| (D) the amount specified in the major source definition
contained in the Prevention of Significant Deterioration of Air Quality
regulations promulgated by the United States Environmental Protection
Agency in 40 Code of Federal Regulations §52.21 as amended June
3, 1993 (effective June 3, 1994), and is located in Atascosa, Bastrop,
Bexar, Brazos, Calhoun, Cherokee, Comal, Fannin, Fayette, Freestone,
Goliad, Gregg, Grimes, Harrison, Hays, Henderson, Hood, Hunt, Lamar,
Limestone, Marion, McLennan, Milam, Morris, Nueces, Red River, Robertson,
Rusk, Titus, Travis, Victoria, or Wharton County.
(30) Maximum rated capacity--The maximum design heat
input, expressed in million British thermal units per hour, unless:
(A) the unit is a boiler, utility boiler, or process
heater operated above the maximum design heat input (as averaged over
any one-hour period), in which case the maximum operated hourly rate
must be used as the maximum rated capacity; or
(B) the unit is limited by operating restriction or
permit condition to a lesser heat input, in which case the limiting
condition must be used as the maximum rated capacity; or
(C) the unit is a stationary gas turbine, in which
case the manufacturer's rated heat consumption at the International
Standards Organization (ISO) conditions must be used as the maximum
rated capacity, unless limited by permit condition to a lesser heat
input, in which case the limiting condition must be used as the maximum
rated capacity; or
(D) the unit is a stationary, internal combustion engine,
in which case the manufacturer's rated heat consumption at Diesel
Equipment Manufacturer's Association or ISO conditions must be used
as the maximum rated capacity, unless limited by permit condition
to a lesser heat input, in which case the limiting condition must
be used as the maximum rated capacity.
(31) Megawatt (MW) rating--The continuous MW output
rating or mechanical equivalent by a gas turbine manufacturer at International
Standards Organization conditions, without consideration to the increase
in gas turbine shaft output and/or the decrease in gas turbine fuel
consumption by the addition of energy recovered from exhaust heat.
(32) Nitric acid--Nitric acid that is 30% to 100% in
strength.
(33) Nitric acid production unit--Any source producing
nitric acid by either the pressure or atmospheric pressure process.
(34) Nitrogen oxides (NOX )--The
sum of the nitric oxide and nitrogen dioxide in the flue gas or emission
point, collectively expressed as nitrogen dioxide.
(35) Parts per million by volume (ppmv)--All ppmv emission
specifications specified in this chapter are referenced on a dry basis.
When required to adjust pollutant concentrations to a specified oxygen
(O2) correction basis, the following
equation must be used.
Attached Graphic
(36) Peaking gas turbine or engine--A stationary gas
turbine or engine used intermittently to produce energy on a demand
basis.
(37) Plant-wide emission rate--The ratio of the total
actual nitrogen oxides mass emissions rate discharged into the atmosphere
from affected units at a major source when firing at their maximum
rated capacity to the total maximum rated capacities for those units.
(38) Plant-wide emission specification--The ratio of
the total allowable nitrogen oxides mass emissions rate dischargeable
into the atmosphere from affected units at a major source when firing
at their maximum rated capacity to the total maximum rated capacities
for those units.
(39) Predictive emissions monitoring system (PEMS)--The
total equipment necessary for the continuous determination and recordkeeping
of process gas concentrations and emission rates using process or
control device operating parameter measurements and a conversion equation
or computer program to produce results in units of the applicable
emission limitation.
(40) Process heater--Any combustion equipment fired
with liquid and/or gaseous fuel that is used to transfer heat from
combustion gases to a process fluid, superheated steam, or water for
the purpose of heating the process fluid or causing a chemical reaction.
The term "process heater" does not apply to any unfired waste heat
recovery heater that is used to recover sensible heat from the exhaust
of any combustion equipment, or to boilers as defined in this section.
(41) Pyrolysis reactor--A unit that produces hydrocarbon
products from the endothermic cracking of feedstocks such as ethane,
propane, butane, and naphtha using combustion to provide indirect
heating for the cracking process.
(42) Reheat furnace--A furnace that is used in the
manufacturing, casting, or forging of metal to raise the temperature
of that metal in the course of processing to a temperature suitable
for hot working or shaping.
(43) Rich-burn engine--A spark-ignited, Otto cycle,
four-stroke, naturally aspirated or turbocharged engine that is capable
of being operated with an exhaust stream oxygen concentration equal
to or less than 0.5% by volume, as originally designed by the manufacturer.
(44) Small utility system--All boilers, auxiliary steam
boilers, and stationary gas turbines that are located in the Dallas-Fort
Worth eight-hour ozone nonattainment area, and were part of one electric
power generating system on January 1, 2000, that had a combined electric
generating capacity less than 500 megawatts.
(45) Stationary gas turbine--Any gas turbine system
that is gas and/or liquid fuel fired with or without power augmentation.
This unit is either attached to a foundation or is portable equipment
operated at a specific minor or major source for more than 90 days
in any 12-month period. Two or more gas turbines powering one shaft
must be treated as one unit.
(46) Stationary internal combustion engine--A reciprocating
engine that remains or will remain at a location (a single site at
a building, structure, facility, or installation) for more than 12
consecutive months. Included in this definition is any engine that,
by itself or in or on a piece of equipment, is portable, meaning designed
to be and capable of being carried or moved from one location to another.
Indicia of portability include, but are not limited to, wheels, skids,
carrying handles, dolly, trailer, or platform. Any engine (or engines)
that replaces an engine at a location and that is intended to perform
the same or similar function as the engine being replaced is included
in calculating the consecutive residence time period. An engine is
considered stationary if it is removed from one location for a period
and then returned to the same location in an attempt to circumvent
the consecutive residence time requirement. Nonroad engines, as defined
in 40 Code of Federal Regulations §89.2, are not considered stationary
for the purposes of this chapter.
(47) System-wide emission rate--The ratio of the total
actual nitrogen oxides mass emissions rate discharged into the atmosphere
from affected units in an electric power generating system or portion
thereof located within a single ozone nonattainment area when firing
at their maximum rated capacity to the total maximum rated capacities
for those units. For fuel oil firing, average activity levels must
be used in lieu of maximum rated capacities for the purpose of calculating
the system-wide emission rate.
(48) System-wide emission specification--The ratio
of the total allowable nitrogen oxides mass emissions rate dischargeable
into the atmosphere from affected units in an electric power generating
system or portion thereof located within a single ozone nonattainment
area when firing at their maximum rated capacity to the total maximum
rated capacities for those units. For fuel oil firing, average activity
levels must be used in lieu of maximum rated capacities for the purpose
of calculating the system-wide emission specification.
(49) Thirty-day rolling average--An average, calculated
for each day that fuel is combusted in a unit, of all the hourly emissions
data for the preceding 30 days that fuel was combusted in the unit.
(50) Twenty-four hour rolling average--An average,
calculated for each hour that fuel is combusted (or acid is produced,
for a nitric or adipic acid production unit), of all the hourly emissions
data for the preceding 24 hours that fuel was combusted in the unit.
(51) Unit--A unit consists of either:
(A) for the purposes of §§117.105, 117.305,
117.405, 117.1005, and 117.1205 of this title (relating to Emission
Specifications for Reasonably Available Control Technology (RACT))
and each requirement of this chapter associated with §§117.105,
117.305, 117.405, 117.1005, and 117.1205 of this title, any boiler,
process heater, stationary gas turbine, or stationary internal combustion
engine, as defined in this section;
Cont'd... |
