A New Method of Determining Energy Efficiency Operational Indicator for Specialized Ships

Katarzyna Prill, Cezary Behrendt, Marcin Szczepanek and Iwona Michalska-Pożoga
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Katarzyna Prill: Institute of Marine Power Plants, Maritime University of Szczecin, ul. Waly Chrobrego 1-2, 70-500 Szczecin, Poland
Cezary Behrendt: Institute of Marine Power Plants, Maritime University of Szczecin, ul. Waly Chrobrego 1-2, 70-500 Szczecin, Poland
Marcin Szczepanek: Institute of Marine Power Plants, Maritime University of Szczecin, ul. Waly Chrobrego 1-2, 70-500 Szczecin, Poland
Iwona Michalska-Pożoga: Department of Mechanical Engineering, Koszalin University of Technology, Raclawicka 15-17, Koszalin 75-620, Poland

Energies, 2020, vol. 13, issue 5, 1-17

Abstract: Limitation of CO 2 emission is one of the main goals and regulations introduced by the international institutions’ rules. In the case of ships using oil-related and gas fuels this problem is dealt with by the International Maritime Organization (IMO) introducing the methodology of Energy Efficiency Operational Indicator ( EEOI ) determining for ships being under exploitation. The methodology allows for determining EEOI for seven types of ships, for which the value of this index depends on the amount of transported cargo or number of passengers, type of and amount of fuel used, as well as distance travelled by the ship. Such a methodology cannot be used for the specialized ships, whose exploitation tasks are different to the ships of the trade fleet that transport the cargo or the passengers. The methodology allows for determining EEOI for seven types of ships and it does not include specialized ships. The article presents a new methodology of determining EEOI for specialized ships that takes the characteristics of their exploitation into consideration. The way of its use has been presented taking into account the results of exploitation studies carried out on the chosen research and training ship. Obtained results and their analysis allowed for energy efficiency assessment of research and training ships depending on exploitation tasks, voyage time, type of fuel used, distance travelled and ship’s speed. EEOI index value determines energy efficiency of the vessel power system that is directly connected to the amount of the liquid or gas fuel used and the amount of emitted CO 2 . The aim should be to minimalize the value of EEOI index through planning of the exploitation tasks realization order and adjusting the speed of the ship as well as realization time of particular exploitation tasks, in the case of specialized ships. The analysis results can also be used when managing energy efficiency of these types of ships.

Keywords: specialized vessels; energy efficiency operational indicator; energy efficiency management (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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