Apresentao do PowerPoint

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Road Transport Emission Inventory Pierre
Rouveirolles RENAULT
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Road Transport Emission Inventory Methodology
outline
Ei,j,k Nj x Mj,k x ei,j,k
Ei,j,k Emissions of the pollutant i, produced
in the reference year by vehicles of class j
driven on roads of type k
Nj Number of vehicles of class j in
circulation at the reference year
Mj,k Mileage per vehicle driven on roads of
type k by vehicles of class j
ei,j,k Average fleet representative baseline
emission factor for the pollutant i, relevant
for the vehicles class j, operated on roads of
type k ( pollutant emission f
( average vehicle speed ) according to the COPERT
() approach ) ( ) modelling
tool agreed by the european Commission for the
road transport emission inventories
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Road Transport Emission Inventory Methodology
outline
Ei,j,k Nj x Mj,k x ei,j,k
Pollutant covered (i) - Carbon Monoxide
(CO) - Sulphur Dioxide (SO2) - Nitrogen
Oxides (NOx) - Particulate Matter (TSP)
Vehicles category split (j) - Passenger Cars
(Car) - Light Duty Vehicles (VAN) - Heavy
Duty Vehicles (Truck Bus) - Two-wheeled
vehicles (2W)
Roads classes (k) - Urban ( average speed )
- Rural - Highway
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Road Transport Emission Inventory Methodology
outline
Vehicle Fleet
Mileage per vehicles
Baseline Emission Factor
Nj
Mj,k
ei,j,k
Ei,j,k
? Nj for each Municipality
x
x
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Vehicles Fleet Methodology outline

• Data provided by CIDE Foundation and DETRAN-RJ
  were used

Data already available per -
Municipalities - Model year -
Fuel (14 categories) - Vehicles
categories (19 categories)
grouped categories

• Project split
• 4 main categories of vehicles
• Cars, vans, trucks and buses, 2Ws
• 4 categories of fuels
• gasolina, alcohol, diesel, natural gas

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Vehicles Fleet Some Provisions, .
The CIDE / DETRAN RJ statistics reflect the
WHOLE Fleet . However, the whole Fleet includes
- static fleet ( do the vehicles still exist
? ) - running fleet ( really used ! ) For the
Road Transport Emission Inventory, the fully ()
detailed knowledge of the running fleet is
absolutely required how to address this issue
? () all the various vehicle categories, for
all the fuel types, all the age classes
( model year ) and all the Municipalities
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Vehicles Fleet - Results Number of vehicles per
fuel type
Data CIDE Foundation DETRAN-RJ
Whole fleet 2,212,700 Vehicles
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Vehicles Fleet - Results Number of vehicles per
vehicle category
Data CIDE Foundation DETRAN-RJ
Whole fleet 2,212,700 Vehicles
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Vehicles Fleet - Results Number of vehicles per
vehicle age
Data CIDE Foundation DETRAN-RJ
Whole fleet 2,212,700 Vehicles
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Vehicles Fleet - Results Number of Cars per
vehicle age and fuel type
Data CIDE Foundation DETRAN-RJ
Car fleet 1,832,570 Vehicles
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Vehicles Fleet - Results Number of Trucks per
vehicle age and fuel type
Data CIDE Foundation DETRAN-RJ
Truck fleet 56 730 Vehicles
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Road Transport Emission Inventory Methodology
outline
Mileage per vehicles
Vehicle Fleet
Baseline Emission Factor
Nj
Mj,k
ei,j,k
Ei,j,k
? Nj for each Municipality
x
x
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Mileage per vehicles Methodology proposed

• Determination of the fuel consumption -
  Corresponding to the studied area
• - For the reference year (2000)
• - Split per vehicle category
• - Split per type of fuel

• Relevent data ( specific consumption ) for
  each category of vehicle
• and on each road classes

Estimation / Calculation of an annual average
mileage per category of vehicle
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Mileage per vehicles Input Data

• Fuel consumption over the 15 Municipalities (year
  2000)

GN () Estimated volume (calculated for 200
bars pressure)

• Vehicles fleet per category and fuel type

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Road Transport Emission Inventory Methodology
outline
Baseline Emission Factor
Vehicles Fleet
Mileage per vehicles
Nj
Mj,k
ei,j,k
Ei,j,k
? Nj for each Municipality
x
x
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Baseline Emission Factor COPERT

• Legislative steps or Technology / Technical
  Equipment

Passenger cars cases
up to 1991
1991 - 1996
1997 2005
F1
F2 / US 83
US 87 ()
Gasolina
Fuel injection Catalytic converter
Carburetor / No exhaust after treatment required
Alcool
Diesel
Diesel Prohibited since 1991
() US 83 US 87 for the gasoline fuelled
vehicles
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Baseline Emission Factor Methodology outline

• Vehicle fuel type Methodology used for
  applying COPERT to
• Gasolina and Alcool vehicles

Gasolina
Alcool
Diesel
 CETESB Point  used to fit the COPERT equation
Car
VAN
Truck
COPERT 3
Bus
2W
( ) COPERT equation emission vs vehicle
speed
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Baseline Emission Factor  CETESB Point 
Emission Factor given for an average speed ( V. )
Source CETESB annual report
( g/km )
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Baseline Emission Factor Methodology outline
COPERT equation ei,j,k f ( vehicle speed )
Emission Factor ( g/km )
18,5
31,5
Speed ( km/h )
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Main Outcomes

• Conclusions
• According to the ( CIDE / DETRAN RJ ) data,
• the Cars and the VANs represent the largest
  population ( 90 )
• the car fleet is pretty old gt 50 are older
  than 9 years
• the VAN fleet is also quite old gt 40 are
  older than 9 years
• Diesel fuel ( poor quality ) represents the most
  used fuel by the fleet, mainly used on
• - Heavy Duty Trucks and
• - Buses