Section 465.03. Symbols.

  The symbols used in this subchapter have the following meanings:

(1)  "ac" means after the control system is installed and operated.

(2)  "A k " is the area of each natural draft opening k in a total enclosure, in square meters.

(3)  "bc" means before control.

(4)  "C aj " is the concentration of VHAP in gas stream j exiting the control device, in parts per million by volume.

(5)  "C bi " is the concentration of VHAP in gas stream i entering the control device, in parts per million by volume.

(6)  "C c " is the VHAP content of a finishing material c in kilograms of VHAP per kilogram of coating solids (kg VHAP/kg solids), as supplied. Also given in pounds of VHAP per pound of coating solids (lb VHAP/lb solids).

(7)  "C di " is the concentration of VHAP in gas stream i entering the control device from the affected source, in parts per million by volume.

(8)  "C fk " is the concentration of VHAP in uncontrolled gas stream k emitted directly to the atmosphere from the affected source, in parts per million by volume.

(9)  "E" is the emission limit achieved by an emission point or a set of emission points, in kg VHAP/kg solids (lb VHAP/lb solids).

(10)  "F" is the control device efficiency, expressed as a fraction.

(11)  "FV" is the average inward face velocity across all natural draft openings in a total enclosure, in meters per hour.

(12)  "G" is the VHAP content of a contact adhesive, in kg VHAP/kg solids (lb VHAP/lb solids), as applied.

(13)  "M c " is the mass of solids in finishing material c used monthly, kg solids/month (lb solids/month).

(14)  "N" is the capture efficiency, expressed as a fraction.

(15)  "Q aj " is the volumetric flow rate of gas stream j exiting the control device, in dry standard cubic meters per hour.

(16)  "Q bi " is the volumetric flow rate of gas stream i entering the control device, in dry standard cubic meters per hour.

(17)  "Q di " is the volumetric flow rate of gas stream i entering the control device from the emission point, in dry standard cubic meters per hour.

(18)  "Q fk " is the volumetric flow rate of uncontrolled gas stream k emitted directly to the atmosphere from the emission point, in dry standard cubic meters per hour.

(19)  "Q in i " is the volumetric flow rate of gas stream i entering the total enclosure through a forced makeup air duct, in standard cubic meters per hour, wet basis.

(20)  "Q out j " is the volumetric flow rate of gas stream j exiting the total enclosure through an exhaust duct or hood, in standard cubic meters per hour, wet basis.

(21)  "R" is the overall efficiency of the control system, expressed as a percentage.

(22)  "S" is the VHAP content of a solvent, expressed as a weight fraction, added to finishing materials.

(23)  "W" is the amount of solvent, in kilograms (pounds), added to finishing materials during the monthly averaging period.

History: CR 00-160 : cr. Register August 2001 No. 548 , eff. 9-1-01; CR 03-037 : am. (intro.) Register March 2004 No. 579 , eff. 4-1-04.