Mining Resources
Mining
A veteran of valve sizing with more than 40 years of experience provides his perspective on how to calculate the compressibility factor of a real gas for control valve sizing purposes.
Most control valve manufacturers include IEC 60534-8-4:2015 in their control valve sizing and selection software to predict control valve hydrodynamic noise. However, users who want to make quick noise predictions or who want to construct valve sizing applications, programming the above noise standard can be a daunting task.
There seems to be this constant game of tug-of-war between Information Technology (IT) and Operation Technology (OT) personnel in industrial settings. In general, there are three misconceptions that OT personnel have about the IT department.
If one wants to be able to do accurate hand calculations, or construct a simple program or Excel sheet, the method described here gives answers that agree exactly with iterative calculations using the equations in the current version of the ISA and IEC standards.
Emerson released its TopWorx™ Magnetic Target Switch™ (MTS) to provide ready-to-install, universally-certified position sensing for explosion proof and intrinsically safe applications.
The availability of an easily constructed Excel worksheet that calculates and graphs control valve installed gain in conjunction with the user’s preferred control valve sizing application has prompted a new interest in the application of these calculations. Three examples are shown here.
This white paper discusses the rising stem valve and compares it to the rotary valve. The reader will learn what to consider to ensure the lowest overall life cycle cost and best possible degree of process control.
A simple process method based on the principle that piping pressure losses are approximately proportional to flow squared is presented.
There are two main applications when it comes to tank heating- maintaining temperature or increasing temperature. Temperature maintenance, is typically accomplished via external means like heat trace or with insulating blankets wrapped around the tank.
As long as products have had ethernet ports, people have been asking for remote access to them. They believed they could just plug the devices into the internet, and it would all work. As more software tools became available and internet speeds increased, capable users found ways to give themselves access, however, there was a catch.
A lesson for me is that I need to involve you earlier in the program.
You were tireless in your support and it will not be forgotten!