Follow Me On The Web!

The Internet Defense League

Process and Instrumentation

AutoCAD P&ID: Importing Blocks and Symbols

1 August, 2012 Posted by Christopher Jenner
While teaching myself AutoCAD P&ID over the summer break I ran into some issues with inline blocks and database access. This is just a quick tutorial covering how to import a symbol/block into AutoCAD P&ID’s database and access functions like scaling on insert, inline symbols/blocks (Join type), auto block nozzles and general style properties. Firstly, […] Read more»

Gear Pumps

2 July, 2012 Posted by Christopher Jenner
As a chemical engineering intern over the 2011/2012 summer I was exposed to a number of different pumping mechanisms. As the process fluids I was dealing with were of high viscosity, the most common pumping system I came across was the gear pump. Hopefully the following (summary of my notes) helps anyone looking for information […] Read more»

Approach to Heat Exchanger Design

22 June, 2012 Posted by Christopher Jenner
Just some thoughts and a quick look at heat exchanger design. My goal here was to simplify a number of models without getting into too much detail. Satisfying both process and operation requirements when designing a heat exchanger (HX) can be difficult, especially when doing so economically. However, there are some key rules to follow that can make the process more effective. […] Read more»

Shell and Tube HX: Baffles

17 June, 2012 Posted by Christopher Jenner
I’ve been working on a shell and tube heat exchanger design for a university project and decided to put some thoughts down about baffles. I find the mechanisms behind heat exchangers quite interesting, so I might flow this up with a future post on heat exchanger design. The baffles provide two main functions: they support the […] Read more»

AutoCAD P&ID symbols standards

21 March, 2012 Posted by Christopher Jenner
AutoCAD P&ID has four different symbol standards templates JIS, ISA, PIP, ISO/DIN. Depending on your company’s standards, guidelines, templates and region, the one you use will vary. It’s important to start with the correct standard, as changing later will require remapping of your entire diagram. It is not good practice to use two different standards […] Read more»