Articles

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  • Process engineering: Avoid pitfalls when starting up pumps

    Improper startup can result in excessive temperature and radial loading, both of which can lead to lower pump reliability from problems such as seal and bearing failure. Consultant Ross Mackay describes the three steps that should be followed during pump startup.

    03/14/2005
  • Process Engineering: Batch control sets the standard

    It has been nearly a decade since the Instrumentation, Systems and Automation Society (ISA) introduced S88, its first standard for batch control systems.  Its still integral in optimizing operations today.

    01/19/2005
  • Process engineering: Digital data recorders deliver

    This contribution from ControlGlobal.com compares mechanical, analog and digital recorders for data acquisition and concludes that local data logging can be the easiest way to satisfy regulatory requirements.

    05/11/2005
  • Process engineering: Doing your level best

    Level measurement can be a simple issue with numerous solutions.  Measuring the height of the material in a vessel is merely an interface issue that can be resolved in a variety of ways.

    01/21/2005
  • Process engineering: Doing your level best

    Plant engineers who find it is difficult to get good level measurements have plenty of company. A recent poll shows that it is considered to be one of the two most vexing problems by process automation professionals.

    04/08/2005
  • 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: Fieldbus is here - are you ready?

    Digital-based protocols, such as those used by fieldbus technology, are finding their way into a wider range of plant automation technologies. Read about the Fieldbus Foundation and how its technology can be implemented at your plant.

    Joe Conklin, Fieldbus Foundation
    02/10/2005
  • Process Engineering: FRI meets distillation needs

    Distillation has always been a critical and costly step in the manufacture of products in the petroleum, chemical, and pharmaceutical industries. Fractionation Research reveals how companies can pool their efforts to obtain experimental distillation data.

    04/29/2005
  • 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: HART – Dealing with device description

    There is a myth surrounding HART devices that you'll need a device description to communicate with a HART device. Learn why this isn't true and what you do need to know in operating a HART communication device.

    Ed T. Ladd, Jr.
    04/12/2005
  • 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 engineering: Is your pump cavitating?

    That rumbling/rattling noise you hear from your pump is the symptom for any number of potential problems. The first step is identifying the problem. This article will help you determine what exactly is wrong with your pump.

    Ross Mackay
    02/15/2005
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