On Practical Gas and Liquid Leakage Diameter Analytic Estimation for Vacuum Applications

Abstract

This paper presents analytical adaptive expressions for the two distinct cases of tank leakage estimations for gas (sonic and subsonic) and liquid flows under specific measurements data that assists to evaluate a circular hole/slit/orifice (crack) diameter and area. The analytic process is performed by equalization between analytic reformulation of the traditional mass flow formulations and the test formulation for mass flow dependent driven pressure differential over time multiplied by volume. In case of uniform environment conditions, the slit diameter might also represent the total sum of numerous exit holes/slits possible existence. Finally, a qualitative agreement was found between literature and current results in the context of orifice diameter versus pressure differential.