2) Shut down all other sources of VOC and continue to exhaust fugitive emissions from the affected coating operation through any building ventilation system and other room exhausts such as drying ovens. All ventilation air shall be vented through stacks suitable for testing;
NR 440.71(4)(b)2.c.c. Operate the emission control device with all emission sources connected and operating; NR 440.71(4)(b)2.d.d. Determine the efficiency (E) of the control device using the following equation: NR 440.71(4)(b)2.e.e. Determine the efficiency (F) of the VOC capture system using the following equation: NR 440.71(4)(b)2.f.f. For each affected coating operation subject to sub. (3) (b) or (d), compliance is demonstrated if the product of (E)× (F) is equal to or greater than 0.93. NR 440.71(4)(b)2.g.g. For each affected coating operation subject to sub. (3) (c) 2., compliance is demonstrated if the product of (E) × (F) is equal to or greater than the fractional reduction demonstrated pursuant to par. (a) 1. prior to modification or reconstruction or 0.93, whichever is lower. NR 440.71(4)(b)2.h.h. For each affected coating operation subject to sub. (3) (c) 3., compliance is demonstrated if the value of E is greater than or equal to 0.95 and if the product of (E) × (F) is equal to or greater than the fractional reduction demonstrated pursuant to par. (a) 3. or 0.93, whichever is lower. NR 440.71(4)(b)3.3. To demonstrate compliance with sub. (3) (b), (c) 1. to 3. or (d), standards for coating operations, when a fixed-bed carbon adsorption system with individual exhaust stacks for each adsorber vessel is used to control emissions from an affected coating operation as well as from other sources of VOC, each owner or operator of an affected coating operation shall perform a gaseous emission test using the following procedures: NR 440.71(4)(b)3.a.a. Construct the overall VOC emission reduction system so that each volumetric flow rate and the total VOC emissions can be accurately determined by the applicable test methods and procedures specified in sub. (6) (b) to (g); NR 440.71(4)(b)3.b.b. Assure that all VOC emissions from the coating operation are segregated from other VOC sources and that the emissions can be captured for measurement, as described in subd. 2. b. 1) and 2); NR 440.71(4)(b)3.c.c. Operate the emission control device with all emission sources connected and operating; NR 440.71(4)(b)3.d.d. Determine the efficiency (Hv) of each individual adsorber vessel (v) using the following equation: NR 440.71(4)(b)3.e.e. Determine the efficiency of the carbon adsorption system (Hsys) by computing the average efficiency of the adsorber vessels as weighted by the volumetric flow rate (Qhv) of each individual adsorber vessel (v) using the following equation: NR 440.71(4)(b)3.f.f. Determine the efficiency (F) of the VOC capture system using Equation (3). NR 440.71(4)(b)3.g.g. For the affected coating operation subject to sub. (3) (b) or (d), compliance is demonstrated if the product of (Hsys) × (F) is equal to or greater than 0.93. NR 440.71(4)(b)3.h.h. For the affected coating operation subject to sub. (3) (c) 2., compliance is demonstrated if the product of (Hsys) × (F) is equal to or greater than the fractional reduction demonstrated pursuant to par. (a) 1. prior to modification or reconstruction or 0.93, whichever is lower. NR 440.71(4)(b)3.i.i. For each affected coating operation subject to sub. (3) (c) 3., compliance is demonstrated if the value of Hsys is greater than or equal to 0.95 and if the product of (Hsys)× (F) is equal to or greater than the fractional reduction demonstrated pursuant to par. (a) 3. or 0.93, whichever is lower. NR 440.71(4)(b)4.4. To demonstrate compliance with sub. (3) (b), (c) 1. to 3. or (d), standards for coating operations, when the VOC emissions from more than one affected coating operation are collected by a common capture system and are vented through a common duct to a control device that is also controlling emissions from nonaffected sources and the emissions from the nonaffected sources are vented separately from the affected coating operations, the owner or operator may: NR 440.71(4)(b)4.a.a. Consider the combined affected coating operations as single emission source; and NR 440.71(4)(b)4.b.b. Conduct a compliance test on this single source by the methods described in subd. 2. or 3., as applicable. NR 440.71(4)(b)5.5. An alternative method of demonstrating compliance with sub. (3) (b) or (d), standards for coating operations, and the sole method of demonstrating compliance with sub. (3) (c) 4., standards for modified or reconstructed coating operations, is the installation of a total enclosure around the coating operation and the ventilation of all VOC emissions from the total enclosure to a control device with the efficiency specified in par. (b) 5. c. 1) or 2), as applicable. If this method is selected, the compliance test methods described in par. (b) 1. to 4. are not required. Instead, each owner or operator of an affected coating operation shall: NR 440.71(4)(b)5.a.a. Demonstrate that a total enclosure is installed. An enclosure that meets the requirements in subd. 5. a. 1) to 4) shall be assumed to be a total enclosure. The owner or operator of an enclosed coating operation that does not meet the requirements may apply to the administrator for approval of the enclosure as a total enclosure on a case-by-case basis. The enclosure shall be considered a total enclosure if it is demonstrated to the satisfaction of the administrator that all VOC emissions from the affected coating operation are contained and vented to the control device. The requirements for automatic approval are as follows: 1) Total area of all natural draft openings may not exceed 5% of the total surface area of the total enclosure’s walls, floor and ceiling;
2) All sources of emissions within the enclosure shall be a minimum of 4 equivalent diameters away from each natural draft opening;
3) Average inward face velocity across all natural draft openings (FV) shall be a minimum of 3,600 meters per hour as determined by the following procedures: