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  1. CharlesHeard

    P&ID Symbol for ClearWELL

    We are installing electronic scale prevention units on a few of our wellheads to test their effectiveness. One issue we have run into is determining what to call these units out on our P&IDs. Physically, a ferrite ring is attached around the casing and connected to 120 VAC. There is no...
  2. CharlesHeard

    Mafia Corruption in Quebec

    Not sure how much coverage this has gotten outside of Canadian media, but right now there is a huge public inquiry going on about corruption and Mafia ties to the construction industry in Quebec. From the way it sounds, it was impossible to do any work there without paying off the Mafia and...
  3. CharlesHeard

    Analysis of larger diameter Flex hose

    Hello Everyone, We are doing some work on a pump system (main pump and booster) that is pressurizing up to final pressure of 1700 kPa and moving a slurry initially at ambient temperature. The piping is 20" diameter and there are to be flex hose connections between the intakes and the...
  4. CharlesHeard

    Standardized Colour Scale for the Colour Blind

    Like 8% of males and 0.5% of females in the world, I am red-green colour blind. Overall, this isn't much of a disability, but I do find understanding colour-scaled FEA outputs very difficult. I have noticed that the standard scale for colour goes, in increasing stress/heat/whatever is being...

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