particle_dist: Create a particle distribution
Description
Needed as a first step in estimating system efficiency.
Make the data frame that will be used to estimate efficiency of
variously sized aerosol particles' transport through the sampling
system. To create your data, save this data to the global
environment as shown in the examples.
Usage
particle_dist(
AMAD = 5,
log_norm_sd = 2.5,
log_norm_min = 5e-04,
log_norm_max = 100,
discrete_vals = c(1, 5, 10)
)
Value
a data frame containing a lognormally distributed set of
particles and discrete particle sizes
Arguments
- AMAD
default is 5 based on ICRP 66
- log_norm_sd
default is 2.5 based on ICRP 66
- log_norm_min
default is 0.0005 based on ICRP 66
- log_norm_max
default is 100 based on ICRP 66
- discrete_vals
default is c(1, 5, 10)
Details
All inputs are in micron AMAD, meaning:
the aerodynamic diameter of a particle is the diameter of a
standard density (1000 kg/m3) sphere that has the same
gravitational settling velocity as the particle in question.
Examples
Run this codedf <- particle_dist() # default
df <- particle_dist(AMAD = 4.4,
log_norm_sd = 1.8)
head(df)
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