fuel_correction {gtfs2emis}R Documentation

Correction factor equation

Description

Relations between emissions and fuel properties for diesel heavy-duty vehicles based on EMEP/EEA. Function based on values from the EMEP/EEA air pollutant emission inventory guidebook 2019. Estimates are given by the ratio between correction factor of improved fuel by the correction factor of base fuel.

Usage

fuel_correction(
  pollutant,
  euro_stage,
  improved_fuel = c(den = 835, s = 40, pah = 5, cn = 53, t95 = 320)
)

Arguments

pollutant

character. Pollutant classified in "CO", "VOC", "NOx" or "PM10".

euro_stage

character. EURO period of vehicle, classified in "PRE", "I", "II", "III", "IV", "V" and "VI".

improved_fuel

numeric. Numeric vector for characteristics of an improved fuel, ordered by: den (Density at 15 degrees C), s (Sulphur content in ppm), pah (Polycyclic aromatics content in \ number), t95 (Back end distillation in degrees C). Default input uses c(den = 835, s = 40, pah = 5, cn = 53, t95 = 320).

Value

numeric. A fuel correction factor.


[Package gtfs2emis version 0.1.1 Index]