Clinker Cooler Performance Calculator

Review clinker throughput, grate loading, fuel heat input, secondary air rate and residual clinker sensible heat. Cooler recovery efficiency requires additional measured heat-balance data.

How to Use This Calculator

Enter kiln operating data: measured dry feed, the represented fuel feed rate and corresponding net calorific value
Enter cooler specifications: active grate area, kiln-feed-to-clinker factor and clinker discharge temperature
Enter measured air data: secondary air flow and ambient temperature. Actual cooler heat recovery cannot be calculated from flow alone.
Click Calculate: see grate loading, fuel energy input, secondary air per kilogram clinker and clinker sensible heat above ambient

Operating Parameters

Kiln Feed Rate (TPH)Raw meal feed to kiln

Measured Fuel Feed (TPH)Total fuel represented by the entered net calorific value

Fuel NCV (kcal/kg)Net calorific value for the fuel input above

Cooler Specifications

Grate Area (m²)Active grate surface

Design Fuel Heat Input (GJ/hr)Optional OEM / plant design thermal input; not cooler grate rating

Clinker FactorFeed / Clinker ratio

Clinker Exit Temp (°C)At cooler discharge

Air Flow Distribution

Measured Secondary Air (Nm³/hr)Only secondary air, not total cooler fan air; verify flow basis

Ambient Temp (°C)Reference temperature

Continue your cement engineering work

Explore the 20 free cement engineering calculators and the cement manufacturing process guide to cross-check process assumptions.

Need a downloadable worksheet for cooler-related calculations? The 54-file Excel Tools Pack ($49) lists 445496768-Cooler-calculation-xlsx.xlsx and 258428190-Vrm-Kiln-Cooler.xls. Check their filenames and assumptions before purchasing; the online calculator above remains free. For broader PDF references and presentations, compare the 931-file Complete Library ($249.99).