Packed Columns

Several approaches exist for the design of packed columns. These are based on the concepts of number of transfer units (NTU), height of transfer units (HTU) and height equivalent to a theoretical plate (HETP). The last of these concepts is the most widely used.

Since methods for the design of staged distillation columns are well developed, a common approach is to calculate the number of trays N using such approaches and then to find the height of the packed column, h, by the relation:

liquid that would be in equilibrium with the outlet composition of the liquid.

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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