Ozone-Forming Potential of Reformulated Gasoline (1999) / Chapter Skim
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Appendix C Equation Set for the Complex Model - Phase II RFG
Appendix C Equation Set for the Complex Model - Phase II RFG
Pages 226-238
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From page 226... ...
weighting factor for VOC higher-emitter component of fleet (=0.556)
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From page 227... ...
, measured at 100° F E200 = 200 ° F distillation fraction of the fuel, volume percent E300 = 300 ° F distilIation fraction of the fuel, volume percent ARO = total aromatics content of fuel, volume percent 0LE = total olefins content of fuel, volume percent.
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From page 228... ...
as computed from either of the above equations is modified by linear factoring functions involv~ng deltas (differences between actual and "allowable" values) for E200, E300, and ARO, if any or all of these volume percent values fall outside their allowable ranges.]
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From page 229... ...
, in percentage terms relative to baseline level V0CS2% = total summer VOC emissions performance of target fuel for VOC control Region 2 (north) , in percentage terms relative to baseline level.
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From page 230... ...
Z2 = weighting factor for NOx higher-emitter component of fleet (=0.262) normal-emitter NOx equation for target fuel, as defined below = higher-emitter NOx equation for target fuel, as defined below = normal-emitter NOx equation, defined below, with base fue!
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From page 231... ...
- 85.61 mg/mi (C-24) where TOXICSn = summer toxics performance, VOC Control Region n, milligrams per mile TOXICSn% = TOXIC S performance of the target fuel in VOC Control Region n, in terms of percentage change from baseline exhaust emissions of benzene as computed below, milligrams per mile = exhaust emissions of formaldehyde as computed below, milligrams per mile = exhaust emissions of acetaldehyde as computed below, milligrams per mile = exhaust emissions of 1,3-butadiene as computed below, EXHBZ = FORM ACET BUTA milligrams per mile POM = exhaust emissions of polycyclic organic matter as computed below, milligrams per mile NEBZn = non-exhaust emissions of benzene, VOC Control Region n, as computed below, milligrams per mile.
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From page 232... ...
] = weighting factor for toxics normal-emitter component of fleet (=0.444)
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From page 233... ...
] = normal-emitter formaldehyde equation for target fuel, as defined below = higher-emitter formaldehyde equation for target fuel, as defined below normal-emitter formaldehyde equation below, with basefue} properties as input = higher-emitter formaldehyde equation below, with basefue} properties as input.
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From page 234... ...
] normal-emitter acetaldehyde equation for target fuel, as defined below higher-emitter acetaldehyde equation for target fuel, as defined below normal-emitter acetaldehyde equation below, with base fue!
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From page 235... ...
] normal-emitter 1,3-butadiene equation for target fuel, as defined below higher-emitter I,3-butadiene equation for target fuel, as defined below normal-emitter I,3-butadiene equation below, with base fue!
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From page 236... ...
+ 1.3972] For VOC Control Region 2: DIBZ2 = 10 x BEN x VOCDI2 x [(-0.0290 x MTB)
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From page 237... ...
[NOTE: For purposes of comparing weight percent vs. volume percent of oxygen, approximate conversion values are the following: for MTBE as oxygenate, Wm = Vm X 0.18, and for ethanol as oxygenate, We = Ve x 0.35, where W is weight percent and V is volume percent.]
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