BE’s of Non-Flow Systems

Abstract

This is the first of a series of four chapters on BE’s It deals with non-flow systems. In practical terms one can think of a non-flow system as a piston-in-cylinder system with inlets and outlets. The intensive properties of the system are time-dependent and place-independent. Transport of matter into or from the system is in general not gradientless. In deriving equations we use mole and mass balances and the FBE’s [U] and [S]. Column-2 PR’s are included to express physical equilibrium within the system. In this chapter column-3 equations are obtained by inserting ideal-gas PR’s.