*5.2. 13000 TEU Container*

The 13000 TEU container uses the following operating modes during voyage: Normal seagoing, port in/out (without thruster), port in/out (with thruster), load/unload, and harboring. The test bed experiments were conducted by adjusting the scale of the values obtained from the electric load analysis or the output of each operating mode of an actual ship. As shown in Figure 12, the hybrid power source was used in the load scenarios of this ship. Normal seagoing was a fuel cell operation interval. Port in/out (without thruster) was a fuel cell + battery operation interval. Port in/out (with thruster) was a fuel cell + battery + diesel generator operation interval. Load/unload and harboring were fuel cell operation intervals. The scale-adjusted electric load analysis was applied to the test bed, and the output tests were performed.

**Figure 12.** Operating modes of the 13000 TEU container.

Figure 13 compares the fuel consumption during each operating mode of this ship. The fuel consumption was at maximum during the port in/out (with thruster) mode and at minimum during the load/unload mode. The load increased (and decreased) as the fuel consumption increased (and decreased), respectively. However, on observing the CO2 emission reduction rates shown in Figure 14, it can be seen that the CO2 emission reduction rate was low in the load/unload and harboring modes despite the low fuel consumption.

**Figure 13.** Fuel consumption in each operating mode of the 13000 TEU container ship.

**Figure 14.** Comparison of CO2 emissions and CO2 emission reduction rate in each operating mode of the 13000 TEU container ship.
