S Rr

T = temperature t = time

V = vapour molar internal flow rate v = liquid molar volume

Vol = volume of the stage

V = cumulative vapour production, moles W = moles of material left in the still x = liquid molar fraction y = vapour molar fraction

Superscripts

L, V = liquid and vapour phases

Subscripts z = derivative with respect to z b = evaluate at point b

Greek alphabet

A£ = vector of time-finite element lengths 6 = Lagrange polynomial approximation for the control variables X = Lagrange multipliers for the differential equality constraints v = Lagrange multipliers for the inequality constraints at final conditions $ = Lagrange polynomial approximation for the state variables $ = objective function

Y = term of the objective function evaluated at final conditions

See also: II/Distillation: Historical Development; Instrumentation and Control Systems; Theory of Distillation.

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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