Articles

261-280 of 306 < first | | | last >
  • 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
  • Energy savings are in the air

    Anywhere compressed air can be eliminated represents an opportunity to reduce system operating expenses. Often, this reduction means fewer compressors must operate to meet the plant's air requirements.

    Christopher Schmidt, Mark D'Antonio and Alan MacDougall
    08/05/2004
  • Motor Selection Made Simple

    Follow these straightforward steps to help you select the right motor for your centrifugal pump

    William McNally
    07/01/2004
  • Rev up energy savings

    Electric motors in continuous or near-continuous service have high energy costs, even at the relatively low electric rates common in much of the chemical industry. Don't squander savings opportunities when considering motor replacement

    05/13/2004
  • Don't let vibratory separators shake you up

    Understanding a few key points simpifies setup and operation, and leads to optimum screening patterns. These include adjusting vibratory motion and optimizing separator performance.

    Eric Johnson, P.E.
    03/08/2004
  • Better Damper Control Nixes NOx

    Installing accurate inline oxygen analyzers and precision draft controls can optimize emissions reductions and fuel savings

    03/03/2004
  • Triangular cycling occurs in a pressure loop

    Install a flow meter in the recycle, cascade the flow set point with a pressure control loop. With proper tuning, the valve characteristics are lost in the flow control loop, which should be tuned fast with PI.

    03/01/2004
261-280 of 306 < first | | | last >