speed camera and an accelerometer
title_short	Analysis on a vibration character of a hollow fiber membrane for MBR using a high-speed camera and an accelerometer
title_full	Analysis on a vibration character of a hollow fiber membrane for MBR using a high-speed camera and an accelerometer
title_fullStr	Analysis on a vibration character of a hollow fiber membrane for MBR using a high-speed camera and an accelerometer
title_full_unstemmed	Analysis on a vibration character of a hollow fiber membrane for MBR using a high-speed camera and an accelerometer
title_sort	analysis on a vibration character of a hollow fiber membrane for mbr using a high-speed camera and an accelerometer
publisher	Faculty of Engineering, Chiang Mai University
publishDate	2020
url	http://researchs.eng.cmu.ac.th/UserFiles/File/Journal/27_1/15.pdf http://cmuir.cmu.ac.th/jspui/handle/6653943832/68603
_version_	1681752655231188992

Analysis on a vibration character of a hollow fiber membrane for MBR using a high-speed camera and an accelerometer

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