Sustainable Solutions for SCM

Example 6: A 24 t truck transports 3 t of fashion goods from Berlin to Dresden. The distance is 250 km. The route is mainly flat. Fashion goods are volume goods. So the total diesel consumption is F = 3 t x 250 km x 0.033 l/t km = 24.75 l. 6.3.2 Train transport Train transportation can take place with diesel engines or the train can use electrical energy. As for the truck, the higher the total weight of the train is and thus the weight of the transported good, the lower the specific energy consumption is per t km for the transported good. If electricity is used, the CO 2 emission depends on the energy mix for the energy production (see Table 6.8). Table 6.8 Energy consumption for train transportation [1] Electrical Energy Diesel Volume Average Bulk Volume Average Bulk (kWh/t km) (l/t km) Short 500 t 0.064 0.049 0.043 0.017 0.013 0.012 Medium 1,500 t 0.042 0.028 0.028 0.011 0.009 0.008 Long 1,500 t 0.032 0.025 0.022 0.009 0.007 0.006 Long 2,000 t 0.027 0.021 0.018 0.007 0.006 0.005 0.507 0.622 0.726 0.137 0.169 0.197 Medium 1,500 t 0.330 0.405 0.472 0.128 0.110 0.128 Long 1,500 t 0.256 0.315 0.367 0.085 0.085 0.100 Long 2,000 t 0.214 0.264 0.307 0.072 0.072 0.083 Example 7: A train runs from Barcelona to Hamburg. The distance is 1,800 km. Heavy machine parts are sent in a 2 TEU container. The total route is electrified. The total weight of the train is 2,000 t. The energy consumption is: F = 2 TEU x 1,800 km x 0.307 kWh/t km = 1,105.2 kWh. 6.3.3 Sea transport For the sea transport different kinds of vessels exists. The most important are: • General cargo vessels. • Dry bulk carriers. Container Short 500 t (kWh/TEU km) (l/TEU km)

• Liquid bulk carriers. • Container carriers. • Roll-on-roll-off vessels.

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