Deagglomeration of nanoparticle clusters in a “cavitation on chip” device
Due to the potential of significant energy release in cavitating flows, early cavitation inception and intensification of cavitating flows are of great importance. To use this potential, we investigated the deagglomeration of nanoparticle clusters with the implementation of hydrodynamic cavitation i...
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2020-11-01
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Online Access: | http://dx.doi.org/10.1063/5.0029070 |
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doaj-3550135fabbe4b628337fe8abf7bdaa22020-12-04T12:45:21ZengAIP Publishing LLCAIP Advances2158-32262020-11-011011115204115204-910.1063/5.0029070Deagglomeration of nanoparticle clusters in a “cavitation on chip” deviceMoein Talebian Gevari0Soroush Niazi1Mehrdad Karimzadehkhouei2Kursat Sendur3M. Pinar Menguc4Morteza Ghorbani5Ali Koşar6Sabanci University Nanotechnology Research and Application Center, Tuzla, 34956 Istanbul, TurkeySabanci University Nanotechnology Research and Application Center, Tuzla, 34956 Istanbul, TurkeyDepartment of Mechanical Engineering, Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, TurkeyFaculty of Engineering and Natural Sciences, Sabanci University, Tuzla, 34956 Istanbul, TurkeyCenter for Energy, Environment and Economy, Ozyegin University, Istanbul 34794, TurkeySabanci University Nanotechnology Research and Application Center, Tuzla, 34956 Istanbul, TurkeySabanci University Nanotechnology Research and Application Center, Tuzla, 34956 Istanbul, TurkeyDue to the potential of significant energy release in cavitating flows, early cavitation inception and intensification of cavitating flows are of great importance. To use this potential, we investigated the deagglomeration of nanoparticle clusters with the implementation of hydrodynamic cavitation in a microfluidic device. For this purpose, a microfluidic device with a micro-orifice geometry was designed and fabricated using standard microfabrication processes. The system was tested with distilled water in the assembled experimental setup. The flow patterns were characterized using the cavitation number and inlet pressure. Titania nanoparticles were utilized to prepare nanoparticle suspensions. The suspensions were heated to allow agglomeration of nanoparticles. The system was operated with the new working fluid (nanoparticle clusters) at different inlet pressures. After characterizing flow patterns, the flow patterns were compared with those of pure water. The deagglomeration effects of hydrodynamic cavitation on nanoparticle clusters showed the possibility to apply this method for the stabilization of nanoparticles, which paves way to the implementation of nanoparticle suspensions to thermal fluid systems for increased energy efficiency as well as to drug delivery. Our results also indicate that the presence of nanoparticles in the working fluid enhanced cavitation intensity due to the increase in the number of heterogeneous nucleation sites.http://dx.doi.org/10.1063/5.0029070 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Moein Talebian Gevari Soroush Niazi Mehrdad Karimzadehkhouei Kursat Sendur M. Pinar Menguc Morteza Ghorbani Ali Koşar |
spellingShingle |
Moein Talebian Gevari Soroush Niazi Mehrdad Karimzadehkhouei Kursat Sendur M. Pinar Menguc Morteza Ghorbani Ali Koşar Deagglomeration of nanoparticle clusters in a “cavitation on chip” device AIP Advances |
author_facet |
Moein Talebian Gevari Soroush Niazi Mehrdad Karimzadehkhouei Kursat Sendur M. Pinar Menguc Morteza Ghorbani Ali Koşar |
author_sort |
Moein Talebian Gevari |
title |
Deagglomeration of nanoparticle clusters in a “cavitation on chip” device |
title_short |
Deagglomeration of nanoparticle clusters in a “cavitation on chip” device |
title_full |
Deagglomeration of nanoparticle clusters in a “cavitation on chip” device |
title_fullStr |
Deagglomeration of nanoparticle clusters in a “cavitation on chip” device |
title_full_unstemmed |
Deagglomeration of nanoparticle clusters in a “cavitation on chip” device |
title_sort |
deagglomeration of nanoparticle clusters in a “cavitation on chip” device |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2020-11-01 |
description |
Due to the potential of significant energy release in cavitating flows, early cavitation inception and intensification of cavitating flows are of great importance. To use this potential, we investigated the deagglomeration of nanoparticle clusters with the implementation of hydrodynamic cavitation in a microfluidic device. For this purpose, a microfluidic device with a micro-orifice geometry was designed and fabricated using standard microfabrication processes. The system was tested with distilled water in the assembled experimental setup. The flow patterns were characterized using the cavitation number and inlet pressure. Titania nanoparticles were utilized to prepare nanoparticle suspensions. The suspensions were heated to allow agglomeration of nanoparticles. The system was operated with the new working fluid (nanoparticle clusters) at different inlet pressures. After characterizing flow patterns, the flow patterns were compared with those of pure water. The deagglomeration effects of hydrodynamic cavitation on nanoparticle clusters showed the possibility to apply this method for the stabilization of nanoparticles, which paves way to the implementation of nanoparticle suspensions to thermal fluid systems for increased energy efficiency as well as to drug delivery. Our results also indicate that the presence of nanoparticles in the working fluid enhanced cavitation intensity due to the increase in the number of heterogeneous nucleation sites. |
url |
http://dx.doi.org/10.1063/5.0029070 |
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