Posts Tagged ‘performance curve’

Affinity Law RPM

Sunday, September 16th, 2018 von admin

In this edition of the Centrifugal Pump Minute, the specialists of Grisworld take a look at the Affinity Laws that help govern the performance of your centrifugal pumps. This video focuses on the Affinity Law that can be used to predict pump performance when changing speeds.

Affinity Laws help govern the performance of centrifugal pumps

Thursday, August 16th, 2018 von admin

In this latest edition of the Centrifugal Pump Minute, the specialists of Grisworld take a look at the Affinity Laws that help govern the performance of your centrifugal pumps.

Learn how to easily estimate a pump’s performance when the impeller diameter is changed.

 

 

 

Predicting Performance Curves of Centrifugal Pumps In the Absence of OEM Data

Wednesday, January 3rd, 2018 von admin

Technical paper by: Jayanthi Vijay Sarathy

M.E, CEng, MIChemE, Chartered Chemical Engineer, IChemE, UK

Chemical and Mechanical Engineers in the oil & gas industry often carry out the task of conducting technical studies to evaluate piping and pipeline systems during events such as pump trips and block valve failures that can lead to

  • pipes cracking at the welded joints,
  • pump impellers rotating in the reverse direction and
  • damaged pipe supports due to excessive vibrations

to name a few. Although much literature is available to mitigate such disturbances, a key set of data to conduct transient studies are pump performance curves. A pump performance curve is a plot between pump head and flow rate. In Greenfield projects, when no pump vendor data is available, a necessity arises to use performance curves to conduct pipeline/piping studies to check for parameters such as design pressure.

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