NR 440.19(6)(c)1.1. Methods 6, 7 and 3B of 40 CFR part 60, Appendix A, incorporated by reference in s. NR 440.17, as applicable, shall be used for the performance evaluations of sulfur dioxide and nitrogen oxides continuous monitoring systems. Acceptable alternative methods for Methods 6, 7 and 3B are given in sub. (7) (d). NR 440.19(6)(c)2.2. Sulfur dioxide or nitric oxide, as applicable, shall be used for preparing calibration gas mixtures under Performance Specification 2 of 40 CFR part 60, Appendix B, incorporated by reference in s. NR 440.17. NR 440.19(6)(c)3.3. For affected facilities burning fossil fuel, the span value for a continuous monitoring system measuring the opacity of emissions shall be 80, 90 or 100% and for a continuous monitoring system measuring sulfur oxides or nitrogen oxides the span value shall be determined as follows: in which:
x is the fraction of total heat input derived from gaseous fossil fuel
y is the fraction of total heat input derived from liquid fossil fuel
z is the fraction of total heat input derived from solid fossil fuel
NR 440.19(6)(c)4.4. All span values computed under subd. 3. for burning combinations of fossil fuels shall be rounded to the nearest 500 ppm. NR 440.19(6)(c)5.5. For a fossil-fuel-fired steam generator that simultaneously burns fossil fuel and nonfossil fuel, the span value of all continuous monitoring systems shall be subject to the department’s approval. NR 440.19(6)(e)(e) For any continuous monitoring system installed under par. (a), the conversion procedures of this paragraph shall be used to convert the continuous monitoring data into units of the applicable standards (ng/J, lb/million Btu). NR 440.19(6)(e)1.1. When a continuous monitoring system for measuring oxygen is selected, the measurement of the pollutant concentration and oxygen concentration shall each be on a consistent basis (wet or dry). Alternative procedures approved by the department shall be used when measurements are on a wet basis. When measurements are on a dry basis, the following conversion procedures shall be used: E = CF [20.9/(20.9 - percent O2)]
where E, C, F, and percent O2 are determined under par. (f).
NR 440.19(6)(e)2.2. When a continuous monitoring system for measuring carbon dioxide is selected, the measurement of the pollutant concentration and carbon dioxide concentration shall each be on a consistent basis (wet or dry) and the following conversion procedure shall be used: E = CFc [100/percent CO2]
where E, C, Fc and percent CO2 are determined under par. (f).
NR 440.19(6)(f)(f) The values used in the equations under par. (e) 1. and 2. are derived as specified in this paragraph. NR 440.19(6)(f)2.2. C is the pollutant concentration, ng/dscm (lb/dscf), determined by multiplying the average concentration (ppm) for each one-hour period by 4.15 × 104 M ng/dscm per ppm (2.59 × 10-9 M lb/dscf per ppm) where M is the pollutant molecular weight, g/g-mole (lb/lb-mole). M = 64.07 for sulfur dioxide and 46.01 for nitrogen oxides. NR 440.19(6)(f)3.3. %O2 or %CO2 is the oxygen or carbon dioxide volume expressed as percent, determined with equipment specified under par. (a). NR 440.19(6)(f)4.4. F, Fc are a factor representing a ratio of the volume of dry flue gases generated to the calorific value of the fuel combusted (F), and a factor representing a ratio of the volume of carbon dioxide generated to the calorific value of the fuel combusted (Fc), respectively. Values of Fc and F are: NR 440.19(6)(f)4.a.a. For anthracite coal as classified according to ASTM D388-99 (reapproved 2004), incorporated by reference in s. NR 440.17 (2) (a) 12., F = 2.723 x 10-7 dscm/J (10,140 dscf/million Btu) and Fc = 0.532 x 10-7 scm CO2/J (1,980 scf CO2/million Btu). NR 440.19(6)(f)4.b.b. For subbituminous and bituminous coal as classified according to ASTM D388-99 (reapproved 2004), incorporated by reference in s. NR 440.17 (2) (a) 12., F = 2.637 × 10-7 dscm/J (9,820 dscf/million Btu) and Fc = 0.486 × 10-7 scm CO2/J (1,810 scf CO2/million Btu). NR 440.19(6)(f)4.c.c. For liquid fossil fuels including crude, residual and distillate oils, F = 2.476 × 10-7 dscm/J (9,220 dscf/million Btu) and Fc = 0.384 × 10-7 scm CO2/J (1,430 scf CO2/million Btu). NR 440.19(6)(f)4.d.d. For gaseous fossil fuels, F = 2.347 × 10-7 dscm/J (8,740 dscf/million Btu). For natural gas, propane and butane fuels, Fc = 0.279 × 10-7 scm CO2/J (1,040 scf CO2/million Btu) for natural gas, 0.322 × 10-7 scm CO2/J (1,200 scf CO2/million Btu) for propane, and 0.338 × 10-7 scm CO2/J (1,260 scf CO2/million Btu) for butane. NR 440.19(6)(f)4.e.e. For bark, F = 2.589 × 10-7 dscm/J (9,640 dscf/million Btu) and Fc = 0.500 × 10-7 scm CO2/J (1,840 scf CO2/million Btu). For wood residue other than bark, F = 2.492 × 10-7 dscm/J (9,280 dscf/million Btu) and Fc = 0.494 × 10-7 scm CO2/J (1,860 scf CO2/million Btu). NR 440.19(6)(f)4.f.f. For lignite coal as classified according to ASTM D388-99 (reapproved 2004), incorporated by reference in s. NR 440.17 (2) (a) 12., F = 2.659 × 10-7 dscm/J (9900 dscf/million Btu) and Fc = 0.516 × 10-7 scm CO2/J (1,920 scf CO2/million Btu). NR 440.19(6)(f)5.5. The owner or operator may use the following equation to determine an F factor (dscm/J or dscf/million Btu) on a dry basis (if it is desired to calculate F on a wet basis, consult the department) or Fc factor (scm CO2/J, or scf CO2/million Btu) on either basis in lieu of the F or Fc factors specified in subd. 4.: NR 440.19(6)(f)5.a.a. H, C, S, N and O are content by weight of hydrogen, carbon, sulfur, nitrogen and oxygen (expressed as percent), respectively, as determined on the same basis as GCV by ultimate analysis of the fuel fired, using ASTM method D3178-89 or D3176-89 (solid fuels), or computed from results using ASTM method D1137-75, D1945-96 or D1946-90 (reapproved 1994) (gaseous fuels) as applicable. These 5 ASTM methods are incorporated by reference in s. NR 440.17 (2) (a) 43., 41., 16., 23. and 24., respectively.