You may calculate percent reduction using any of the methods in paragraphs (a) through (d) of this section.
(a) Compliant line option. If all of your wet-out areas have PTE that meet the requirements of EPA Method 204 of appendix M of 40 CFR part 51, and all of your wet-out area organic HAP emissions and oven organic HAP emissions are vented to an add-on control device, use Equation 1 of this section to demonstrate compliance. In all other situations, use Equation 2 of this section to demonstrate compliance. [GRAPHIC] [TIFF OMITTED] TR25AU05.017 Where: PR=percent reduction;Inlet+HAP emissions entering the control device, lbs per year;Outlet=HAP emissions existing the control device to the atmosphere, lbs
per year.
[GRAPHIC] [TIFF OMITTED] TR25AU05.018
Where: PR=percent reduction;WAEici = wet-out area organic HAP emissions, lbs per year,
vented to a control device;WAEiu = wet-out area organic HAP emissions, lbs per year, not
vented to a control device;Oju = oven organic HAP emissions, lbs per year, not vented to
a control device;Ojci = oven organic HAP emissions, lbs per year, vented to a
control device;WAEico = wet-out area organic HAP emissions, lbs per year,
from the control device outlet;Ojco = oven organic HAP emissions, lbs per year, from the
control device outlet.
(b) Averaging option. Use Equation 3 of this section to calculate percent reduction.[GRAPHIC] [TIFF OMITTED] TR25AU05.019 Where: PR=percent reduction;WAEici = wet-out area organic HAP emissions from wet-out area
i, lbs per year, sent to a control device;WAEiu = wet-out area organic HAP emissions from wet-out area
i, lbs per year, not sent to a control device;WAEico = wet-out area organic HAP emissions from wet-out area
i, lbs per year, at the outlet of a control device;Oju = organic HAP emissions from oven j, lbs per year, not
sent to a control device;Ojci = organic HAP emissions from oven j, lbs per year, sent
to a control device;Ojco = organic HAP emissions from oven j, lbs per year, at
the outlet of the control device;m=number of wet-out areas;n=number of ovens.
(c) Add-on control device option. Use Equation 1 of this section to calculate percent reduction.
(d) Combination option. Use Equations 1 through 3 of this section, as applicable, to calculate percent reduction. [70 FR 50127, Aug. 25, 2005]