PUPMSI (version 0.1.0)

HalseyMSI: Halsey Moisture Sorption Isotherm

Description

Halsey Isotherm is a 2-parameter model which expresses condensation of multilayers at proportionally large distances from the surface considering the assumption that a molecule's potential energy is inversely proportional to the nth power of its distance from the surface.

Usage

HalseyMSI(WaterAct, AdsorpM, DesorpM)

Arguments

WaterAct

the numerical value of Water Activity, which ranges from 0 to 1.

AdsorpM

the numerical value of the Moisture content of the Adsorption curve, which ranges from 0 to 1.

DesorpM

the numerical value of the Moisture content of the Desorption curve, which ranges from 0 to 1.

Value

the nonlinear regression, parameters, and graphical visualization for the Halsey Moisture Sorption Isotherm model.

References

Halsey, G. (1948) <doi:10.1063/1.1746689> Physical adsorption on non-uniform surfaces. The Journal of Chemical Physics, 16(10), 931-937.

Examples

# NOT RUN {
WaterAct <- c(0.1145,0.2274,0.3265,0.4291,0.6342,0.7385,0.8274,0.9573)
AdsorpM <- c(0.0234, 0.0366, 0.0496, 0.0648, 0.0887, 0.1096, 0.1343, 0.1938)
DesorpM <- c(0.0459, 0.0637, 0.0794, 0.0884, 0.1158, 0.1298,0.1500, 0.1938)
HalseyMSI(WaterAct, AdsorpM, DesorpM)
# }