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Show 12 Table 3. SOc CO, and total hydrocarbon (THC) emission factors and suNur balance. Rice Waste Wood Humus Straw Paper Wood Blend S02 emission factor (% dry fuel) l/J = 0.30 l/J = 0.85 Sulfur balance Fuel sulfur (0;0 dry fuel) S in S02 (0;0 dry fuel) l/J = 0.30 l/J = 0.85 S02 SlFuel S (%) l/J = 0.30 l/J = 0.85 CO emission factor (% dry fuel) l/J = 0.30 l/J = 0.85 THC (emission factor as CH4, % dry fuel) l/J = 0.30 l/J = 0.85 • not measured t below detection limit (- 1 ppmv) 0.2 0.5 0.39 0.1 0.25 26 64 0.25 b • a analyzer range exceeded, extrapolated beyond l/J = 0.8. b analyzer range exceeded at l/J = 0.6, not extrapolated. 0.002 0.035 0.1 0.001 0.0175 1 18 0.02 0.3c 0.01 0.01 • 0.11 O.OOS 5 0.08 o.os C l/J = 0.87, emission factor increases rapidly above l/J = 0.85, see Rg. 5. --t 0.005 0.006 --t 0.003 --t 42 0.02 0.45 --t 0.04 --t 0.15 0.08 --t 0.075 --t 94 0.05 0.8a --t 0.6 S02, CO, and THC emissions are summarized in Table 3. Included in the table is a sulfur balance yielding the sulfur conversion fraction for each fuel. For all fuels except humus, the S02 emissions were quite low at the lower equivalence ratio. At the higher equivalence ratio, the conversion was high, except rice straw, for which the conversion was only 18%. The wood-wheat straw blend exhibited a conversion of 94%. The CO and hydrocarbon data are more sparse due to instrument limitations, but are consistent with stoichiometric influences on emission levels. Unique was the high CO emission (and likely the THe emission as well) with humus at low equivalence ratio. The emission factor was 3 to 12 times larger than for the other fuels at l/J = 0.30. The |
