13 zhang impacts of vehicle classification system in developing … · 2015-09-10 · impact of...
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19th International Emission Inventory Conference
Impact of vehicle classification systemImpact of vehicle classification systemImpact of vehicle classification system Impact of vehicle classification system to emission inventory development in to emission inventory development in
ChiChiChinaChina
Yingzhi Zhang and Kebin HeYingzhi Zhang and Kebin He
State Key Joint Laboratory of Environment Simulation and Pollution Control, Department of Environmental Science and Engineering,
Tsinghua University, Beijing 100084, [email protected]
SSeptember 28-30, 2010
OverviewOverview
IntroductionMethod and dataMethod and dataResultConclusions
IntroductionIntroduction
450
Reach the forth million
300
350
400
sand
)
Vehicle population in Beijing Reach the third million over 3.5 years
over 2.5 years
200
250
300
e st
ock
(10
thou
s
Reach the first million
Reach the second million over 6 years
50
100
150
Vehi
cl first million over 48 years
0
Source: China Automotive Industry YearbookSource: China Automotive Industry Yearbook
What is needed for Decision Makers?What is needed for Decision Makers?
Emission Inventory
Emission Model
individual vehicle emission levelVehicle activity
urban land use pattern
infrastructure construction
Vehicle Conditionuse pattern
Urban
construction
transportation systemmanagement
Urbantransportation plan
Are the emission factor models suited for China?Are the emission factor models suited for China?
Little research has been done on application ofLittle research has been done on application of vehicular emission models and their adaptability in China.
We aim to improve the method of developing the vehicular emission inventory in China to make thevehicular emission inventory in China to make the vehicle classification data from China match the requirements of the emission factor model.
OverviewOverview
IntroductionMethod and dataMethod and dataResultConclusions
The LDT in Chinese classificationThe LDT in Chinese classification
GVWR is 1789kg GVWR is 6495kg
Both of them are defined as LDT in Chinese classificationBoth of them are defined as LDT in Chinese classification
The classification systems in different modelsThe classification systems in different models
30
35yy
25
15
20
10
0
5
The classification of truck by China Automotive Industry Yearbook, IVE and MOBILE5a
MethodMethod
Investigate the weight of vehicle in ChinaInvestigate the weight of vehicle in China
Develop the weight distribution of vehicle p g
Match the vehicle in China with vehicle f f fclassification system of emission factor models
by the weight distribution of vehicle
MethodMethod
The motorcycles do not be contained in thisThe motorcycles do not be contained in this study.
The weight distribution of new vehicle sale population in 2008 is considered to stand for the weight distribution of all vehicle in 2008weight distribution of all vehicle in 2008.
Average weight and range of new vehicles in different Average weight and range of new vehicles in different t it icategoriescategories
Th i l hi l l iThe mainly vehicle population consists of the about recent 7 years (the periods are not the same in different categories)
The weight distribution of new vehicle sale population in 2008 isvehicle sale population in 2008 is considered to stand for the weight distribution of all vehicle in 2008.
Average weight and weight range of new vehicles in 2003, 2005 and 2008
Weight distribution of Diesel LDT in Chinese Weight distribution of Diesel LDT in Chinese l ifi til ifi ti
6000
7000classificationclassification
IVE MOBILE
4000
5000
hicle/kg
3000
4000
Weight o
f veh
1000
2000W
0
0 50000 100000 150000 200000
The population
weight distribution of LDT
The classification system in different modelsThe classification system in different models
30
35yy
25
15
20
10
0
5
The classification of truck by China Automotive Industry Yearbook, IVE and MOBILE5a
Vehicle population in different categoriesVehicle population in different categoriesp p gp p g
50
60
30
40llion
20
mi
0
10
Chinese matched unmatched t h d t h dChinese classification
HDT MDTLDT MTHDB MDB
matched unmatched
IVESL SMSH BLBM BH
matched unmatched
MOBILE
LDGV LDDV
LDGT1 LDGT2
LDDT HDGV
HDDV
OverviewOverview
IntroductionMethod and dataMethod and dataResultConclusions
Results from IVEResults from IVE
60
30
40
50
million
10
20
30
popu
latio
n/m
0
SL SM SH BL BM BH SL SM SH BL BM BHVehiclep
Diesel Gasoline Diesel Truck
Car Total
matched unmatched
Results from IVEResults from IVE
5
2 53
3.54
4.5
tons
0.51
1.52
2.5
NOx/million
0SL SM SH BL BM BH SL SM SH BL BM BH
Diesel Gasoline Diesel Car TotalTruckmatched unmatched
Depending on the matched data the NOx of vehicle emission is 10.84% higher than unmatched data
Results from IVEResults from IVE
12
14
8
10
12
tons
2
4
6
CO/m
illion
0
SL SM SH BL BM BH SL SM SH BL BM BH
Diesel Gasoline Diesel Truck
Car Totalmatched unmatched
Depending on the matched data the CO of vehicle emission is 5.29% higher than unmatched data.g g
Results from IVEResults from IVE
1 2
1.4
0.8
1
1.2
tons
0.2
0.4
0.6
HC/million
0
SL SM SH BL BM BH SL SM SH BL BM BH
l l l lDiesel Gasoline Diesel Truck
Car Totalmatched unmatched
Results from IVEResults from IVE
1
0.6
0.8
1
tons
0.2
0.4
PM/m
illion
0SL SM SH BL BM BH SL SM SH BL BM BH
Diesel Gasoline Diesel Truck
Car Totalmatched unmatched
Results from MOBILEResults from MOBILE
60
30
40
50
60
n/million
10
20
30
lepo
pulatio
0
LDGV LDDV LDGT1 LDGT2 LDDT HDGV HDDV Diesel Truck
Car Total
matched unmatched
Vehic
Results from MOBILEResults from MOBILE
5
3
4
5
tons
1
2
HC/million
0
LDGV LDDV LDGT1 LDGT2 LDDT HDGV HDDV Diesel Truck
Car Total
matched unmatched
Results from MOBILEResults from MOBILE
101214
ns
2468
x/millionton
02
NO
20
10
15
n tons
0
5
LDGV LDDV LDGT1 LDGT2 LDDT HDGV HDDV Diesel Car Total
CO/m
illion
LDGV LDDV LDGT1 LDGT2 LDDT HDGV HDDV Diesel Truck
Car Total
matched unmatched
OverviewOverview
IntroductionMethod and dataMethod and dataResultConclusions
ConclusionsConclusions
The vehicle weight distribution is a key factor that helps vehicle g yclassification to match the classification of emission factors models especially for the emission factor models which are not designed for China.
The impacts of weight distribution in the different classification system are not the same.
In order to estimate the accuracy of the vehicle emission inventory calculated by the emission factor models, it is necessary to determinate the weight distribution of vehicles by collecting the data.
Th kTh k !!Thank youThank you!!