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IFEU Heidelberg

Tab. 25: Final energy consumption of long distance freight trains

Source [IFEU & SGKV 2002]

Train type Freight trains (electric) 600 t

kJ/gross t-km 96

[IFEU & SGKV 2002]

Freight trains (electric) 1000 t

76

[IFEU & SGKV 2002]

Freight trains (electric) 1500 t

63

[TEMA 2000]

Freight trains (electric) 1000 t

61

(Denmark)

[DB 1993]

Freight trains (electric) long distance

71-93

[JORGENSEN & SORENSON 1997]

Freight trains (electric)

85-102

[SCHWANHÄUSER et al. 1990]

Freight trains (electric)

71-87

[SCHWANHÄUSER et al. 1990]

Freight trains (diesel)

162-201

[STODOLSKY et al. 1998]

Freight trains (diesel) U.S.

91

IFEU 2003

The energy consumption (EC) has also been estimated as a function of weight in anal- ogy to the method in [SCHWANHÄUSER et al. 1986] and [TEMA 2000] for electro trac- tion [IFEU & SGKV 2002] (see values in Tab. 25):

ECtrain [wh/ km] = 315 * Mtrain [t]0,6

EC M train t r a i n

specific energy consumption per train-km total gross weight of train in t

Tab. 26: Overview of data for exemplification of long distance freight trains Freight train (electric)

Specific final energy consumption [kJ/gross t-km]

80

Relative energy savings [%/ 10%]

5% 480

Specific final energy savings (kJ/(100km*100kg))

Life-time performance (km) Life-time final energy savings (MJ) Life-time primary energy savings (MJ) Life-time CO2 savings (t) Source: IFEU 2002 from various sources

8’000’000 32’000 70’000 3.8

A value of 5 % energy savings for a 10 % weight reduction, which is independent of the total train weight, has been identified for exemplification (see section 6.1) and 80 kJ/ gross t-km will be used for electric trains and 180 kJ/gross t-km for diesel trains. Since a figure of 8’000’000 km life-time performance has been identified for the most common locomotives, this will be used for long distance freight trains as well. In our example the life-time primary energy savings for a 100 kg weight reduction are about 70 GJ for electric and 83 GJ for diesel trains (Tab. 26).

Energy savings by light-weighting

Freight train (diesel) 180

5% 1080

8’000’000 72’000 83’000 6.1

IFEU 2003

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