Can we control the climate?

Science says we must; engineering shows us how it could be done.

Climate MN

Probably the most important rule of process control is, "The better we understand a process, the better we can control it.” While my process control experience is mostly industrial, during the past decade, I gradually got involved with some non-industrial precesses, and found the same principles also apply to their control. In other words, the dynamic characteristics of non-industrial processes can also be described by dead times, time constants, capacities, gains, interactions, etc., and these values must be determined to control them. In recent columns, I've written about cyber terrorism, artificial intelligence, control of self-driving cars and international trade.

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Resources

State of Technology: Flow measurement

cgsot 1705 DS EGThe latest flow measurement trends, technology and implementations are detailed in this new ebook from the editors of Control. Download it here.

Our latest issue: May 2017

May Cover EGSafety takes top billing in the May issue of Control, as we explore how proponents of safety efforts are making progress in the face of denial and indifference from the industry at large.  Read the issue.

Voices: Ask The Experts

How can we connect a F&G system?

We're seeking a suitable way to monitor a fire and gas system without running cables.

Q: A petrochemical plant has a PLC-based fire and gas (F&G) system with monitoring in the control room. We need to add monitoring at the fire station. Cabling between three stations (two control rooms and one fire station) and using mimic panels is not possible because of many barriers. I’m…

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Most Recent

  • Leadership for human factors

    To address safety issues by improving human factors, Julian Annison, principal industry consultant at Emerson Automation Solutions says it's vital for leaders to challenge their teams in three primary areas: • Authority gradient—Review it and ask, is anyone on a pedestal and why? Who's driving…

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  • Can we control the climate?

    By Béla Lipták

    Probably the most important rule of process control is, "The better we understand a process, the better we can control it.” While my process control experience is mostly industrial, during the past decade, I gradually got involved with some non-industrial precesses, and found the same principles…

    Full Story
  • IEC 61511 second edition updates

    Several important changes were made to IEC 61511, Parts 1, 2 and 3, second edition, "Functional safety—safety instrumented systems for the process industry sector," issued last year. The U.S. uses a modified, nearly identical version, ANSI/ISA 84—Parts 1, 2 and 3 (61511 modified), which is…

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  • 2017 State of Technology: Flow measurement

    The latest flow measurement trends, technology and implementations are detailed in this new ebook from the editors of Control. Topics covered include: When and how to use pulse width modulation of controller outputs Getting the most out of valve positioners Maximum rangeability of linear valves…

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  • Why the bus is Smurfed

    By John Rezabek

    The neighboring plant became an early adopter of fieldbus when they chose the technology for an upgrade from primarily older pneumatic controls to a modern microprocessor-based DCS. In the early years of this century, choosing fieldbus meant limiting the field of potential suppliers to a smaller…

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  • Take control of condition information

    By Michael Harmata

    As budgets get tighter and experienced personnel become harder to come by, organizations worldwide are looking for novel ways to optimize their machinery health management. At Hexion, we’re no different. Because we operate sites around the globe, often in remote locations, we’ve quickly become…

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