Take into account the effect of better fuels on vehicles with
older technology. If the ratio is less than 1, return 1. It means that it is
nota degradation function.
Usage
fuel_corr(
euro,
g = c(e100 = 52, aro = 39, o2 = 0.4, e150 = 86, olefin = 10, s = 165),
d = c(den = 840, pah = 9, cn = 51, t95 = 350, s = 400)
)
Numeric; vector with parameters of gasoline with the names:
e100(vol.
(sulphur, ppm)
d
Numeric; vector with parameters for diesel with the names:
den (density at 15 Celsius degrees kg/m3), pah (
(Back end distillation in Celsius degrees) and s (sulphur, ppm)