Particle Size Distributions following Condensational Growth in Continuous Flow Aerosol Reactors as Derived from Residence Time Distributions: Theoretical Development and Application to Secondary Organic Aerosol

2012 ◽  
Vol 46 (8) ◽  
pp. 937-949 ◽  
Author(s):  
Mikinori Kuwata ◽  
Scot T. Martin
Keyword(s):  
Particle Size ◽  
Residence Time ◽  
Continuous Flow ◽  
Organic Aerosol ◽  
Theoretical Development ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Aerosol Reactors ◽  
Residence Time Distributions ◽  
Condensational Growth

Evaluation of a Reverse Oscillatory Flow Microreactor Design for the Synthesis of Uniformly-Sized Nanoparticles

2011 ◽  
Author(s):  
Daniel A. Peterson ◽  
Anna E. Garrison ◽  
Brian K. Paul
Keyword(s):  
Residence Time ◽  
Oscillatory Flow ◽  
Mixing Time ◽  
Mixing Times ◽  
Size Distributions ◽  
Flow Conditions ◽  
Particle Size Distributions ◽  
Advective Flow ◽  
Flow Microreactor ◽  
Residence Time Distributions

Computational fluid dynamics is used to refine the operating parameters of a Reverse Oscillatory Flow (ROF) microreaction system for the synthesis of uniformly-sized nanoparticles. The ROF mixing system uses highly advective flow regions to achieve high quality mixing over short mixing lengths. The mixing system is further enhanced by sinusoidal inlet flow conditions which create plugs having reduced diffusional lengths. Flow conditions leading to plug creation were found to be chiefly responsible for shorter mixing times. Residence time distributions (of simulated inert particles) were found to decrease with increasing pump displacement. It is expected that these conditions will lead to smaller particle size distributions. Mixing quality and residence time distribution are not captured well by Reynolds or Strouhal numbers; however the maximum inlet Reynolds number does correlate well with mixing time trends. Implications for flow conditions are discussed.

254. A Comparison of the Particle Size Distributions for Aerosols Generated During Wet Grinding and Dry Deburring of Beryllium

1999 ◽  
Author(s):  
K.K. Ellis ◽  
R. Buchan ◽  
M. Hoover ◽  
J. Martyny ◽  
B. Bucher-Bartleson ◽  
...  
Keyword(s):  
Particle Size ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Wet Grinding

Measurements of Mineral Particle Size Distributions by a Buoyancy Weighing Method

2010 ◽  
Vol 126 (10/11) ◽  
pp. 577-582 ◽  
Author(s):  
Katsuhiko FURUKAWA ◽  
Yuichi OHIRA ◽  
Eiji OBATA ◽  
Yutaka YOSHIDA
Keyword(s):  
Particle Size ◽  
Mineral Particle ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Weighing Method
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