Schubert convergence method
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Hello everyone, when using the PetroFrac module, there is an option called “teff-method” in the “Advanced” window of the module; it is used to select the convergence method for thermal efficiency calculations. There are two convergence methods here: Newton and Schubert. Are there any situations where each of these is applicable separately? Or can we alternate between these two, as long as convergence is achieved? (In a vacuum distillation model, using the Newton method for the vacuum tower leads to non-convergence; switching to the Schubert method resolves this issue.) ）
The setting of key parameters for the refining module is crucial