Code of Maine Rules › 06 - DEPARTMENT OF ENVIRONMENTAL PROTECTION › 096 - DEPARTMENT OF ENVIRONMENTAL PROTECTION - GENERAL › Chapter 126 - CAPTURE EFFICIENCY TEST PROCEDURES › Section 096-126-1 - Definitions

Current through 2024-29, July 17, 2024
For purposes of this regulation, the following definitions
				  and abbreviations apply:
A.
Capture.
"Capture" means the containment or recovery of emissions from a
				process for direction into a duct which may be exhausted through a stack or
				sent to a control device.
B.
Capture system
. "Capture system" means all equipment (including, but not
				limited to, hoods, ducts, fans, booths, ovens, driers, etc.) used to contain,
				capture, or transport an air pollutant to a control device.
C.
Capture efficiency.
"Capture
				efficiency" means the weight per unit time of VOC entering a capture system and
				delivered to a control device divided by the weight per unit time of total VOC
				generated by a source of VOC, expressed as a percentage.
D.
Control device
. "Control
				device" means equipment (such as an incinerator or carbon adsorber) used to
				reduce, by destruction or removal, the amount of air pollutant(s) in an air
				stream prior to discharge to the ambient air.
E.
Control system.
"Control
				system" means a combination of one or more capture systems(s) and control
				devices working in concert to reduce discharges of pollutants to the ambient
				air.
F.
Destruction or
				removal efficiency.
"Destruction or removal efficiency" means the
				efficiency, expressed as a decimal fraction, of a control device in destroying
				or removing contaminants calculated as one minus the ratio of the amount of VOC
				exiting the control device to the amount of VOC entering the control
				device.
G.
Gas/gas
				method.
"Gas/gas method" means either of two methods for determining
				capture which rely only on gas phase measurements. One method requires
				construction of a temporary total enclosure (TTE) to assure all would be
				fugitive emissions are measured while the other method uses the room or
				building which houses the emission source as an enclosure.
H.
Hood.
"Hood" means a partial
				enclosure or canopy for capturing and exhausting, by means of a draft, the
				organic vapors or other fumes rising from a coating process or other
				source.
I.
Liquid/gas
				method.
"Liquid/gas method" means either of two methods for determining
				capture which require both gas phase and liquid phase measurements and
				analysis. One liquid/gas method requires construction of a temporary enclosure,
				the other uses the building or room which houses the facility as an
				enclosure.
J.
Overall
				emission reduction efficiency
. "Overall emission reduction efficiency"
				means the weight per unit time of VOC removed by a control device divided by
				the weight per unit time of VOC emitted by an emission source expressed as a
				percentage. The overall emission reduction efficiency is the product of the
				capture efficiency and the control equipment destruction or removal
				efficiency.
K.
PTE
.
				"PTE" means a permanent total enclosure, which contains a process that emits
				VOC and meets the specifications given in Procedure T.
L.
TTE.
"TTE" means a temporary
				total enclosure which is built around a process that emits VOC and meets the
				specifications given in Procedure T.
M.
BE.
"BE" means a building or
				room enclosure that contains a process that emits VOC. If a BE is to serve as a
				PTE or TTE, the appropriate requirements given in Procedure T must be
				met.