Calculators
Free calculators for chiller plants and cooling towers
Each one shows its formula and sources. Embed any of them on your own site.
Cooling tower water balance
Evaporation, makeup and blowdown for a cooling tower from flow, range and cycles of concentration, with annual gallons and cost.
Makeup = E × C ÷ (C − 1), E = 0.00085 × Q × R
Open calculatorCycles of concentration savings
How much makeup water and blowdown you save by raising a cooling tower's cycles of concentration, in gallons and dollars.
Makeup = E × C ÷ (C − 1), at C now and C target
Open calculatorChiller plant energy cost
Annual chiller electricity and cost from plant size, full-load hours and kW/ton, and what an efficiency improvement is worth.
kWh = tons × EFLH × kW/ton
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