Cooling-tower range calculator

Tower range is the hot-to-cold water temperature drop; it describes heat rejection at the stated water flow.

Units

\text{Range} = T_{\text{hot}} - T_{\text{cold}}

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

Given

\text{Range} = 96 - 83 = 13

Symbol	Meaning	Unit
$\text{Range}$	water temperature drop	°F
$T_{\text{hot}}$	entering tower water temperature	°F
$T_{\text{cold}}$	leaving tower water temperature	°F

Symbol	Meaning	Unit
$\text{Range}$	water temperature drop	K
$T_{\text{hot}}$	entering tower water temperature	°C
$T_{\text{cold}}$	leaving tower water temperature	°C

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.