Where:
E = Emission rate of NOX from the duct burner, ng/J (lb/MWh) gross energy output;
Csg = Average hourly concentration of NOX exiting the steam generating unit, ng/dscm (lb/dscf);
Cte = Average hourly concentration of NOX in the turbine exhaust upstream from duct burner, ng/dscm (lb/dscf);
Qsg = Average hourly volumetric flow rate of exhaust gas from steam generating unit, dscm/h (dscf/h);
Qte = Average hourly volumetric flow rate of exhaust gas from combustion turbine, dscm/h (dscf/h);
Osg = Average hourly gross energy output from steam generating unit, J/h (MW); and
h = Average hourly fraction of the total heat input to the steam generating unit derived from the combustion of fuel in the affected duct burner.
Where:
E = Emission rate of NOX from the duct burner, ng/J (lb/MWh) gross energy output;
Csg = Average hourly concentration of NOX exiting the steam generating unit, ng/dscm (lb/dscf);
Qsg = Average hourly volumetric flow rate of exhaust gas from steam generating unit, dscm/h (dscf/h); and
Occ = Average hourly gross energy output from entire combined cycle unit, J/h (MW).
Where:
E = Emission rate of NOX from the duct burner, ng/J (lb/MWh) gross energy output;
ERsg = Average hourly emission rate of NOX exiting the steam generating unit heat input calculated using appropriate F factor as described in Method 19 of appendix A of this part, ng/J (lb/MMBtu);
Hcc = Average hourly heat input rate of entire combined cycle unit, J/h (MMBtu/h); and
Occ = Average hourly gross energy output from entire combined cycle unit, J/h (MW).
40 C.F.R. §60.48Da