How to Use This Calculator
- Select fuel type: coal, petcoke, HFO, or natural gas and enter burner capacity in GJ/hr
- Enter primary air parameters: percentage, pressure (mbar), and coal properties (fineness, volatile matter)
- Click Calculate: to see fuel flow, combustion air required, primary air flow, nozzle area, flame momentum, and estimated flame length
Fuel & Burner Specifications
e.g. 120 GJ/hr = ~33.3 MW thermal
Typical 6–12%
Typical 100–250 mbar
Only for solid fuels; 80–92% typical
Only for solid fuels; 20–38% typical