For fluorinated gas production and transformation processes, you must calculate the fluorinated GHG emissions from each process using the emission factor or emission calculation factor method specified in paragraphs (c), (d), and (e) of this section, as appropriate. For destruction processes that destroy fluorinated GHGs that were previously "produced" as defined at § 98.410(b) , you must calculate emissions using the procedures in paragraph (f) of this section. For venting of residual gas from containers (e.g., cylinder heels), you must calculate emissions using the procedures in paragraph (g) of this section.
Where:
EContPV = Mass of fluorinated GHG f emitted from process vent v from process i, operating scenario j, during the emission test during test run r (kg/hr).
CPV = Concentration of fluorinated GHG f during test run r of the emission test (ppmv).
MW = Molecular weight of fluorinated GHG f (g/g-mole).
QPV = Flow rate of the process vent stream during test run r of the emission test (m3/min).
SV = Standard molar volume of gas (0.0240 m3/g-mole at 68 °F and 1 atm).
1/103 = Conversion factor (1 kilogram/1,000 grams).
60/1 = Conversion factor (60 minutes/1 hour).
Where:
EFPV = Emission factor for fluorinated GHG f emitted from process vent v during process i, operating scenario j (e.g., kg emitted/kg activity).
EPV = Mass of fluorinated GHG f emitted from process vent v from process i, operating scenario j, during the emission test during test run r, for either continuous or batch (kg emitted/hr for continuous, kg emitted/batch for batch).
ActivityEmissionTest = Process feed, process production, or other process activity rate for process i, operating scenario j, during the emission test during test run r (e.g., kg product/hr).
r = Number of test runs performed during the emission test.
Where:
EPV = Mass of fluorinated GHG f emitted from process vent v from process i, operating scenario j, for the year (kg).
EFPV-C = Emission factor for fluorinated GHG f emitted from process vent v during process i, operating scenario j, based on testing after the destruction device (kg emitted/activity) (e.g., kg emitted/kg product).
ActivityC = Total process feed, process production, or other process activity for process i, operating scenario j, during the year for which emissions are vented to the properly functioning destruction device (i.e., controlled).
ECFPV-U = Emission calculation factor for fluorinated GHG f emitted from process vent v during process i, operating scenario j during periods when the process vent is not vented to the properly functioning destruction device (kg emitted/activity) (e.g., kg emitted/kg product).
ActivityU = Total process feed, process production, or other process activity during the year for which the process vent is not vented to the properly functioning destruction device (e.g., kg product).
where:
EPV = Mass of fluorinated GHG f emitted from process vent v from process i, operating scenario j, for the year, considering destruction efficiency (kg).
EFPV-U = Emission factor (uncontrolled) for fluorinated GHG f emitted from process vent v during process i, operating scenario j (kg emitted/kg product).
ActivityU = Total process feed, process production, or other process activity for process i, operating scenario j, during the year for which the process vent is not vented to the properly functioning destruction device (e.g., kg product).
ActivityC = Total process feed, process production, or other process activity for process i, operating scenario j, during the year for which the process vent is vented to the properly functioning destruction device (e.g., kg product).
DE = Demonstrated destruction efficiency of the destruction device (weight fraction).
where:
EFPVadj = Adjusted process-vent-specific emission factor for an untested operating scenario.
ECFUT = Emission calculation factor for the untested operating scenario developed under paragraph (c)(4) of this section.
ECFT = Emission calculation for the tested operating scenario developed under paragraph (c)(4) of this section.
EFPV = Process vent specific emission factor for the tested operating scenario.
where:
EPfi = Mass of fluorinated GHG f emitted from process vents for process i for the year (kg).
EPV = Mass of fluorinated GHG f emitted from process vent v from process i, operating scenario j, for the year, considering destruction efficiency (kg).
v = Number of process vents in process i, operating scenario j.
o = Number of operating scenarios for process i.
where:
ECFPV = Emission calculation factor for fluorinated GHG f emitted from process vent v during process i, operating scenario j, (e.g., kg emitted/kg product).
EPV = Average mass of fluorinated GHG f emitted, based on calculations, from process vent v from process i, operating scenario j, during the period or batch for which emissions were calculated, for either continuous or batch (kg emitted/hr for continuous, kg emitted/batch for batch).
ActivityRepresentative = Process feed, process production, or other process activity rate corresponding to average mass of emissions based on calculations (e.g., kg product/hr for continuous, kg product/batch for batch).
where:
EPV = Mass of fluorinated GHG f emitted from process vent v from process i, operating scenario j, for the year (kg).
ECFPV = Emission calculation factor for fluorinated GHG f emitted from process vent v during process i, operating scenario j, (kg emitted/activity) (e.g., kg emitted/kg product).
Activity = Process feed, process production, or other process activity for process i, operating scenario j, during the year.
where:
EPV = Mass of fluorinated GHG f emitted from process vent v from process i, operating scenario j, for the year considering destruction efficiency (kg).
ECFPV = Emission calculation factor for fluorinated GHG f emitted from process vent v during process i, operating scenario j, (e.g., kg emitted/kg product).
