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Glycol water coil - GPM calc?

Glycol water coil - GPM calc?

Glycol water coil - GPM calc?

(OP)
Cooling Cap = density x water flow rate x delta T

Or

(Short cut)  BTU/hr = 500 x GPM x dT

30% propylene, EAT: 10 LAT: 98.2 EWT: 170 LWT: 150

What will be the density value to get the GPM?

Thank you in advance.

 

RE: Glycol water coil - GPM calc?

Also, you're not going to get the same amount of BTU's/Hr out of 30% PGLY as you would out of 100% water with flowrates and DeltaT being equal.  Heat capacity of your glycol solution is lower than water (by more than 5%).

-TJ Orlowski

RE: Glycol water coil - GPM calc?

Volume and pressure drop will increase as glycol specific heat is lower and the kinematic viscosity is higher.

This information can be had on Dow or glycol mfg's website.

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