p is the number of application methods used
3) Calculate the volume-weighted average mass of VOCs consumed per unit volume of coating solids applied (G) during the calendar month for each affected facility by the following equation: NR 440.48(4)(c)1.b.b. Calculate the volume-weighted average of VOC emissions to the atmosphere (N) during the calendar month for each affected facility by the following equation: N = G
NR 440.48(4)(c)1.c.c. Where the volume-weighted average mass of VOC discharged to the atmosphere per unit volume of coating solids applied (N) is less than or equal to 0.90 kilogram per liter, the affected facility is in compliance. NR 440.48(4)(c)1.d.d. If each individual coating used by an affected facility has a VOC content, as received, which when divided by the lowest transfer efficiency at which the coating is applied, results in a value equal to or less than 0.90 kilogram per liter, the affected facility is in compliance provided no VOCs are added to the coatings during distribution or application. NR 440.48(4)(c)2.2. An owner or operator shall use the following procedures for any affected facility that uses a capture system and a control device that destroys VOCs (e.g., incinerator) to comply with the emission limit specified under sub. (3). NR 440.48(4)(c)2.a.a. Determine the overall reduction efficiency (R) for the capture system and control device. For the initial performance test the overall reduction efficiency (R) shall be determined as prescribed in subd. 2. a. 1), 2) and 3). In subsequent months, the owner or operator may use the most recently determined overall reduction efficiency (R) for the performance test providing control device and capture system operating conditions have not changed. The procedure in subd. 2. a. 1), 2) and 3) shall be repeated when directed by the department or when the owner or operator elects to operate the control device or capture system at conditions different from the initial performance test. 1) Determine the fraction (F) of total VOCs emitted by an affected facility that enters the control device using the following equation: where:
n is the number of gas streams entering the control device
m is the number of gas streams emitted directly to the atmosphere
2) Determine the destruction efficiency of the control device (E) using values of the volumetric flow rate of each of the gas streams and the VOC content (as carbon) of each of the gas streams in and out of the device by the following equation: where:
n is the number of gas streams entering the control device
m is the number of gas streams leaving the control device and entering the atmosphere
3) Determine overall reduction efficiency (R) using the following equation: NR 440.48(4)(c)2.b.b. Calculate the volume-weighted average of the total mass of VOCs per unit volume of coating solids applied (G) during each calendar month for each affected facility using equations in subd. 1. a. 1), 2) and 3). NR 440.48(4)(c)2.c.c. Calculate the volume-weighted average of VOC emissions to the atmosphere (N) during each calendar month by the following equation: NR 440.48(4)(c)2.d.d. If the volume weighted average mass of VOCs emitted to the atmosphere for each calendar month (N) is less than or equal to 0.90 kilogram per liter of coating solids applied, the affected facility is in compliance. Each monthly calculation is a performance test. NR 440.48(4)(c)3.3. An owner or operator shall use the following procedure for any affected facility which uses a control device that recovers the VOCs (e.g., carbon adsorber) to comply with the applicable emission limit specified under sub. (3). NR 440.48(4)(c)3.a.a. Calculate the total mass of VOCs consumed and the volume-weighted average of the total mass of VOCs per unit volume of coating solids applied (G) during each calendar month for each affected facility using equations in subd. 1. a. 1), 2) and 3). NR 440.48(4)(c)3.b.b. Calculate the total mass of VOCs recovered during each calendar month using the following equation: NR 440.48(4)(c)3.c.c. Calculate overall reduction efficiency of the control device (R) for each calendar month for each affected facility using the following equation: NR 440.48(4)(c)3.d.d. Calculate the volume-weighted average mass of VOCs emitted to the atmosphere (N) for each calendar month for each affected facility using the equation in subd. 2. c. NR 440.48(4)(c)3.e.e. If the weighted average mass of VOCs emitted to the atmosphere for each calendar month (N) is less than or equal to 0.90 kilogram per liter of coating solids applied, the affected facility is in compliance. Each monthly calculation is a performance test. NR 440.48(5)(a)(a) The owner or operator of an affected facility which uses a capture system and an incinerator to comply with the emission limits specified under sub. (3) shall install, calibrate, maintain and operate temperature measurement devices according to the following procedures: NR 440.48(5)(a)1.1. Where thermal incineration is used, a temperature measurement device shall be installed in the firebox. Where catalytic incineration is used, a temperature measurement device shall be installed in the gas stream immediately before and after the catalyst bed.