Category Archive: Metrics

May
19

Monitoring Process Performance Online

Process efficiency measurements involve the measurement of process flows and utility or raw material flows. The energy efficiency depends upon the utility temperatures and heat transfer coefficient. The raw material efficiency depends upon feed concentrations and the desirable reaction rate to product and the undesirable reaction rate to a byproduct. For simply changing a stream’s …

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Apr
28

Identifying Equipment Performance Problems

Plants often consist of many production units and trains of equipment. The production units may produce raw materials as intermediates in a series of processes that lead to predominant product. Often intermediates or byproducts are also sold. Trains of equipment feed into a common tank that may feed other trains of equipment. Recycle streams further …

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Mar
17

Master of Space and Time

The lack of space and time kills process control innovations. The lack of space for new cables, I/O card, and new sensors and the time required for the implementation does more than just slow down implementation, space and time prevents the genesis of new ideas. As I was giving a talk to the American Institute …

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Dec
23

XY Plots for Operations and Process Analysis

Process visualization and interaction for operations are about to enter the 21st century after being stuck in the 1980s. Emerson and major companies in the process industries and universities through organizations such as the Center for Operator Performance are doing research on how to increase the effectiveness of operators to match the increased capability of …

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Dec
06

Roundtable Presentation – Life Science Industry Forum

The Food and Drug Administration issued the guideline “Guidance for Industry, PAT — A Framework for Innovative Pharmaceutical Development, Manufacturing, and Quality Assurance” in September, 2004. The objective of this guidance was to “describe a regulatory framework (Process Analytical Technology, PAT) that will encourage the voluntary development and implementation of innovative pharmaceutical development, manufacturing, and …

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Nov
04

Batch Process Analytics – update –

Over the last three years the DeltaV future architecture team has worked closely with Lubrizol to develop and install a beta version of Emerson’s on-line batch analytics. At Emerson Exchange 2010 the Lubrizol Corp. represented by Robert Wojewodka, Technology Manager, Process Improvement Team Leader, accepted the 2010 PlantWeb Excellence Award for exceptional application of PlantWeb …

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Oct
28

Use of Data Analytics in Pharmaceutical Manufacturing

Earlier this year I had the pleasure of speaking at a conference on FDA and PAT for Pharma Manufacturing, FDA-Partnering with Industry. This 2-day conference was co-sponsored by the FDA and the University Of Rhode Island College Of Pharmacy. The primary object of this conference was to “Disseminate current and accurate information on Process Analytical …

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Oct
15

ISA Automation Week 2010 – The Most Important Week in my Career

ISA automation week was a success in terms of technical content. The renewed emphasis on technical presentations particularly in automation and control rejuvenated my interest in the International Society of Automation. I moderated a panel discussion on loop tuning. Harold Wade setup the ISA simulator for the following cases that were designed by me to …

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Oct
13

Review of Deminar #10 – Dead Time Compensator Myth Buster

To view the recording of Deminar #10, click on the above picture. If you want to just view the slides click on Deminar #10 – PID Deadtime Compensation The results of some of the tests in Deminar #10 even surprised me even though I had explored and documented some of the unusual features of deadtime …

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Jul
12

Wireless Online Process Metrics

It is hard to imagine that in this day and age we are relying on “after the fact” process performance analysis on a gross scale. I wonder if we still use spreadsheets and costs sheets to judge a process unit and operator performance. We can see differences in setpoints at a shift change but have …

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