Standard Operating Procedure (SOP) for Compliance Monitoring ...

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Correcting CEM readings to Oxygen Contents Specified by Emission Standards 1. Background It is common for concentration emissions standards to be corrected to a specific oxygen (O 2 ) concentration. When concentration emissions standards are corrected to a specified O 2 concentration, sources that otherwise would not meet the standard cannot simply comply by allowing more ambient air into the turbine exhaust stack. Instead, concentration readings must be adjusted to whatever specific O 2 level is specified in the standard. 1.1 Calculation Procedure Pollution concentrations are adjusted to the O 2 concentration specified in a standard according to Equation 1: (Eq. 1) Where Conc. i (Std. O 2 ) = the pollutant concentration at the O 2 level specified in the standard Conc. i (Measured O 2 ) = the pollutant concentration measured in the exhaust stack 20.9% = O 2 concentration in the atmosphere Std. O 2 % = O 2 concentration specified in the standard 1.2 Example Calculation Suppose the NO x standard for a gas-fired turbine is 70 mg/Nm 3 at 15% O 2 , and the measured value is 68 ppm at 17% O 2 . Does the turbine meet the emissions standard Where Conc. i (Std. O 2 ) = 68 ppm (20.9−15) ÷ (20.9−17) Conc. i (Std. O 2 ) = 68 ppm (1.51) Conc. i (Std. O 2 ) = 103 ppm at 15% O 2 . Therefore, the measured value does not meet the emissions standard. A4-1
Correcting CEM readings to Oxygen Contents Specified by Emission Standards Annex 5 Summary of Excess Emission Report (EER) for Gaseous Monitoring System Performance
Page 1 and 2: Standard Operating Procedure (SOP)
Page 3 and 4: SOP for Compliance Monitoring Using
Page 13 and 14: Annex 1 Application of the Continuo
Page 15 and 16: Application of the CEMS at Thermal
Page 31 and 32: Annex 2 Outline of a Continuous Emi
Page 33 and 34: Annex 3 Emissions Monitoring Report
Page 35 and 36: Emissions Monitoring Reports 2 17:0
Page 37 and 38: Emissions Monitoring Reports Annex
Page 39: Annex 4 Correcting CEM Readings to

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