| Summary: | 碩士 === 淡江大學 === 化學工程學系 === 84 === The fate of two microbial populations competing purely and
simply for a common substrate in nonideal CSTRs, which are
subject to time-invariant external influences, are examined.
The nonideal reactor is modeled as two ideal CSTRs with
interchange. The results for varying degrees of nonideality, i.
e., different values of α and β, are presented in the form of
operating diagrams in the D(dimensionless dilute rate)-zf
(dimensionless feed substrate concentration) plane. It is
found that up to four steady states may exist, but only one of
them is stable, and that whenever it exists, the coexistence
steady state isalways stable. For zf >1, the coexistence steady
state exists in at least one, and at most three ranges of
dilution rate. Effects of α and β on the domain of existence
of the coexistence steady state are discussed.
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