Design and construction of a test rig for grouping of tiny particles using acoustic combined with flow oscillations

The frequent haze in the south ASEAN region is a serious concern as it causes respiratory problems among vulnerable groups of people in society. Several haze control methods have been examined. The efficient use of pre-filters to improve the life of traditional filters is also studied and an acousti...

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Main Author: Tan, Yu Da
Other Authors: Chua Leok Poh
Format: Final Year Project
Language:English
Published: 2016
Subjects:
Online Access:http://hdl.handle.net/10356/67220
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-672202023-03-04T18:26:21Z Design and construction of a test rig for grouping of tiny particles using acoustic combined with flow oscillations Tan, Yu Da Chua Leok Poh Huang Xiaoyang School of Mechanical and Aerospace Engineering DRNTU::Engineering The frequent haze in the south ASEAN region is a serious concern as it causes respiratory problems among vulnerable groups of people in society. Several haze control methods have been examined. The efficient use of pre-filters to improve the life of traditional filters is also studied and an acoustic method has been identified as a potential alternative. The effects of various agglomeration mechanisms used in the industries are also considered. In this study only monodispersed aerosols behaviour is being simulated by using Styrofoam balls. The ideal standing wave frequency is identified from a low range of frequencies from 100 to 550 Hz. The standing wave frequencies observed from the test rig are different from the calculated values. This might be due to a modified closed end air column design that does not allow for maximum air particle displacement at the acoustic input side. Further studies are required on high frequencies that are above audible range and poly-dispersed aerosols before the acoustic device can be made as a viable alternative to traditional pre-filters. Bachelor of Engineering (Mechanical Engineering) 2016-05-13T01:37:33Z 2016-05-13T01:37:33Z 2016 Final Year Project (FYP) http://hdl.handle.net/10356/67220 en Nanyang Technological University 47 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering
spellingShingle DRNTU::Engineering
Tan, Yu Da
Design and construction of a test rig for grouping of tiny particles using acoustic combined with flow oscillations
description The frequent haze in the south ASEAN region is a serious concern as it causes respiratory problems among vulnerable groups of people in society. Several haze control methods have been examined. The efficient use of pre-filters to improve the life of traditional filters is also studied and an acoustic method has been identified as a potential alternative. The effects of various agglomeration mechanisms used in the industries are also considered. In this study only monodispersed aerosols behaviour is being simulated by using Styrofoam balls. The ideal standing wave frequency is identified from a low range of frequencies from 100 to 550 Hz. The standing wave frequencies observed from the test rig are different from the calculated values. This might be due to a modified closed end air column design that does not allow for maximum air particle displacement at the acoustic input side. Further studies are required on high frequencies that are above audible range and poly-dispersed aerosols before the acoustic device can be made as a viable alternative to traditional pre-filters.
author2 Chua Leok Poh
author_facet Chua Leok Poh
Tan, Yu Da
format Final Year Project
author Tan, Yu Da
author_sort Tan, Yu Da
title Design and construction of a test rig for grouping of tiny particles using acoustic combined with flow oscillations
title_short Design and construction of a test rig for grouping of tiny particles using acoustic combined with flow oscillations
title_full Design and construction of a test rig for grouping of tiny particles using acoustic combined with flow oscillations
title_fullStr Design and construction of a test rig for grouping of tiny particles using acoustic combined with flow oscillations
title_full_unstemmed Design and construction of a test rig for grouping of tiny particles using acoustic combined with flow oscillations
title_sort design and construction of a test rig for grouping of tiny particles using acoustic combined with flow oscillations
publishDate 2016
url http://hdl.handle.net/10356/67220
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