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Appl. Sci. 2019, 9(8), 1547; https://doi.org/10.3390/app9081547

Analysis of a Supercapacitor/Battery Hybrid Power System for a Bulk Carrier

1
Future Technology Research Team, Korean Register (KR), Busan 46762, Korea
2
Division of Marine System Engineering, Korea Maritime and Ocean University, Busan 49112, Korea
*
Authors to whom correspondence should be addressed.
Received: 4 March 2019 / Revised: 8 April 2019 / Accepted: 10 April 2019 / Published: 14 April 2019
(This article belongs to the Special Issue Cutting-Edge Technologies for Renewable Energy Production and Storage)
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Abstract

Concerns about harmful exhaust emissions from ships have been an issue. Specifically, the emissions at ports are the most serious. This paper introduces a hybrid power system that combines conventional diesel generators with two different energy storage systems (ESSs) (lithium-ion batteries (LIB) and supercapacitors (SC)) focused on port operations of ships. To verify the proposed system, a bulk carrier with four deck cranes is selected as a target ship, and each size (capacity) of LIB and SC is determined based on assumed power demands. The determined sizes are proven to be sufficient for a target ship through simulation results. Lastly, the proposed system is compared to a conventional one in terms of the environmental and economic aspects. The results show that the proposed system can reduce emissions (CO2, SOX, and NOx) substantially and has a short payback period, particularly for ships that have a long cargo handling time or visit many ports with a short-term sailing time. Therefore, the proposed system could be an eco-friendly and economical solution for bulk carriers for emission problems at ports. View Full-Text
Keywords: hybrid power system; lithium-ion battery (LIB); supercapacitor (SC); alternative maritime power (AMP); bulk carrier hybrid power system; lithium-ion battery (LIB); supercapacitor (SC); alternative maritime power (AMP); bulk carrier
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Kim, K.; An, J.; Park, K.; Roh, G.; Chun, K. Analysis of a Supercapacitor/Battery Hybrid Power System for a Bulk Carrier. Appl. Sci. 2019, 9, 1547.

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