As the maritime industry faces increasing regulatory pressure and fuel cost volatility, shipowners and operators are looking toward advanced propeller designs and propulsion energy-saving devices (ESDs) for long-term solutions.
The latest report, Applying Advanced Propeller Designs to Ships, offers a deep dive into how these retrofits can optimize vessel performance, reduce emissions, and support compliance with evolving global and regional regulations.
Propeller Retrofits as a Fuel and Carbon Saving Solution
Optimised propellers can significantly reduce propulsion-related fuel consumption, with the added benefit of shorter payback periods due to carbon pricing mechanisms. With fuel costs making up a substantial portion of vessel operating expenses, energy-efficient designs are emerging as a smart investment for owners aiming to boost profitability while cutting emissions.
Ensuring Regulatory Compliance with IMO and EU Standards
The report explores how propeller and ESD retrofits can support compliance with the IMO’s Carbon Intensity Indicator (CII) and Energy Efficiency Existing Ship Index (EEXI), as well as regional frameworks like the EU Emissions Trading System (EU ETS) and FuelEU Maritime. For many vessels, these upgrades offer a pathway to avoiding penalties and extending operational viability into the coming decades.
Market Trends: Retrofitting on the Rise
Since 2020, the industry has seen a surge in retrofit activity, driven by both tightening regulations and the pursuit of efficiency. Interestingly, not only older vessels but also a growing number of newer ships are undergoing upgrades—highlighting a shift in focus toward future-proofing assets from the outset.
Selecting the Right Technology: No One-Size-Fits-All Approach
Propeller performance depends on vessel-specific factors, such as hull form, draft, speed, and operational profile. The report emphasizes the importance of customisation when choosing technologies and provides guidance for selecting the most effective solutions for different ship types and routes.
Technical Challenges and the Need for Expert Support
Key technical considerations include torsional vibration, shaft alignment, biofouling, and underwater radiated noise—all of which can impact long-term performance and compliance. The report advocates for using Computational Fluid Dynamics (CFD) and structural analysis to ensure upgrades meet both safety and environmental standards.
Did you subscribe to our daily Newsletter?
It’s Free Click here to Subscribe!
Source: LR
