Articles

1941-1960 of 2478 < first | | | last >
  • Gas up your sealing knowledge

    As users become more familiar with gas seal technology and its advantages, gas seals are being applied to a wider variety of applications and equipment than ever before. As the seals gain in popularity — know their advantages and disadvantages.

    Scott Boyson, Chesterton
    12/05/2006
  • pH measurement faces acid test

    Quest for more reliable readings prompts development of tougher and more-intelligent sensors. While pH control often plays a crucial role in processing, achieving reliable readings remains challenging at many sites. After all, pH sensors frequently serve in aggressive chemical environments.

    C. Kenna Amos, contributing editor
    12/05/2006
  • Valve innovation helps with nuclear waste

    Valves and actuators designed for handling radioactive waste must meet strict government requirements. This sometimes requires unconventional solutions. Such was the case at the Hanford Waste Treatment Project (WTP), Hanford, Wash.

    Roy Johnson, Flowserve
    12/05/2006
  • NeSSI’s success should be a lock

    The New Sampling/Sensor Initiative or NeSSI that replaces tubing, fittings and other hardware in a sampling system with miniature modular components makes sense. Enhancements now in the works should assure its success.

    Mark Rosenzweig, editor in chief
    11/29/2006
  • Tiny reactors aim for big role

    Process Intensification (PI) has promised many things but has it fulfilled its promises? When looking at reactor technology, the answer is a definite “Yes.”

    Rocky Costello, R. C. Costello & Associates, Inc.
    11/29/2006
  • Industry can do well by doing good

    Ignoring climate change could eventually damage economic growth, according to an authoritative report, says Mike Spear, editor at large, in this month's End Point column. Read more on the economics of climate change.

    Mike Spear, editor at large
    11/29/2006
  • Flowmeters clean and dirty

    ControlGlobal.com contributor David W. Spitzer provides a look from a process automation perspective at how magmeters and Venturi meters are vying with ultrasonics for clean and dirty water applications.

    David W. Spitzer
    11/09/2006
  • Data validation: Jewel in the fieldbus crown?

    Many users and most suppliers to the industry see process availability as the big payout benefit of Foundation Fieldbus (FF) diagnostics — a good portion of it realized through data validation.

    John Rezabek, Contributing Editor
    11/09/2006
  • Consider changing the speed not the pump

    Chemical Processing's Contributing Editor Andrew Sloley advises that instead of reflexively resorting to brute force to provide enough head, adjusting the pump speed might make for a better solution.

    Andrew Sloley, contributing editor
    11/01/2006
  • Avoid trouble with slurries

    Handling slurries (a mix of solids and liquids), should be based on experience and experiments, not theory. Much of the knowledge obtained from pneumatic conveyors and fluidization systems can be used in understanding slurries.

    Thomas R. Blackwood, Healthsite Associates
    11/01/2006
  • Keep measurements on the level

    This article looks at six technologies — mechanical floats and displacers, differential pressure, capacitance, ultrasonic, radar, and guided wave radar — that are used most often for automated control, and provides practical guidance for choosing among them.

    Jerry Boisvert, Siemens Energy & Automation
    11/01/2006
  • Rethink experiment design

    The traditional approach to experimentation, often referred to as the “scientific method,” requires changing only one factor at a time (OFAT), but this method only allows one to see things one dimension at a time. By varying factors only at two levels each, but simultaneously rather than one at a time, experimenters can uncover important interactions.

    Mark J. Anderson and Patrick J. Whitcomb, Stat-Ease
    11/01/2006
  • Wireless devices may get a shake up

    Last month’s ISA Expo in Houston clearly showed how much attention wireless technology is attracting. However, concern about the reliability and life of batteries remains an issue. That’s why harvested or scavenged power is attracting interest.

    Mark Rosenzweig, editor in chief
    10/31/2006
  • Outsourcing innovation development

    A new development method may allow breaking away from the pack as companies continue to employ outsource facilities that offer flexibility and foster innovation.

    Chuck Kenney, Pressure Chemical Company
    10/31/2006
  • Check for human errors

    You may be making an error if you don’t find time to double-check your own and other’s work. Making time to check human work can prevent costly mistakes and save time.

    Trevor A. Kletz, Loughborough University
    10/31/2006
  • Work to build coalitions with difficult teams

    Managing feuds is the first step toward a successful project, according to Senior Editor Dirk Willard in his monthly installment of Chemical Processing's Field Notes column.

    Dirk Willard, senior editor
    10/24/2006
  • Get answers to your biomonitoring questions

    Guidance for chemical manufacturers, processors, and distributors about Section 8(e) of the Toxic Substances control act was issued on September 14, by the U.S. Environmental Protection Agency (EPA). Chemical Processing's Regulatory Editor Lynn Bergeson discusses the new regulation.

    Lynn Bergeson, regulatory editor
    10/24/2006
  • Rise to the challenge of global legislation

    Despite having a parliament that regularly shuttles itself, lock, stock and ballot box, for four days each month between Brussels, Belgium, and Strasbourg, France, the European Union (EU) still manages to put out an amazing amount of legislation.

    Mike Spear, editor at large
    10/24/2006
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