Energy- and cost-efficiency analysis of greenhouse gas emission reduction using slow steaming of ships: case study RO-RO cargo vessel
2018; Taylor & Francis; Volume: 13; Issue: 8 Linguagem: Inglês
10.1080/17445302.2018.1470920
ISSN1754-212X
Autores Tópico(s)Spacecraft and Cryogenic Technologies
ResumoThe International Maritime Organization introduced two energy efficiency indexes to reduce greenhouse gas emissions from ships. One of the short-run solutions is to reduce ship speed. The present research calculates the cost-effectiveness of reducing CO2 emissions and the improved Energy Efficiency Design Index (EEDI) corresponded to the reduced Energy Efficiency Operational Indicator (EEOI) due to slow steaming. As a case study, RO-RO cargo vessel has been investigated. Reducing ship speed by 10% and 40% will reduce CO2 emission by 27.05% and 78.39% with cost-effectiveness of 121.2 $/ton CO2 and 287.6 $/ton CO2, respectively. The attained EEDI values will be improved by 2.04% and 35.81% with the reduced EEOI values by 8.76% and 70.65%, respectively. Although ship slow steaming by 40% would comply with the required EEDI for the first and the second phases, the complied EEDI value needs to be further reduced by 7% in the year 2025.
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