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  1. markdblissmn

    Heat Sync Question

    I am trying to cool a linear electric motor. I want do design a custom water cooled heat sync into the support structure. The linear motor would be bolted to this with thermal paste between. Here is my basic question: Is it better to have a flow path in one direction across the part? Better...
  2. markdblissmn

    Two Tanks Connected by Gas Valve - Temperature Rise? Adiabatic Compression?

    I have a two part question: No, this is not homework. Reference my other threads (http://www.eng-tips.com/viewthread.cfm?qid=354606). 1. Why is nitrogen used in autoclaves? 2. What is the temperature rise and fill time for a two tank connected system. Is adiabatic compression valid...
  3. markdblissmn

    How long to fill a air cylinder? Time vs. Pressure vs. Volume

    I am trying to figure out how to calculate how long it takes to fill an air storage tank of a certain size to a certain pressure given a compressor HP. What calculation or method should I use? Imagine a 1000HP central facility compressor connected to a 4" main distribution line. If I have a...
  4. markdblissmn

    "Pneumatic Cylinder" Pressure Vessel Design Codes with Locking Teeth

    What design codes cover pneumatic actuators? What legal concerns are there if a design doesn't have an ASME BPVC stamp? See below details... I am designing a custom quick locking pressure vessel that operates like a pneumatic cylinder - radial o-ring between upper half and lower half (not a...
  5. markdblissmn

    Binary Gas Thermal Conductivity Questions

    I would like to understand if thermal conductivity is linear between a differing helium% / air% binary gas mixture and also how it changes at varying pressures between 1atm to 10atm. See below image...

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