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№1 слайд![Particle Size Analysis](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img0.jpg)
Содержание слайда: Particle Size Analysis
№2 слайд![Particle size](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img1.jpg)
Содержание слайда: Particle size
№3 слайд![Particle size from image](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img2.jpg)
Содержание слайда: Particle size from image analysis
№4 слайд![Radius of Gyration](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img3.jpg)
Содержание слайда: Radius of Gyration
№5 слайд![Diameters can vary, exercise](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img4.jpg)
Содержание слайда: Diameters can vary, exercise
№6 слайд![Particle size- equivalent](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img5.jpg)
Содержание слайда: Particle size- equivalent diameters
№7 слайд![More diameters Volume](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img6.jpg)
Содержание слайда: More diameters
Volume diameter – diameter of sphere having same volume
Obtained from Coulter counter techniques
Surface volume diameter – diameter of sphere having same surface to volume ratio
Obtained from permeametry (measuring pressure drop with flow through a packed bed)
Mobility diameter – diameter equal to the diameter of a sphere having the same mobility in an electric field as particle
№8 слайд![](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img7.jpg)
№9 слайд![Concept of fractal dimension](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img8.jpg)
Содержание слайда: Concept of fractal dimension
Aerosol particles which consist of agglomerates of ‘primary particles’, (often, combustion generated) may be described using the concept of fractals.
Fractals - The relationship between radius r (rgyration usually) of aerosol agglomerates, and the volume of primary particles in the agglomerate can be written:
№10 слайд![Fractal dimension](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img9.jpg)
Содержание слайда: Fractal dimension
№11 слайд![Particle Size Con t Particle](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img10.jpg)
Содержание слайда: Particle Size Con’t
Particle concentration – suspensions in air
Particle density – powders
What if particles are not all the same size?
Size distribution – discrete and continuous
Number, volume and mass based distributions
Frequency distributions
Histogram tricks
Single modes – different types of averaging
Moments
№12 слайд![Particle concentration](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img11.jpg)
Содержание слайда: Particle concentration
№13 слайд![Mass and Volume Concentrations](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img12.jpg)
Содержание слайда: Mass and Volume Concentrations
№14 слайд![Particle concentrations -](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img13.jpg)
Содержание слайда: Particle concentrations - powders
№15 слайд![What if we have a mixture of](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img14.jpg)
Содержание слайда: What if we have a mixture of particles of different sizes?
№16 слайд![](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img15.jpg)
№17 слайд![Continuous particle size](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img16.jpg)
Содержание слайда: Continuous particle size distributions
№18 слайд![More continuous size](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img17.jpg)
Содержание слайда: More continuous size distributions
№19 слайд![What do they look like?](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img18.jpg)
Содержание слайда: What do they look like?
№20 слайд![Frequency distributions](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img19.jpg)
Содержание слайда: Frequency distributions
№21 слайд![](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img20.jpg)
№22 слайд![More on size distributions](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img21.jpg)
Содержание слайда: More on size distributions
№23 слайд![Spreadsheet tricks](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img22.jpg)
Содержание слайда: Spreadsheet tricks
№24 слайд![Number, mass, surface area](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img23.jpg)
Содержание слайда: Number, mass, surface area distributions not the same!
№25 слайд![Describing distributions](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img24.jpg)
Содержание слайда: Describing distributions using a single number, a.k.a. what is average?
№26 слайд![Standard shapes of](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img25.jpg)
Содержание слайда: Standard shapes of distributions
№27 слайд![Similarity transformation](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img26.jpg)
Содержание слайда: Similarity transformation
№28 слайд![Self-preserving size](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img27.jpg)
Содержание слайда: Self-preserving size distribution
№29 слайд![Moments of the distribution](/documents_6/9ae46f616dfcb914061dcd9d3b780410/img28.jpg)
Содержание слайда: Moments of the distribution function