Articles

181-200 of 241 < first | | | last >
  • Pressure tests can spur successful start-up

    Push it: if it breaks it probably needed to be replaced, says Dirk Williard, in this month's Field Notes column. Doing so can help improve your processes.

    Dirk Willard, senior editor
    03/01/2007
  • Take the pressure off pressure control

    Linkage of other variables can stymie hot vapor bypass schemes, according to Andrew Sloley's Plant InSites column.

    Andrew Sloley, contributing editor
    02/19/2007
  • 10 tips for diagnosing control valve problems

    To make the most of diagnostic equipment used in chemical processing, technicians must stretch their knowledge of control valves and related diagnostic equipment that keeps tabs on valve health and safety.

    David W. Douglas
    01/22/2007
  • Distillation control and optimization, Part 3

    Control's Béla Lipták continues his series on control of distillation processes, this time focusing on managing reboiler flow, temperature, feed rate, loading and reflux for economy, stability and safety.

    Béla Lipták, PE, CONTROL Columnist
    01/05/2007
  • How to select control valves, Part 3

    When it comes to selecting and sizing control valves, gain and stability are key characteristics. The non-commercial valve selection chart in this article serves as a reference tool you can download.

    Béla Lipták, Contributing Writer
    12/19/2006
  • 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
  • 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
  • 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
  • How to select control valves, Part 2

    When it comes to selecting and sizing control valves and positioners, this article not only helps you pick the right one for the right job, but also includes a valuable valve selection chart you can download!

    Béla Lipták, PE, CONTROL Columnist
    10/17/2006
  • Innovations in batching, dosing and weighing

    Challenges brought on by new regulations and technical problems for batching, dosing and weighing have pushed users to find some innovative and surprising solutions beyond our own industry.

    09/05/2006
  • Energy savings are often disguised as problems

    Carefully managing compressed air can save money. Compressed air is often overlooked in energy studies because many people do not fully understand compressed air equipment, their own system, or what it costs to produce compressed air power.

    Scott Van Ormer and Don Van Ormer, senior application engineers, Air Power USA
    08/18/2006
  • How to select control valves, Part 1

    When it comes to selecting and sizing control valves, the non-commercial chart in this article not only helps you pick the right one for the job, but also serves as a reference tool you can download.

    Béla Lipták, PE, CONTROL Columnist
    08/15/2006
  • Get a handle on solids’ flow

    Properly accounting for how bulk solids actually will flow in a vessel or overall process can be crucial for successful operations. Learning some simple parameters can often provide a good sense of flowability.

    Don McGlinchey, Glasgow Caledonian University
    05/22/2006
  • Choose the right temperature sensor

    There’s no simple solution to achieving accurate temperature measurement. It’s a combination of knowing the inherent accuracy of particular sensor types, and how environmental factors can create further measurement uncertainty and the sensor calibration techniques available to reduce this uncertainty.

    Cal Swanson, Watlow Electric Manufacturing Co.
    04/24/2006
  • Flow metering gets more fluid

    There are more and more funcationalities being added to your most trusted instrumentation. These established technologies have expand their reach and performance.

    Mike Spear, editor at large
    01/09/2006
  • Flow Meter Focus

    ChemicalProcessing.com introduces Flow meter focus, a compilation of useful articles, news, white papers and product information related to flow meters.

    09/28/2005
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