The following equations are used in the FCM design program, and are referenced in those design pages.
Maximum flow rate through the FCM:
Maximum allowable flow rate through the FCM with reasonable tube length:
Maximum tube diameter given desired head loss constraint:
Maximum flow rate through each tube given the maximum tube diameter:
Minimum tube diameter to get laminar flow at maximum flow rate:
Minimum tube diameter to produce desired head loss using minimum length of tubing:
Length of tube required to get desired head loss at maximum flow: