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.
Author: Andrew Sloley, contributing editor and Bruce Veale
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.
"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.
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.
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.
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.
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.