FNc 2PH

Saturated vapour leaving the stage with equilibrium mole fraction y and molar enthalpy hv (7", x)

Liquid entering the stage (xL ln, hLjn)

T

P

y

Perfect mixing in each phase

Liquid phase

Vapour entering the stage (Kv. .A, J Saturated liquid leaving the stage with equilibrium mole fraction x and enthalpy hL{T, x}

Figure 1 Equilibrium-stage concept.

If the pressure (P) and Nc — 1 liquid compositions or For ideal mixtures that satisfy Raoult's law we have: mole fractions (x) are used as degree of freedom, then the mole fractions (y) in the vapour phase and the temperature (T) are determined, provided that two phases are present. The general VLE relation can then be written:

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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