Published November 2019 | Version v1
Journal article

High-pressure dispersion of nanoparticle agglomerates through a continuous aerosol disperser

  • 1. Jiangnan University, Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology (China)
  • 2. China Jiliang University, Zhejiang Provincial Key Laboratory of Flow Measurement Technology (China)

Description

By discharging aerosols from a high-pressure vessel through a nozzle, an improved continuous aerosol dispersion system can disperse nanoparticle agglomerates to almost primary nanoparticle size. The system's high-pressure dispersion was modelled and numerically simulated using the Taylor expansion method of moments. The strong turbulent shear near the nozzle could achieve the same level as the van der Waals force, which is the main mechanism for deagglomerating nanoparticle agglomerates. The change in nanoparticle size was determined to be proportional to the pressure drop between the nozzle inlet and outlet. Nanoparticle breakup was also observed to be affected by the fractional dimension and primary size of particles.

Additional details

Identifiers

Publishing Information

Journal Title
Applied Nanoscience (Heidelberg. Internet)
Journal Volume
9
Journal Issue
8
Journal Page Range
p. 1857-1868
ISSN
2190-5517

INIS

Country of Publication
Germany
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
54075171
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY; S42: ENGINEERING;
Descriptors DEI
AEROSOLS; COMPUTERIZED SIMULATION; MOMENTS METHOD; NANOPARTICLES; NOZZLES; PRESSURE DROP; PRESSURE VESSELS; VAN DER WAALS FORCES
Descriptors DEC
CALCULATION METHODS; COLLOIDS; CONTAINERS; DISPERSIONS; PARTICLES; SIMULATION; SOLS

Optional Information

Copyright
Copyright (c) 2019 King Abdulaziz City for Science and Technology