La. Admin. Code tit. 33 § III-2158

Current through Register Vol. 50, No. 12, December 20, 2024

Section III-2158 - Specific Requirements

A. The capture efficiency of a process line shall be measured using one of the four protocols given in Subsection C of this Section.

B. Any error margin associated with a test protocol may not be incorporated into the results of a capture efficiency test.

C. Any affected source must use one of the following four protocols to measure capture efficiency, unless a suitable alternative protocol is approved by the administrative authority*.

1. Gas/Gas Method Using TTE. The specifications to determine whether a temporary enclosure is considered a TTE are given in 40 CFR, Part 51, Appendix M, Method 204, Section 5. The capture efficiency equation to be used for this protocol is:

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CE = capture efficiency, decimal fraction

Gw = mass of VOC captured and delivered to control device using a TTE

Fw = mass of fugitive VOC that escapes from a TTE

NOTE: 40 CFR, Part 51, Appendix M, Method 204C, Section 9 is used to obtain Gw. 40 CFR, Part 51, Appendix M, Method 204D, Section 9 is used to obtain Fw.

2. Liquid/Gas Method Using TTE. The specifications to determine whether a temporary enclosure is considered a TTE are given in 40 CFR, Part 51, Appendix M, Method 204, Section 5. The capture efficiency equation to be used for this protocol is:

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CE = capture efficiency, decimal fraction

L = mass of liquid VOC input to process

F = mass of fugitive VOC that escapes from a TTE

NOTE: 40 CFR, Part 51, Appendix M, Method 204, Section A.10 is used to obtain L. 40 CFR, Part 51, Appendix M, Method 204D, Section 9 is used to obtain F.

3. Gas/Gas Method Using the Building or Room (BE) in which the Affected Source is Located as the Enclosure and in which G and F are Measured while Operating only the Affected Facility. All fans and blowers in the building or room must be operated as they would under normal production. The capture efficiency equation to be used for this protocol is:

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CE = capture efficiency, decimal fraction

G = mass of VOC captured and delivered to a control device

F_B = mass of fugitive VOC that escapes from building enclosure

NOTE: 40 CFR, Part 51, Appendix M, Method 204C, Section 9 is used to obtain G. 40 CFR, Part 51, Appendix M, Method 204E, Section 9 is used to obtain F_B.

4. Liquid/Gas Method Using the Building or Room (BE) in which the Affected Source is Located as the Enclosure and in which L and F are Measured while Operating only the Affected Facility. All fans and blowers in the building or room must be operated as they would under normal production. The capture efficiency equation to be used for this protocol is:

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CE = capture efficiency, decimal fraction

L = mass of liquid VOC input to process

F_B = mass of fugitive VOC that escapes from building enclosure

La. Admin. Code tit. 33, § III-2158

Promulgated by the Department of Environmental Quality, Office of Air Quality and Radiation Protection, Air Quality Division, LR 17:653 (July 1991), amended LR 22:1212 (December 1996), LR 23:1679 (December 1997), amended by the Office of Environmental Assessment, Environmental Planning Division, LR 27:1223 (August 2001).

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2054.

NOTE: 40 CFR, Part 51, Appendix M, Method 204, Section A.10 is used to obtain L. 40 CFR, Part 51, Appendix M, Method 204E, Section 9 is used to obtain F_B.