2v 2ee

Figure 4 Combination of adsorption and vaporization. Layer thickness, 0.01 cm; velocity constant kv = 0.0235 cm2 s~1; porosity of the dry layer, 0.75.

Curve 1 Adsorption speed v' = 2x 10~5cm s~1, vaporization speed v = 0. The particles are filled at A (st=0.40). The total porosity is 0.30 at C, 0.20 at D and 0.10 at E.

Curve 2 v' = 0, st = 0.4, v = 0, eqn [21] is applied.

Curve 4v' = 6 x 10~6 cm s~1, v = 0. The particles are filled at B (st= 0.40). The porosity is 0.30 at F.

Curve 6 v' = 0, v= 1 x 10~5cm s~1. (Reprinted with permission from Guiochon G and Siouffi A (1978) Journal of Chromatographic Science 16: 598-609.)

When v' = 0 eqn [27] is valid as eT,0/eT,t = 1. When v = 0, eqn [33] is obtained. Integration yields

Figure 4 displays the general case when both adsorption and (or) vaporization can occur.

In every case when the development is kept short there is no marked deviation from the quadratic law. A very curious situation arises when v' = 2v as then exact compensation of adsorption is made by vaporization.

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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