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Real-time energy consumption and air pollution emission during the transpacific crossing of a container ship
Yeh, C.-K.; Lin, C.; Shen, H.-C.; Cheruiyot, N.K.; Nguyen, D.-H.; Chang, C.-C. (2022). Real-time energy consumption and air pollution emission during the transpacific crossing of a container ship. NPG Scientific Reports 12(1): 15272. https://dx.doi.org/10.1038/s41598-022-19605-7
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322
|   |
| Auteurs | | Top |
- Yeh, C.-K.
- Lin, C.
- Shen, H.-C.
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- Cheruiyot, N.K.
- Nguyen, D.-H.
- Chang, C.-C.
|
|
| Abstract |
This study presents the real-time energy consumption of a container ship’s generator engine on two round-trips from the West Coast of the US to the East Asian ports and analyzes the ship’s PM10, PM2.5, NOx, SOx, CO, and HC emissions, shore power usage, and factors affecting energy consumption. The average total energy consumption and air emissions for the two round trips were 1.72 GWh and 42.1 tons, respectively. The transpacific crossing segment had the highest average energy consumption (2848 ± 361 kWh) and pollutant emission rate (78.9 ± 10.0 kg h−1). On the other hand, the West Coast of the US had the least energy consumption due to shore power adoption. Furthermore, switching from heavy fuel oil (HFO) to ultra-low-sulfur fuel oil (ULSFO) greatly reduced the emissions of PM and SOx by > 96% and NOx by 17.0%. However, CO and HC increased by 16.9% and 36.1%, respectively, implying incomplete combustion. In addition, the energy consumption was influenced by the number of reefers and wind. Therefore, this study recommends further research on energy-efficient reefers, generator engine optimization, and shore power adoption to reduce emissions from container ships. |
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