Homotopy Continuation Methods

Homotopy or continuation methods are applied to difficult-to-solve columns, and are a simple means of forcing a solution. The MESH equations can be difficult to solve, due either to the nature of the column (many feeds or side products, side strippers, near minimum reflux, etc.) or to the nonidealities of the K values or enthalpies. For three-phase systems, azeo-tropic systems or systems of columns with two or more feed/recycle stream combinations, there may be more than one calculated solution. The method must be forced to reach the desired solution. Homotopy methods begin with a known solution of the column and from there follow a path to the desired solution. The known solution can be at different conditions or with much simpler K value and enthalpy methods and stepped changes are made from there, solving the column equations at each step, until the final solution is reached.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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