Articles

on 'Fluid Handling'

241-260 of 306 < first | | | last >
  • The FRETT approach to pump problems

    Some U.S. oil refineries repair their centrifugal pumps every three years while other refineries enjoy an average repair interval of 10 years. Learn about the highest-performing refineries and other petrochemical companies that have significantly reduced pump failures, and how you can obtain the same results.

    Heinz P. Bloch, P.E.
    10/16/2006
  • Increase pump performance

    In this web exclusive on ChemicalProcessing.com, pump expert Ross Mackay says a key to a pump's performance is to look at the control system it's running with.

    Ross Mackay
    09/18/2006
  • Piping for toxic and hazardous gases

    When processes change and plants need to install any of several types of ultra-high-purity process gases, specifying an appropriate piping system is crucial. Learn about a sound system design that maximizes efficiency, purity and safety.

    Jeffrey S. Close
    09/11/2006
  • Fieldbus wars continue

    As wireless Ethernet continues its aggressive growth, end users have to wonder, “Will it replace fieldbuses?” It is clear that a battle is shaping up.

    Rich Merritt, senior technical editor
    08/23/2006
  • Improve your approach to hazardous materials

    Committing a significant level of resources to dealing with hazardous materials can be difficult for small companies. Learn to focus on developing an accurate inventory and gain a strategic advantage.

    Jess Kraus and Michael Beckel, 3E Company
    08/18/2006
  • 2006 Readers' Choice Survey

    The equipment, services and suppliers selected to make a job easier greatly contribute to on-the-job success. The Readers' Choice survey identifies the leading vendors in more than 40 categories.

    Ken Schnepf, managing editor
    08/17/2006
  • 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
  • Spot problems with adsorbents

    The longer-than-expected life of an adsorbent points up the need to always assess the consequences of system additions. While sometimes this may involve detailed calculations, simply looking to the laws of physics can eliminate potential headaches.

    Andrew Sloley, contributing editor and Bruce Veale
    08/14/2006
  • Pump Performance: Kayo Cavitation

    Checking pump performance curves is one of the first steps in troubleshooting a centrifugal pump problem or seeing if a pump can handle new service conditions. Learn to look for more than just insufficient NPSHA, the common culprit, when investigating cavitation.

    Andrew Sloley, contributing editor
    07/17/2006
  • Better Design Is No Pipe Dream

    The benefits of using pipeline simulation tools at the piping and instrumentation diagram (P&ID) level, rather than running simulations just on the process flow diagram, can often be overlooked.

    Mike Spear, editor at large
    07/17/2006
  • Keep a steady eye on measurements

    While engineers often strive to keep processes running without too much variation, measurements that don’t change may be a cause for concern not celebration, as one refinery can attest.

    Andrew Sloley, contributing editor
    06/19/2006
  • Measure your progress

    How well do you know your measurement uncertainties? Find out with this 15-item quiz from Dr. Gooddata.

    Ronald H. Dieck, Ron Dieck Associates, Inc.
    06/19/2006
  • Pumping Temperature Considerations

    "Bad actor" pumps are those pumps that have trouble with frequent and repetitive failures. In many cases, the source of the problem is an ANSI pump trying valiantly to handle a liquid well beyond the range of its design rating.of 300 degs. F.

    Ross Mackay
    06/19/2006
  • Separation Technology: Draw Insights on Distillation

    Residue curve mapping is a powerful tool to better understand the design and operation of distillation columns. This article describes how to use residue curve maps to check the feasibility of separation of homogeneous mixtures and for developing the conceptual design of towers.

    Raymond E. Rooks, The Dow Chemical Co.
    05/15/2006
  • Mind Mixer Mechanical Design

    While most mixers can provide a long service life — for instance, some are still operating after more than 30 years — mechanical problems can shorten life or even break parts. In this article, learn about all the mechanical problems that may befall your mixing equipment.

    David S. Dickey, MixTech, Inc.
    04/18/2006
  • Keep measurements on the level

    Changes in liquid densities can throw off readings. Plants commonly rely on differential pressure (DP) cells to measure level. Read this month's Plant InSites for advice on how to solve these level problems.

    Andrew Sloley, contributing editor
    04/17/2006
  • Find the real cause of pump gas up

    Simply blaming high feed temperature for inadequate suction isn’t enough when diagnosing pump problems. Read this article to get a laundry list of causes for pump gas up.

    Andrew Sloley, contributing editor
    04/17/2006
  • Flexible Pipe Couplings

    Pipe strain can cause premature failure of pumps. This can frequently be absorbed by a flexible pipe coupling... but only if that pipe coupling is properly installed. Merely putting it into the line without any support, will not achieve any significant relief from the pipe strain. In order to protect the pump against the pipe strain, it must be anchored.

    Ross Mackay
    04/04/2006
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