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Show 50 E Ou a. 20 10 - 5 - - - - _ - - 1 1 \ \ 1 1 1 \b \ a ui^ i i - - - i 0.5 0.6 0.7 i/r,,kK-' 0.8 0.9 Fig.9. The N O x level in the exhaust gases, adjusted to m0 (-Mf 0 25„) = 300 k W per burner, Ta = 400 °C and XQi = 3 %. Curve a: Series 1-XBM2-T single-burner, tunnel-chamber trials. Curve b: Series 3-XBM2-F three-burner, full-furnace trials Data for the Series 1-XBM1-T/F trials (D, = 6.22 m m , D2 = 18 42 m m , ft= 65°, 02=10°): Symbol • 3 • • a • Chamber setup Full* Full* Tunnel Tunnel Tunnel Tunnel Chamber size, m xmxm 1 x 4.5x3 1x4.5x3 1x1.5x3 1 x 1 x3 1 x 1 x3 1 x 1 x3 Bare sink, m 0 1.5 0 0 0.75 3 Covered sink, m 2 13 5 12 3 3 2.25 0 •Meaning that the full furnace chamber was used Fig. 11. Gas composition profiles determined by probing through the nearfield port in the horizontal midplane (z = 500 m m ) in Trial 950516, Series 1-XBM2-F: (c) CO2, (d) CO, (e) NOx. Burner parameters: Dx = 6.35 m m , D2 = 19.05 m m , ft = 35( 02=10°. Key to data (for the exhaust gas, the range of the data is shown): x, mm 479 726 1078 1417 Exhaust Symbol Q D A V I 2 r£ ^ 1 -•K ' (|l - 1 1 1 1 1 1 1 A 1 J ^ l . 1 L_ I I I 1 1 1 1 °W 1 (a) i ^ k T-1 i l l I C X ^ j M I - "i i i i r 800 1000 1200 y, mm Fig. 10. Gas composition profiles determined by probing through the nearfield port in the horizontal midplane (z = 500 m m ) in Trial 950516, Series 1-XBM2-F: (a) CH,, (b) O2. Burner parameters Dx = 6.35 m m , D2 = 19.05 m m , ft = 35°, ft = 10°. Key to data (for the exhaust gas, the range of the data is shown): x, mm 479 72r3 1078 1417 Exhaust Symbol O D A V 1 2 - 1 1 1 1 1 1 1 1 1 1 1 1 J - i _i 1 1 1 1 i (e) 1 1 1 1 1 1-1-1-1-r o u X Burner axis 1 1 1 1 1 1 i_ J L 0 200 400 600 800 1000 1200 y, mm 37 |