Ultrasonic aerosol agglomeration: Manipulation of particle deposition and its impact on air filter pressure drop
Acoustic agglomeration is a technique that leverages on sound waves to promote the collision of aerosol particulate matter, thus leading to the formation of larger particle agglomerates. In this study, this acoustics-driven phenomenon is demonstrated for its usefulness as an aerosol pre-conditioning...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-02-01
|
| Series: | Ultrasonics Sonochemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1350417724000221 |
| _version_ | 1797295198783406080 |
|---|---|
| author | Pengzhan Liu Xin Zhang Guicai Liu Shi Hao Lim Man Pun Wan Grzegorz Lisak Bing Feng Ng |
| author_facet | Pengzhan Liu Xin Zhang Guicai Liu Shi Hao Lim Man Pun Wan Grzegorz Lisak Bing Feng Ng |
| author_sort | Pengzhan Liu |
| collection | DOAJ |
| description | Acoustic agglomeration is a technique that leverages on sound waves to promote the collision of aerosol particulate matter, thus leading to the formation of larger particle agglomerates. In this study, this acoustics-driven phenomenon is demonstrated for its usefulness as an aerosol pre-conditioning method to significantly enhance the efficiency of filtration systems in particle treatment processes. Specifically, favorable changes in pressure drop across the filters are observed as a result of receiving less particle mass, for which filters are shown to be able to have their operational life extended remarkably by more than 50%. The involved ultrasonic aerosol agglomeration mechanisms are unveiled through numerical simulations, and the effects of residence time, sound pressure level, and initial particle number concentration on agglomeration performances are experimentally investigated. In addition, validations and measurements of filter pressure drop are obtained through a series of experiments. This study provides a comprehensive overview to the design and performance characterization of acoustics-agglomeration-enhanced filtration systems, which could potentially derive energy savings for fan power in ventilation systems and be scaled up for applications in industrial plants for reducing carbon emissions. |
| first_indexed | 2024-03-07T21:44:16Z |
| format | Article |
| id | doaj.art-34cf427e6e9046afbf9f75594a794477 |
| institution | Directory Open Access Journal |
| issn | 1350-4177 |
| language | English |
| last_indexed | 2024-03-07T21:44:16Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj.art-34cf427e6e9046afbf9f75594a7944772024-02-26T04:15:20ZengElsevierUltrasonics Sonochemistry1350-41772024-02-01103106774Ultrasonic aerosol agglomeration: Manipulation of particle deposition and its impact on air filter pressure dropPengzhan Liu0Xin Zhang1Guicai Liu2Shi Hao Lim3Man Pun Wan4Grzegorz Lisak5Bing Feng Ng6Energy Research Institute @ NTU, Nanyang Technological University, Singapore 639141, Singapore; School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, SingaporeEnergy Research Institute @ NTU, Nanyang Technological University, Singapore 639141, SingaporeResidues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore 637141, SingaporeEnergy Research Institute @ NTU, Nanyang Technological University, Singapore 639141, SingaporeSchool of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, SingaporeResidues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, SingaporeSchool of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore; Corresponding author.Acoustic agglomeration is a technique that leverages on sound waves to promote the collision of aerosol particulate matter, thus leading to the formation of larger particle agglomerates. In this study, this acoustics-driven phenomenon is demonstrated for its usefulness as an aerosol pre-conditioning method to significantly enhance the efficiency of filtration systems in particle treatment processes. Specifically, favorable changes in pressure drop across the filters are observed as a result of receiving less particle mass, for which filters are shown to be able to have their operational life extended remarkably by more than 50%. The involved ultrasonic aerosol agglomeration mechanisms are unveiled through numerical simulations, and the effects of residence time, sound pressure level, and initial particle number concentration on agglomeration performances are experimentally investigated. In addition, validations and measurements of filter pressure drop are obtained through a series of experiments. This study provides a comprehensive overview to the design and performance characterization of acoustics-agglomeration-enhanced filtration systems, which could potentially derive energy savings for fan power in ventilation systems and be scaled up for applications in industrial plants for reducing carbon emissions.http://www.sciencedirect.com/science/article/pii/S1350417724000221UltrasoundManipulationAgglomerationAerosolFiltrationPressure drop |
| spellingShingle | Pengzhan Liu Xin Zhang Guicai Liu Shi Hao Lim Man Pun Wan Grzegorz Lisak Bing Feng Ng Ultrasonic aerosol agglomeration: Manipulation of particle deposition and its impact on air filter pressure drop Ultrasonics Sonochemistry Ultrasound Manipulation Agglomeration Aerosol Filtration Pressure drop |
| title | Ultrasonic aerosol agglomeration: Manipulation of particle deposition and its impact on air filter pressure drop |
| title_full | Ultrasonic aerosol agglomeration: Manipulation of particle deposition and its impact on air filter pressure drop |
| title_fullStr | Ultrasonic aerosol agglomeration: Manipulation of particle deposition and its impact on air filter pressure drop |
| title_full_unstemmed | Ultrasonic aerosol agglomeration: Manipulation of particle deposition and its impact on air filter pressure drop |
| title_short | Ultrasonic aerosol agglomeration: Manipulation of particle deposition and its impact on air filter pressure drop |
| title_sort | ultrasonic aerosol agglomeration manipulation of particle deposition and its impact on air filter pressure drop |
| topic | Ultrasound Manipulation Agglomeration Aerosol Filtration Pressure drop |
| url | http://www.sciencedirect.com/science/article/pii/S1350417724000221 |
| work_keys_str_mv | AT pengzhanliu ultrasonicaerosolagglomerationmanipulationofparticledepositionanditsimpactonairfilterpressuredrop AT xinzhang ultrasonicaerosolagglomerationmanipulationofparticledepositionanditsimpactonairfilterpressuredrop AT guicailiu ultrasonicaerosolagglomerationmanipulationofparticledepositionanditsimpactonairfilterpressuredrop AT shihaolim ultrasonicaerosolagglomerationmanipulationofparticledepositionanditsimpactonairfilterpressuredrop AT manpunwan ultrasonicaerosolagglomerationmanipulationofparticledepositionanditsimpactonairfilterpressuredrop AT grzegorzlisak ultrasonicaerosolagglomerationmanipulationofparticledepositionanditsimpactonairfilterpressuredrop AT bingfengng ultrasonicaerosolagglomerationmanipulationofparticledepositionanditsimpactonairfilterpressuredrop |