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Plant Engineering Calculator

Cooling Tower Chemical Dose Cost Calculator — ppm, Feed Rate & Annual Spend

Convert a target active chemical dose and makeup-water flow into product feed rate, annual product consumption and treatment cost.

Inputs

Results

Active chemical 0.100 kg/h
Product feed 0.250 kg/h
Annual product 1250.0 kg
Annual chemical cost $3750
Product dose 50.0 mg/L

Formula

active kg/h=makeup m³/h×dose mg/L/1000; product=active/active fraction.

Worked example

At 5 m³/h makeup and 20 mg/L active dose, active chemical demand is 0.10 kg/h before correcting for product strength.

Assumptions & limits

  • Dose must come from a qualified water-treatment program and site chemistry.
  • This mass-balance tool does not select biocide, corrosion inhibitor or regulatory limits.

FAQs

What does this Cooling Tower Chemical Dose Cost Calculator calculate?

Convert a target active chemical dose and makeup-water flow into product feed rate, annual product consumption and treatment cost.

What should I verify before using the result?

Check units, operating point, measured site data and OEM limits. This calculator is a transparent screening tool, not a substitute for equipment selection or code-required design.

Why are intermediate results included?

Intermediate values expose the engineering chain so you can audit assumptions, compare scenarios and catch unrealistic inputs.

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Last updated: 2026-09-17