A detailed insight into acoustic attenuation in a static bed of hydrophilic nanosilica
The commercial utilization of bulk nanosilica is widespread in concrete, rubber and plastics, cosmetics and agriculture-related applications, and the market of this product is projected to exceed USD 5 billion by 2025. In this investigation, the local dynamics of a nanosilica bed, excited with sinus...
Saved in:
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI
2022
|
Online Access: | http://eprints.utm.my/103347/1/AgusArsad2022_ADetailedInsightintoAcousticAttenuation.pdf http://eprints.utm.my/103347/ http://dx.doi.org/10.3390/nano12091509 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my.utm.103347 |
---|---|
record_format |
eprints |
spelling |
my.utm.1033472023-11-01T09:15:19Z http://eprints.utm.my/103347/ A detailed insight into acoustic attenuation in a static bed of hydrophilic nanosilica Ali, Syed Sadiq Arsad, Agus Hossain, Sk. Safdar Mohammad Asif, Mohammad Asif The commercial utilization of bulk nanosilica is widespread in concrete, rubber and plastics, cosmetics and agriculture-related applications, and the market of this product is projected to exceed USD 5 billion by 2025. In this investigation, the local dynamics of a nanosilica bed, excited with sinusoidal acoustic waves of different frequencies, were carefully monitored using sensitive pressure transducers to obtain detailed insights into the effectiveness of sound waves as a means of energy transport inside the bed. The evolution of wave patterns and their frequency and power distributions were examined both in the freeboard and in the static bed. These results were compared with those obtained by using an empty column. The acoustic frequency strongly affected the signal power. The average power of the acoustic signal in the freeboard region was twice higher than that for the empty column, whereas the same (power) ratio decreased to approximately 0.03 inside the bed for 300 Hz. However, at 360 Hz, the power ratio was substantially lower at 0.24 and 0.002 for the freeboard and the granular bed, respectively, thereby indicating tremendous attenuation of acoustic waves in the granular media at all frequencies. MDPI 2022-05-01 Article PeerReviewed application/pdf en http://eprints.utm.my/103347/1/AgusArsad2022_ADetailedInsightintoAcousticAttenuation.pdf Ali, Syed Sadiq and Arsad, Agus and Hossain, Sk. Safdar and Mohammad Asif, Mohammad Asif (2022) A detailed insight into acoustic attenuation in a static bed of hydrophilic nanosilica. Nanomaterials, 12 (9). pp. 1-22. ISSN 2079-4991 http://dx.doi.org/10.3390/nano12091509 DOI:10.3390/nano12091509 |
institution |
Universiti Teknologi Malaysia |
building |
UTM Library |
collection |
Institutional Repository |
continent |
Asia |
country |
Malaysia |
content_provider |
Universiti Teknologi Malaysia |
content_source |
UTM Institutional Repository |
url_provider |
http://eprints.utm.my/ |
language |
English |
description |
The commercial utilization of bulk nanosilica is widespread in concrete, rubber and plastics, cosmetics and agriculture-related applications, and the market of this product is projected to exceed USD 5 billion by 2025. In this investigation, the local dynamics of a nanosilica bed, excited with sinusoidal acoustic waves of different frequencies, were carefully monitored using sensitive pressure transducers to obtain detailed insights into the effectiveness of sound waves as a means of energy transport inside the bed. The evolution of wave patterns and their frequency and power distributions were examined both in the freeboard and in the static bed. These results were compared with those obtained by using an empty column. The acoustic frequency strongly affected the signal power. The average power of the acoustic signal in the freeboard region was twice higher than that for the empty column, whereas the same (power) ratio decreased to approximately 0.03 inside the bed for 300 Hz. However, at 360 Hz, the power ratio was substantially lower at 0.24 and 0.002 for the freeboard and the granular bed, respectively, thereby indicating tremendous attenuation of acoustic waves in the granular media at all frequencies. |
format |
Article |
author |
Ali, Syed Sadiq Arsad, Agus Hossain, Sk. Safdar Mohammad Asif, Mohammad Asif |
spellingShingle |
Ali, Syed Sadiq Arsad, Agus Hossain, Sk. Safdar Mohammad Asif, Mohammad Asif A detailed insight into acoustic attenuation in a static bed of hydrophilic nanosilica |
author_facet |
Ali, Syed Sadiq Arsad, Agus Hossain, Sk. Safdar Mohammad Asif, Mohammad Asif |
author_sort |
Ali, Syed Sadiq |
title |
A detailed insight into acoustic attenuation in a static bed of hydrophilic nanosilica |
title_short |
A detailed insight into acoustic attenuation in a static bed of hydrophilic nanosilica |
title_full |
A detailed insight into acoustic attenuation in a static bed of hydrophilic nanosilica |
title_fullStr |
A detailed insight into acoustic attenuation in a static bed of hydrophilic nanosilica |
title_full_unstemmed |
A detailed insight into acoustic attenuation in a static bed of hydrophilic nanosilica |
title_sort |
detailed insight into acoustic attenuation in a static bed of hydrophilic nanosilica |
publisher |
MDPI |
publishDate |
2022 |
url |
http://eprints.utm.my/103347/1/AgusArsad2022_ADetailedInsightintoAcousticAttenuation.pdf http://eprints.utm.my/103347/ http://dx.doi.org/10.3390/nano12091509 |
_version_ |
1781777682927714304 |
score |
13.18916 |