X hits on this document

130 views

0 shares

0 downloads

0 comments

55 / 67

IFEU Heidelberg

49

Chart 13: Primary energy consumption by transport systems (Germany 2000)

Primary energy consumption by road and rail in Germany 2000 [PJ]

22

30

790

17

70

36

45

Cars

City buses

Long distance buses

All trucks > 3.5 t

Subways/ Urban trains

Regional trains

Long distance passenger trains

Freight trains

1800

1600

1400

1200

1000

800

600

400

200

0

1700

Road

Rail

Source: [TREMOD 2001] (Figures rounded)

IFEU 2003

The total annual primary energy consumption depends on the vehicle stock, the an- nual vehicle performance and the specific energy consumption. The energy consump- tion is also depending very much on the mass of the vehicle. Vehicle stock, annual performance and total weight of the vehicles are therefore taken into account by cal- culating our scenario on the basis of the total annual primary energy consumption. The share of new registrations, used to estimate the energy consumption of new vehi- cles, is taken from [BMVBW 2000] for road vehicles and estimated for rail vehicles on the basis of a life-time of 30 years. In this scenario a steady annual performance and specific energy consumption of all vehicles is assumed. The share of energy consump- tion by new registrations will therefore 3.33 % for rail vehicles.

A relative weight reduction affects passenger vehicles with small differences in net and gross weight not in the same way as freight vehicles with large differ- ences in net and gross weight. A 10 % reduction of the net weight of a passenger car (1310 kg) with its driver (75 kg) results in 9.5 % reduction of its gross weight. A 10 % net weight reduction of an articulated truck (12 t) with a payload of 14t (average load) re- sults in a 5 % reduction of the gross weight and for a payload of 28 t (full load) only in a weight reduction by 3 %6. For long distance and city buses a 9 % reduction of the gross weight is assumed. This is the equivalent of about an average of 20 passengers. The same value is taken for passenger rail vehicles as well. The average ratio between load and gross weight without locomotive for German railways (DB Cargo) is 0.48

6

Only heavy trucks (> 32 t) are considered in this scenario due to different load to net weight ra- tios and different driving cycles of light duty trucks

Energy savings by light-weighting

Document info
Document views130
Page views130
Page last viewedSat Dec 03 22:00:35 UTC 2016
Pages67
Paragraphs2067
Words20631

Comments