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chilled water coil delta t

zepfan Member Posts: 430

August 2013 in A-C, Heat Pumps & Refrigeration

does anyone know if there is a formula to find what the air temperature drop should be across a chilled water coil, if the gpm,airflow,and water temperature drop is know? thanks to all

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Comments

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  JStar Member Posts: 2,752

  August 2013 edited August 2013

  Temp. drop
  
  Delta-T = (BTUH / CFM) / 1.08
  
  
  
  Approximately.
  
  
  
  http://www.refrigtech.com/Knowledge_Center/Knowledge_Troubleshooting_AC_System.pdf
  
  
  
  Check out page 11 for a chart based on indoor wet bulb.

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  unclejohn Member Posts: 1,833

  August 2013

  You Should
  
  Get 10* F drop.

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