OCR Text |
Show Table 3. Compostion and combustion properties of the Western Canadian natural gas fuel Molar mass: 16.83 kg/kmol. Average fuel molecule: Q 015H3.975N0.032Ou.0u- Stoichiometric air/fuel ratio: 16.45 kg/kg or 9.56 kmol/kmol, based on dry air Standard specific enthalpy of combustion: 47.78 MJ/kg. Molar mass of ideal products of stoichiometric combustion: 27.77 kg/kmol / N2 CO2 CH4 C2H6 C3H8 C4H10 C5H12 C^H^ x„ m o l e % 1.61 0.57 95.10 2.50 0.20 0.042 0010 0.004 Table 4. Summary of combustion chamber, heat sink (chamber floor) and burner configurations for the trials conducted. Explanation of series: 1-XBM1: Single-burner trials with the X B M 1 burner and a tunnel chamber or the full furnace 1-XBM2-T: 3-XBM2-F: 1-XBM2-F Series Single-burner trials with anX B M 2 burner and a 1u nnel chamber Three-burner trials with X B M 2 burners and the full furnace chamber Single-burner trials with an X B M 2 burner and the full furnace chamber (in these trials, the gas composition field was Chamber8, m xm xm 1-XBM1-T/F 3 x 1 x 1 1-XBM2-T 3-XBM2-F 1-XBM2-F 3x1.5x1 3x4.5x1 3x1.5x1 3x4.5x1 3x4.5x1 Bare floor, m2(%bare) 0 0.75 3 0 0 1.5 13.5 0 1 1 3 4 6 9 0 1 3b (0) (25) (100) (0) (0) (11.1) (100) (0) (7.4) (7.4) (22.2) (29.6) (44.4) (66.7) (0) (7.4) (18.2b) A, mm 6.22 6.35 6.35 6.35 D2, mm 18.42 15.87 19.05 25.40 19.05 19.05 probed) ft, deg 65 35 30 35 42.5 35 65 35 35 Trials 940202, 940204, 940209, 940214,940216 940216 940209, 940214 931215,940225 940222 940303 940301 950131,950203 950210,950215 950206 950213 950208 950316 950314 950324 950328 950323 950320,950321,950322 950607, 950610 950601, 950613 950516,950615 *The (x, y, z) dimensions of the generally rectangular combustion chamber bThe nearfield traverse rig w as deployed in this case, presenting 3 rrf of additional cold sink. The total sink area was then bare. 32 |