PS Herne Unit 4
500 MWel, 1512 t/h > LowNOx Firing System for Bituminous Coal

Legend
Selected References of Steinmüller Engineering
Achievements
Widening of applicable coal range to "world coal" and reduction of primary NOx emissions, reducing OPEX for SCR reagent.
(STP @ 6% O2)
NOx: < 400 mg/m3
CO : < 25 mg/m3
Fuel: World Coal (a.r.)
LCV: 16,7-26,4 MJ/kg (3,9-6,3 Mcal/kg)
w: 7-18 %
N: 1,2-1,9 %
a: 6,0-30%
VM: 21-36 %
Boiler design: Tower type, Benson boiler with opposed firing system, 12 burners, 1512 t/h, 292 bar, 535/541°C (SH/RH)
- Commissioning: 1989 revamp by Steinmüller Engineering 2013
Scope of Supply
- Process engineering for LowNOx firing system
- 3D CFD modelling
- Mechanical design of burners and ductwork
- Manufacturing and installation of 12 LowNOx burners
- Optimization of pulverized fuel distribution
- Installation of over fire air and side wall air system
- Commissioning and testing