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  1. jmk407

    Tank Steam Heating Question

    MJCronin, They are relocating their facility and leaving their ancient Kewanee boilers behind. I am using this info to get an idea of the steam load to size the new boilers. Unfortunately their current operation is such that the boilers are on full fire 100% of the time, and all control is...
  2. jmk407

    Internal suction on building fabric wall due to exhaust fans

    This isn't really a natural ventilation issue. When the fan is on, most of the air will come from the path that creates the smallest pressure drop. The pressure drop through the louver will be provided as a function of CFM and in units of inches wg.
  3. jmk407

    Internal suction on building fabric wall due to exhaust fans

    The intake velocities appear to be high. I typically keep them at 500 FPM to limit moisture entrainment. What is the pressure drop through the louvers when the fan is running full speed?
  4. jmk407

    Tank Steam Heating Question

    I am working on a chemical plant relocation, specifically the utilities. The client can be described as a job-shop operation - their production is highly variable and depends on the customer's order. As such, storage tanks may be used to store various materials. I have a group of tanks that...
  5. jmk407

    Fluid pressure question due to static head

    Hello, This should be a relatively easy question, but it's been racking my brain for a little - more of a though experiment that developed at a meeting where a coworker asked about connecting a separate pump to the pipe at a vertical storage tank outlet. One thing I needed to look at was the...

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