EMPIRICAL VALIDATION OF A GAS-DISTRIBUTION SYSTEM MOISTURE DRYDOWN MODEL

Moisture is the most difficult impurity to remove from gas distributio n systems due to its adsorption and desorption behavior. Several theor etical models have been proposed in an effort to understand moisture b ehavior and to predict the drydown time of gas distribution systems. W e recently developed a model that takes into account the fluid dynamic s of the bulk gas stream and incorporates two drydown regimes: a physi sorbed regime and a chemisorbed regime. This paper compares experiment al drydown data with model simulations of gas distribution systems und er various configurations and conditions. The verified model can be ap plied as an engineering tool for designing a practical system and pred icting the effects of a moisture intrusion into the system.