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Show Exhaust gas TTTTTTTTTT ttTtttttttt TtttttttTtT 3 J5» _ zrJ5 B: m ! 1 § M * #1 L:;.LJ MPa Mint $3&ft SO Mt ~£f t i R u - - JE••; & 8 lttB|«M«RV| (a) (b) rTTTTTtTT TttTTTTTI (C) -»c -KI -+C &*>ll4i S3 * $ | H «M* m jj^i. -•c gj W u u a L.: E2 E^l L^_J r.'-' ••' * (d) (e) Fig.4. Sink exposure in the Series 3-XBM2-F three-burner trials. The shaded sink panels were covered with blanket insulation 25 m m thick. The coverages are: (a) Trials 950314 and 950316: 1 m 2 bare, 12.5 m 2 covered (b) Tnal 950324: 3 m 2 bare, 10.5 m 2 covered (c) Tnal 950328: 4 m 2 bare, 9.5 m 2 covered (d) Tnal 950323: 6 m2bare, 7.5 m 2 covered (e) Trials 950320, 950321 and 950322: 9 m 2 bare, 4.5 m 2 covered 50 40 30 20 - E CX 1 1 - - 1 1 1 1 A / 1 1 1 / i 1 L •••'' °xf I \A/ - - 1 E Q-CL O z x0i,% Fig. 5. The NO* level in the exhaust gases as a function of the O2 level, with combustion air temperature as the parameter, for Trials 950210 and 950215, Series 1-XBM2-T single-burner trials Burner parameters: D\ - 6.35 m m , D2 = 19.05 m m, ft = 30°, ft = 10°. Firing rate: 289-368 kW. Pilot burner: on. Key to data: Symbol: Trial 950210 • • A T Tnal 950215 + X 0 • 0 A V Range of Ta,°C 193-212 232-255 281-312 325-334 336-349 353-363 368-383 Median Ta,°C 202 243 296 330 342 358 375 Fig. 6. The N O * level in the exhaust gases, adjusted to Ta = 400 °C and X0i = 3 %, as a function of the firing rate in the Series 1-XBM2-T single-burner trials. Fixed burner parameters: Dx = 6.35 m m , ft = 10°. Key to data: Symbol • , • D O A Trials 950210*, 950215* 950213 950131 950206 950208 D2, mm 19.05 19.05 15.88 19.05 24.31 fl,deg 30 42.5 35 35 35 m0(-Mc°25.),W 35 *The dotted line in the top graph represents the curve through the data in the bottom one. |