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Recent content by Andy191

  1. Andy191

    AHU's Glycol coil design concern

    thread403-282138 Is there any experience(concern) of 4.5 degree C LAT glycol coil in AHU to share?
  2. Andy191

    Water loop design

    Thanks all the reply. It seem no project in practice of without antifreeze in 1 degree C chilled water loop. From point of safety design, it should has antifreeze in lower temperature water loop design.
  3. Andy191

    Water loop design

    The glycol chiller and AHU use heat exchanger to separate glycol water loop and chilled water loop, so glycol chiller loop will has antifreeze to prevent ice-built.
  4. Andy191

    4.5 degree C dew-point of LAT for cooling coil design

    Is it possible to design the without any antifreeze of 1.5 degree C chilled water system for AHU'S cooling coil in practice?
  5. Andy191

    Water loop design

    Assumption propylene glycol antifreeze in water, in worst case, water leakage of cooling coil will make it through air to contact with oral pharmaceutical product. That’s the reason why the 1 degree C water without any antifreeze I want to design. Is it possible to use suitable component in...
  6. Andy191

    4.5 degree C dew-point of LAT for cooling coil design

    Is propylene glycol approved by FDA in the food manufacture application?
  7. Andy191

    4.5 degree C dew-point of LAT for cooling coil design

    I'm trying to use water medium instead of glycol in waterside of cooling coil due to it is not sure if any impact of glycol to the air side. Does it work for using a heat exchanger to provide 1.5 degree C chilled water for low temperature dewpoint coil loop design without glycol added?
  8. Andy191

    Water loop design

    There is the question about water side of HVAC system. I plan to use a 1 degree c chilled water loop to keep coil's LAT of AHU at 4.5 degree c. Is there any concern of 1 degree c water loop design?
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