Articles

101-120 of 135 < first | | | last >
  • Better Design Is No Pipe Dream

    The benefits of using pipeline simulation tools at the piping and instrumentation diagram (P&ID) level, rather than running simulations just on the process flow diagram, can often be overlooked.

    Mike Spear, editor at large
    07/17/2006
  • Distillation control and optimization, Part 1

    Control columnist Bela Liptak describes the distillation process and PID-based controls, reviews optimization strategies, and shows how advanced controls can cut operating costs of distillation.

    Béla Lipták, PE, Control Columnist
    01/11/2006
  • Dig Deeper to Find More Capacity

    Pipeline simulation software can uncover hidden causes of capacity bottlenecks.

    Todd J. Willman, EPCON International, Reuben Gates, Shell Chemical LP, and Mark Haboian, Eastman Kodak Co.
    11/09/2005
  • The Synergy of Simulation, Experimentation and Technical Support Activities in a Research Consortium

    For the business of designing process heat exchangers, computational fluid dynamics (CFD) tools are still not practical for everyday use. However, in a research consortium such as HTRI, integrating advanced analysis tools like CFD with industrial-sized experimentation and then applying them to real-world technical problems provides a significant synergistic benefit to the consortium members.

    Kevin J. Farrell
    11/06/2005
  • 10 principles for securing control systems

    KEMA Consultant Jay Abshier takes an unbiased and highly detailed look at where plant security really is, and what is being done to better protect our process automation systems and infrastructure. Print page Email page 10 principles for securing control systems KEMA Consultant Jay Abshier takes an unbiased and highly detailed look at where plant security really is, and what is being done to better protect our process automation systems and infrastructure.

    10/25/2005
  • Simulated Moving Bed Chromatography Offers Real Attractions

    A continuous purification technique, simulated moving bed chromatography combines high yields and purities with easy scale up and reasonable throughputs.

    Kathleen Mihlbachler, Eli Lilly and Company, and Olivier Dapremont, Aerojet Fine Chemicals
    08/31/2005
  • Getting batch material transfers under control

    Batch material transfer control seems an easy task to carry out, but the reality is that many functions are necessary if the system is to accomplish accurate batch material transfer control. Weighing systems with device-level controls can help.

    08/10/2005
  • Efficient batch control

    Efficient batch control can be both an art and science, so act accordingly for best results, and always remember "it's survival of the fittest" out there.

    07/13/2005
  • Software Drives OEM Toward Efficiency and Energy Savings

    ABB designed software for its ACS800 drive so Curtis-Toledo could improve the operation of its rotary-screw compressors. The customized software can control the system pressure, air delivery, oil temperature and duty cycle directly from the drive.

    John Wilmes, ABB Inc.
    06/23/2005
  • Process Engineering: HART Offers Value in Plant Control Systems

    There's a myth in plants that HART offers little for Plant Control Systems and Enterprise Level Networks. But Ed Ladd from the HART Communication Foundation writes that by accessing the data in HART devices on a "full-time" routine basis increases performance, integrity, and reliability of plant control and enterprise level systems.

    Ed T. Ladd, Jr., HART Communication Foundation, Austin, Texas
    05/11/2005
  • Process engineering: Dryer provides a concrete lesson in control

    Removing water or moisture from a liquid stream is a critical operation in many processes. Liquid stream dryers commonly contain either molecular sieves or adsorbents; during the last 20 years, the use of molecular sieves has become much more common.

    Andrew Sloley, contributing editor, and Richard Readshaw, senior staff process engineer for VECO USA Inc.
    05/03/2005
  • Process engineering: In the trenches of Fieldbus War II

    Like the 20th Century’s Great Conflict, the first Fieldbus War never really ended. But what will the outcome be this time? This article from CONTROL makes an educated prediction on how the battle may turn out.

    03/10/2005
  • Process management: Raise an alarm about alarms

    Sure, having more alarms is a plus if they contribute to better plant operation.  But nowadays, more and more plants have numerous alarms that are causing more trouble than they are worth.

    Mark Rosenzweig, Editor-in-Chief
    01/19/2005
  • Expert Advice Maximizes Optimizer Value

    A combination closed-loop optimizer and G2 expert system allowed a largy chemical company to save more than a million dollars in reduced overall energy demand.

    James F. Sturnfield, Union Carbide Corp.
    12/21/2004
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