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Gregory K. McMillan
Gregory K. McMillan retired as a Senior Fellow from Solutia Inc in 2002 and as a senior principal software engineer from Emerson Process Systems and Solutions Simulation R&D in 2023. Greg is an ISA Fellow and the author of more than 200 articles and papers, 100 Q&A posts, 80 blogs, 200 columns, and 20 books. He was one of the first inductees into the Control Process Automation Hall of Fame in 2001, and he received the ISA Lifetime Achievement Award in 2010, the ISA Mentor Award in 2020, and the ISA Standards Achievement Award in 2023.
270 Results Found
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How to Achieve Tight Process Recirculation Temperature Control
How to eliminate oscillations associated with the discontinuity and changes in phase between heating and cooling and make the response of the secondary temperature loop faster.By: Gregory K. McMillan29 July, 2015 | 5 minutes -
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How to Make Transitions Between Cooling and Heating Smooth and Fast
How eliminate oscillations associated with the discontinuity and changes in phase between heating and cooling and make the response of the secondary temperature loop faster.By: Gregory K. McMillan15 July, 2015 | 6 minutes -
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How to Optimize Cascade Control Systems in Vessel Heating and Cooling
How to make sure the cascade control system is intelligently designed to meet process requirements in terms of vessel and heat transfer surface temperaturesBy: Gregory K. McMillan24 June, 2015 | 7 minutes -
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What are the Critical Aspects of Jacket and Coil Design in Vessel Heating and Cooling?
Critical aspects of the design of the jacket and coil in vessel heating and cooling.By: Gregory K. McMillan17 June, 2015 | 6 minutes -
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Simple Strategies for Maximizing Biopharmaceutical Product Quality
Use of key PID features, tuning objectives and feedforward control can meet the stringent requirements for biopharmaceutical production.By: Gregory K. McMillan27 May, 2015 | 5 minutes -
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Simple Strategies for Optimizing Ethanol Plants
PID controllers for front-end production rate, slurry concentration & average fermentation time can decrease costs and increase production rates for ethanol plants.By: Gregory K. McMillan13 May, 2015 | 7 minutes -
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Optimizing Multiphase Reactors with a Single Phase Product
Multiphase reactors offer an inherent ability to optimize excess reactant concentration by the proper use of a simple pressure or temperature control loop.By: Gregory K. McMillan22 April, 2015 | 4 minutes -
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Getting the Most Out of Fluidized Bed Reactors
The fast kinetics and composition response of a fluidized bed reactor enable the direct manipulation of reactant feed rate by temperature control to inherently maximize production rate to the coolantBy: Gregory K. McMillan13 April, 2015 | 5 minutes -
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Maximizing Production Rate of Single Phase Liquid Reactors
Control schemes for maximizing production rate in liquid reactorsBy: Gregory K. McMillan18 March, 2015 | 5 minutes -
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Achieving Tight Control of Single Phase Liquid Reactors
How to set up control loops for liquid reactors to achieve their full potential.By: Gregory K. McMillan09 March, 2015 | 6 minutes -
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Temperature Sensor Installation for Best Response and Accuracy
Best practices to get the most out of the inherent capability of a temperature sensor.By: Gregory K. McMillan16 February, 2015 | 6 minutes -
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Temperature Communication for Best Accuracy and Reliability, and Least Noise
How the advent of smart transmitters and wireless communication has opened the door to better temperature communication & process performance improvements.By: Gregory K. McMillan04 February, 2015 | 7 minutes -
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What are the Inherent Differences in the Performance of Pure Batch, Fed-Batch and Continuous Reactors?
A look at the differences between pure batch versus fed-batch versus continuous reactors.By: Gregory K. McMillan19 January, 2015 | 5 minutes -
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An Overview of the Control Loops for Batch, Fed-Batch and Continuous Reactors
A look at how many of the loops can be the same and how all reactors benefit from a more extensive application of feedback control.By: Gregory K. McMillan12 January, 2015 | 3 minutes -
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What are the Implications of Industrial Reactor Type on Control?
The effect of reactor type on dynamic response, allowable measurement lags and delays, controller tuning, and control strategies is significant.By: Gregory K. McMillan22 December, 2014 | 8 minutes -
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How to Obtain Concentration Measurements from Common Inline Sensors
To control the concentration of key components, relatively inexpensive inline measurements can be used under the right conditions to provide concentration measurementsBy: Gregory K. McMillan08 December, 2014 | 4 minutes -
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Inferential Measurement of Cell and Crystal Growth Rate and Reaction Rate
Simple online inferential measurements of cell growth rate, crystal growth rate, and chemical reaction rate are possible using conventional online measurements of flow and temperature.By: Gregory K. McMillan24 November, 2014 | 5 minutes -
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Automation Project and Startup Humor – How to Laugh Rather Than Fret
Automation Project and Startup Humor – How to Laugh Rather Than FretBy: Gregory K. McMillan07 November, 2014 | 3 minutes -
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Have You Had a Good Automation Industry Laugh Today?
Humor can provide insights by opening the mind to the strange but true aspects of the industrial automation profession. Successful humor can cause a smile before you realize the full nature of the sitBy: Gregory K. McMillan20 October, 2014 | 2 minutes -
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How to Select the Optimal Temperature Sensor for Industrial Applications
How to Select the Optimal Temperature Sensor for Industrial ApplicationsBy: Gregory K. McMillan08 September, 2014 | 3 minutes
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