Kiln Heat Balance Calculator






Kiln Heat Balance Calculator — cementequipment.org


Kiln Heat Balance Calculator

Complete heat balance for cement rotary kilns: combustion, clinker formation, radiation, exhaust gas, and cooler losses

How to Use This Calculator

  1. Enter production data: clinker output kg/h, feed ratio, coal rate, fuel NCV
  2. Enter coal ultimate analysis: C, H, S, ash, moisture percentages
  3. Enter raw meal chemistry and process temperatures: feed, exit gas, cooler, clinker, shell zone temps
  4. Enter air flows and shell dimensions: cooling air, primary air mass kg/h, kiln shell area, zone temperatures, HTC
  5. Click Calculate: see full heat balance table (Input vs Output in kcal/kg.cli), key metrics, and cooler recovery efficiency

Production & Fuel Data

e.g. 110,220 kg/h = 2,645 tpd
Dry feed per kg clinker
As-fired fuel rate
Net calorific value

Coal Ultimate Analysis (%)

% wt

Raw Meal Chemistry (% loss-free, for CO2 calc)

Temperatures (°C) & Air Flows (kg/h)

Total cooler air mass

Kiln Shell Radiation



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