LEAKY: A Computer Program for Estimating the Distribution of Moisture and Other Gases in Permeable Containers

摘要

Many system and component designs involve closure with elastomeric seals. These materials may be significantly permeable to moisture and other gases over extended storage periods required of new designs. The computer program described here can be used by designers to quickly estimate the permeation of gases into and out of containers and internal pressure changes as a function of time. The required moisture capacity of internal desiccant to offset permeation through seals can be estimated. The program output tabulates the amount of gas taken up by internal absorptive materials and the internal partial pressure of a gas as function of time. The gases are assumed to be ideal. Derivation of the equations used are presented as are program listings and sample output. (ERA citation 07:050948)