OCR Text |
Show D J 1000 burner B heal input - 520 kW group H natural gas 800- 600- 400- 200- 1000 2000 3000 furnace length mm 4000 Fig 9 Burner B C O Concentration in the Burner Level in the Furnace Chamber fuel gas c£> Fig 11 Burner C burner B heat input = 520 kW 35' mV ,3H 33- 32- 31- 30- 29- 28- 27- 26- 25 24 23 22 21 20 x = 'G= Pf5 \ 1.05 70 mm 0.5 mbar = 690 *C 1800 Tw 1-1750 *C hl700 -1500 1450 1400 1000 2000 3000 furnace length mm 4000 Fig 10 Signal from Total Heat Flux Probe (qO as a Function of Furnace Length and Mean Furnace Wall Temperature T w burner A and C heat input = 520 kW group H natural gas 3000 NO, mg/m3 2500-I 2000- 1500 1000- 500- x = Pf5 T« 1,05 0,5 mbar = 690 *C burner A o-°- D-°C 800 1000 1200 1400 mean furnace wall temperature Tw Fig 12 NOx Emission from Burner A and C as a Function of Mean Furnace Wall Temperature T w |