- The basic
equation for the model is:
|
 |
|
t = breakthrough time (min)
t
=
50% contaminant breakthrough time (min)
k' = rate constant (min-1)
P = probability of
contaminant breakthrough. |
- The value of
t is determined from experimental
data.
The value of k' has been shown to be
related to
t by the following formula:
|
|
|
k = proportionality constant that is constant
independent of concentration and varies only slightly with humidity. |
- The value of
t is related to the contaminant concentration by
the equation:
|
|
|
K", a = constants that can be derived from
experimental data. They vary with humidity, but for humidities ≤ 50% they are essentially constant.
CI = contaminant assault
concentration. (ppm)
|
- It is possible to determine the constants k, K", and a from a minimum of 3 experimental
data points. However, the inclusion of additional data points increases the accuracy of
the model.
|
|
How
does it compare with experimental results? See the
comparison.
|
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