Ship energy efficiency - The impact in ship design and ship operation of the new amendments to Marpol VI
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Keywords
Ship Energy Efficiency ; EEXI ; CII ; ShipFORCE Software ; GHG strategy ; MARPOL VIAbstract
This thesis, titled "Ship Energy Efficiency: The Impact of New Amendments to Marpol VI on Ship Design and Operation," explores strategies for implementing the Energy Efficiency Existing Ship Index (EEXI) and Carbon Intensity Indicator (CII) regulations on ships. It focuses on assessing how energy efficiency measures, such as engine power limitation (EPL) and speed reduction, affect ship operations and emissions. Reducing speed is a widely used approach to lower fuel consumption and greenhouse gas emissions, as propulsive power requirements rise significantly with speed. This study examines the technical solution of limiting engine power through EPL or Shaft Power Limitation (ShaPoLi), along with other measures, to help ships meet EEXI standards. Speed adjustments are also analyzed as an operational approach for compliance with CII requirements.
The research includes a case study involving two ships of different sizes, where data on design and operational parameters were collected and analyzed using ShipFORCE software to calculate the EEXI and CII indices. Various levels of engine power limitation were tested, revealing that EPL significantly aids in meeting EEXI standards. The study also assesses the gap between attained and required EEXI and CII levels and evaluates the effectiveness of different technical and operational strategies to bridge this gap.
Key findings suggest that speed reduction and EPL are effective short-term solutions for EEXI and CII compliance, with speed reduction being a low-cost option for CII regulation. However, speed reduction alone may not suffice for substantial energy efficiency improvements. Overall, this thesis provides insights into using EPL and speed adjustments to meet emissions regulations while balancing vessel efficiency and profitability.
Postgraduate Studies Programme
MSc Sustainability and Quality in Marine IndustryDepartment
Σχολή Ναυτιλίας και Βιομηχανίας. Τμήμα Ναυτιλιακών ΣπουδώνNumber of pages
89Language
EnglishCollections
Except where otherwise noted, this item's license is described as
Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ελλάδα
Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ελλάδα