EN 12952-16:2002

Foreword
1 Scope
   1.1 Firing systems
   1.2 Fuels
   1.3 Operation
2 Normative references
3 Terms and definitions
4 Fuel storage facilities with conveying plant
   4.1 General
   4.2 Conveying plant
   4.3 Fuel bunkers
   4.4 Fuel bins
5 Fuel treatment
   5.1 General
   5.2 Size reduction of the fuel
   5.3 Drying of the fuel
6 Fuel feeding
7 Explosion prevention measures
8 Equipment for combustion air supply and flue gas
   discharge
   8.1 Air supply
   8.2 Combustion air/fuel ratio
   8.3 Flue gas discharge
9 Firing system
   9.1 General
   9.2 Monitoring and control
   9.3 Electrical equipment
   9.4 Safety precautions
   9.5 Common stack for several firing systems
10 Ash handling and extraction
11 Operating manual
Annex A (informative) Operating requirements for permanently
          supervised firing systems for solid fuels for
          fluidized-bed and grate firing systems
Annex ZA (informative) Clauses of this European Standard
          addressing essential requirements or other
          provisions of EU Directives
Bibliography

These requirements apply to atmosperic fluidized-bed and grate firing systems. This system commence at the fuel bunkers and at the ash extractions plant. For combination of various firing systems, the individual requirements of each system shall also apply, especially those included in prEN 12952-8 and prEN 12952-9. If several fuels are burnt simultaneously or if a fuel quality varies considerably (e.g. moisture content), additional safety measures may be necessary, especially with respect to limitation of the fuel flow into the firing system and ensuring proper air supply to the individual fuels.