Question 1

You are working at a distillery and management has asked you to evaluate the current

process for blending the whiskey shown below.

a) Comment of the control system and whether this is the best arrangement for the

process. Show your reasoning using the Relative Gain Array approach.

b) Given you are committed to the current control system, what process changes

could help improve control.

50% Ethanol

Pure water

Static mixer

FC

CC

30% Ethanol

@ 160 L/h