Articles

261-280 of 319 < first | | | last >
  • Become a PSAT Qualified Pump Specialist

    The Hydraulic Institute and the U.S. Department of Energy have partnered to offer a two-day PSAT Qualification Workshop to be held September 7-8 in Dallas, Texas.

    07/18/2005
  • 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
  • Drive up energy efficiency

    The constant-speed approach to AC motors made a lot of sense when energy was cheap and drives technology was in its infancy. With their latest advances, adjustable speed drives can provide one of the best energy efficiency options for a plant.

    Mike Spear, editor at large
    06/16/2005
  • 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
  • Compressed Air Systems: The Secret is in the Pipe

    There’s no such thing as too large a compressed air line.  A common error in compressed air systems is line sizes too small for the desired air flow.

    Hank van Ormer, Don van Ormer and Scott van Ormer
    03/14/2005
  • 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
  • Tackle tough separations

    There are a plethora of devices in the marketplace that are designed to improve separation and thus improve product efficiency.  Learn how to determine which one is ideal for each particular process application.

    Thomas H. Wines, Pall Corp.
    02/18/2005
  • Chemical industry: Competing with the "China price"

    Chinese producers are consistently offering materials that are cheaper than most American and European producers. This influx of lower cost supplies is threatening the welfare of some domestic plants. How are these American plants dealing with the issue? Voice your opinion on how you'd deal with it with our online poll inside the story.

    Bernie Price, Polaris Veritas Inc.
    02/18/2005
  • Gaskets: meeting the acid test in sealing

    Dow Corning Corp. was experiencing difficulties sealing a large hydrochloric acid column. GORE-TEX Series 600 gasket tape proved it could seal tightly for an extended period of time.

    Steve Beach, Dow Corning Corp., and Rob Haywood, W.L. Gore & Associates
    02/15/2005
  • Save a bundle solving pressure-drop problems

    Pressure drop in compressor-suction and interstage coolers often creates problems. In some cases, just a few pounds of extra pressure drop make a revamp unworkable.

    Andrew Sloley
    11/04/2004
  • Better damper control delivers big savings

    Installing an electric drive on a steam boiler damper results in lower fuel consumption. The reason? The electric drive enables boiler operation with just the right amount of excess air at lower firing rates.

    Joshua I. Anderson,&nbsp;Adolfo B. Aparicio and Scott T. Rutkoski
    11/01/2004
  • Keep motor drives ready for action

    Annually reforming stored or non-operational drives ensures that they remain ready to operate at peak performance. Failing to do this can lead to capacitor damage when the converter starts to operate.

    Kjell Ingman and Mikko Lammi
    10/16/2004
  • Give gaskets a squeeze

    Reevaluate gasket use when operating conditions or maintenance procedures change.

    Andrew Sloley
    09/16/2004
  • Sealless pumps get their turn

    Cost and design improvements are spurring increasing use, particularly for handling hazardous fluids.

    Nick Basta
    09/16/2004
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