Glycol equations

Arnold E. Clubine

Does anyone know the modifiers to the Darcy Weisbach or Hazen Williams equations to account for glycol when calculating friction loss in hydronic systems? Need to account for temperature, specific heat, specific gravity,etc,compared to water at 60 deg F .



Does any one no if the B & G Circuit Syzer is based upon Darcy or Hazens?

hot_rod

Try this link

For the Engineering Manual from Dow





http://msdssearch.dow.com/PublishedLiteratureDOWCOM/dh_010e/0901b8038010e417.pdf?filepath=heattrans/pdfs/noreg/180-01286.pdf&fromPage=GetDoc

bob_46

Syzer

Moody's chart or Darcy=Wiesbach