HalseyMSI: Halsey Moisture Sorption Isotherm

In PUPMSI: Moisture Sorption Isotherm Modeling Program

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.

Author(s)

Benz L. Rivera

John Carlo F. Panganiban

Kim M. Villacorte

Chester C. Deocaris

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

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)

PUPMSI documentation built on May 31, 2022, 5:05 p.m.