ef_ldv_scaled: Scaling constant with speed emission factors of Light Duty Vehicles

Description

This function creates a list of scaled functions of emission factors. A scaled emission factor which at a speed of the driving cycle (SDC) gives a desired value.

Usage

ef_ldv_scaled(df, dfcol, SDC = 34.12, v, t = "4S", cc, f, eu, p)

Value

A list of scaled emission factors g/km

Arguments

df: deprecated
dfcol: Column of the dataframe with the local emission factors eg df$dfcol
SDC: Speed of the driving cycle
v: Category vehicle: "PC", "LCV", "Motorcycle" or "Moped
t: Sub-category of of vehicle: PC: "ECE_1501", "ECE_1502", "ECE_1503", "ECE_1504" , "IMPROVED_CONVENTIONAL", "OPEN_LOOP", "ALL", "2S" or "4S". LCV: "4S", Motorcycle: "2S" or "4S". Moped: "2S" or "4S"
cc: Size of engine in cc: PC: "<=1400", ">1400", "1400_2000", ">2000", "<=800", "<=2000". Motorcycle: ">=50" (for "2S"), "<=250", "250_750", ">=750". Moped: "<=50". LCV : "<3.5" for gross weight.
f: Type of fuel: "G", "D", "LPG" or "FH" (Full Hybrid: starts by electric motor)
eu: Euro standard: "PRE", "I", "II", "III", "III+DPF", "IV", "V", "VI", "VIc"
p: Pollutant: "CO", "FC", "NOx", "HC" or "PM". If your pollutant dfcol is based on fuel, use "FC", if it is based on "HC", use "HC".

Details

This function calls "ef_ldv_speed" and calculate the specific k value, dividing the local emission factor by the respective speed emissions factor at the speed representative of the local emission factor, e.g. If the local emission factors were tested with the FTP-75 test procedure, SDC = 34.12 km/h.

Examples

Run this code

{
CO <- ef_cetesb(p = "CO", veh = "PC_FG", full = TRUE)
lef <- ef_ldv_scaled(dfcol = CO$CO,
                     v = "PC",
                     t = "4S",
                     cc = "<=1400",
                     f = "G",
                     eu = CO$EqEuro_PC,
                     p = "CO")
length(lef)
ages <- c(1, 10, 20, 30, 40)
EmissionFactors(do.call("cbind",
   lapply(ages, function(i) {
       data.frame(i = lef[[i]](1:100))
}))) -> df
names(df) <- ages
colplot(df)
}