Kiln Shell Heat Loss Calculator — cementequipment.org

Kiln Shell Heat Loss Calculator

Radiation & convection heat loss analysis for rotary cement kilns — by section

How to Use This Calculator

Enter kiln data: diameter, ambient temperature, wind velocity, and clinker production rate (tph)
Enter shell temperatures and lengths: for up to 3 zones (burning, transition, preheating)
Click Calculate: to see radiation and convection losses per zone, total heat loss in kW, kcal/h, and kcal/kg.cli

Kiln Diameter (m)External shell diameter

Ambient Temperature (°C)Average surrounding air temp

Wind Velocity (m/s)Optional; 0 for still air (h=15)

Clinker Production (tph)For kcal/kg.clinker output

Section Name

Length (m)Typical: 5-7 x D

Shell Temperature (°C)Burning zone: 250-400°C typical

Section 2 — Transition Zone

Section Name

Length (m)Typical: 5-8 x D

Shell Temperature (°C)Transition zone: 200-300°C typical

Section 3 — Preheating Zone

Section Name

Length (m)Remaining kiln length

Shell Temperature (°C)Preheating zone: 100-250°C typical