Lesson 5 - Process Instrumentation SAQ
This lesson allows you to test yourself on the material covered in the Process Instrumentation lesson and determine the level to which you have met the learning outcomes.
Suggested Response - Q5
** You have three applications to measure: effluent discharge, the dilution liquor that is being produced in a deaerated liquor producing plant, and the wort leaving wort cooling as it goes into fermentation. You have three flowmeters available at the brewery: a magflow, a paddle turbine meter, and a Coriolis mass flow.
Which flowmeter would you use for each application? Explain the rationale for your choices.
Response:
The Coriolis mass flow should be used for the wort leaving wort cooling as it goes into fermentation. This would give you the density as well as the flowrate. As this is a high value product, this level of accuracy is validated.
The magflow can be used for measuring the dilution liquor. It is not as costly as the mass flow, but its accuracy is sufficient. It is suitable for a hygienic application.
The turbine paddle meter is not suited to a hygienic application and is not as accurate as the other options. As this is not a hygienic application and high accuracy is not critical, it is acceptable to use it to meter the effluent discharge.