13 zhang impacts of vehicle classification system in developing … · 2015-09-10 · impact of...

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, Chinazyz03@mails.tsinghua.edu.cn

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！！