ActivityU = Total process feed, process production, or other process activity for process i, operating scenario j, during the year for which the process vent is not vented to the properly functioning destruction device (e.g., kg product).
ActivityC = Total process feed, process production, or other process activity for process i, operating scenario j, during the year for which the process vent is vented to the properly functioning destruction device (e.g., kg product).
DE = Demonstrated destruction efficiency of the destruction device (weight fraction).
where:
EPfi = Mass of fluorinated GHG f emitted from process vents for process i for the year (kg).
EPV = Mass of fluorinated GHG f emitted from process vent v from process i, operating scenario j, for the year, considering destruction efficiency (kg).
v = Number of process vents in process i, operating scenario j.
o = Number of operating scenarios in process i.
where:
Ei = Total mass of each fluorinated GHG f emitted from process i, annual basis (kg/year).
EPfi = Mass of fluorinated GHG f emitted from all process vents and all operating scenarios in process i, annually (kg/year, calculated in Equation L-24 or L-28 of this section, as appropriate).
EELfi = Mass of fluorinated GHG f emitted from equipment leaks for pieces of equipment for process i, annually (kg/year, calculated in paragraph (d)(3) of this section).
where:
E = Total mass of each fluorinated GHG f emitted from all fluorinated gas production processes, all transformation processes that transform fluorinated gases produced at the facility, or all transformation processes that transform fluorinated gases produced at another facility, as appropriate (metric tons).
Ei = Total mass of each fluorinated GHG f emitted from each production or transformation process, annual basis (kg/year, calculated in Equation L-29 of this section).
0.001 = Conversion factor from kg to metric tons.
z = Total number of fluorinated gas production processes, fluorinated gas transformation processes that transform fluorinated gases produced at the facility, or transformation processes that transform fluorinated gases produced at another facility, as appropriate.
where:
ED = The mass of fluorinated GHGs emitted annually from destruction of fluorinated GHGs that were previously "produced" as defined at § 98.410(b) (metric tons).
RED = The mass of fluorinated GHGs that were previously "produced" as defined at § 98.410(b) and that are fed annually into the destruction device (metric tons).
DE = Destruction efficiency of the destruction device (fraction).
Where:
ECf = Total mass of each fluorinated GHG f emitted from the facility through venting of residual fluorinated GHG from containers, annual basis (metric tons/year).
HBfj = Mass of residual fluorinated GHG f in container j when received by facility (metric tons).
HEfj = Mass of residual fluorinated GHG f in container j after evacuation by facility (metric tons). (Facility may equate to zero.)
n = Number of vented containers for each fluorinated GHG f.
Where:
mR = Mass of residual gas in the container (metric ton).
p = Absolute pressure of the gas (Pa).
V = Volume of the gas (m3).
MW = Molecular weight of the fluorinated GHG f (g/gmole).
Z = Compressibility factor.
R = Gas constant (8.314 Pa m3/Kelvin mole).
T = Absolute temperature (K).
106 = Conversion factor (106 g/metric ton).
Where:
ECf = Total mass of each fluorinated GHG f emitted from the facility through venting of residual fluorinated GHG from containers, annual basis (metric tons/year).
hfj = Facility-wide gas-specific heel factor for fluorinated GHG f (fraction) and container size and type j, as determined in paragraph (g)(2)(iii) of this section.
Nfj = Number of containers of size and type j returned to the fluorinated gas production facility.
Ffj = Full capacity of containers of size and type j containing fluorinated GHG f (metric tons).
n = Number of combinations of container sizes and types for fluorinated GHG f.
Where:
DEEffective = Effective destruction efficiency for process i (fraction).
EPVf = Mass of fluorinated GHG f emitted from process vent v from process i, operating scenario j, for the year, calculated in Equation L-21, L-22, L-26, or L-27 of this section (kg).
GWPf = Global warming potential for each greenhouse gas from Table A-1 of subpart A of this part.
ECFPV-Uf = Emission calculation factor for fluorinated GHG f emitted from process vent v during process i, operating scenario j during periods when the process vent is not vented to the properly functioning destruction device, as used in Equation L-21; or emission calculation factor for fluorinated GHG f emitted from process vent v during process i, operating scenario j, as used in Equation L-26 or L-27 (kg emitted/activity) (e.g., kg emitted/kg product), denoted as "ECFPV" in those equations.
EFPV-Uf = Emission factor (uncontrolled) for fluorinated GHG f emitted from process vent v during process i, operating scenario j, as used in Equation L-22 (kg emitted/activity) (e.g., kg emitted/kg product), denoted as "EFPV-U" in that equation.
ActivityU = Total process feed, process production, or other process activity for process i, operating scenario j during the year, for which the process vent is not vented to the properly functioning destruction device (i.e., uncontrolled).
ActivityC = Total process feed, process production, or other process activity for process i, operating scenario j during the year, for which emissions are vented to the properly functioning destruction device (i.e., controlled).
o = Number of operating scenarios for process i.
v = Number of process vents in process i, operating scenario j.
w = Number of fluorinated GHGs emitted from the process.
40 C.F.R. §98.123