High-efficiency Propellers / Edge Cutting
Multi-dimensional thrust optimization for newbuilds and retrofits.
Overview
Multi-dimensional thrust optimization through advanced propeller design and edge cutting techniques for both newbuilds and retrofits. In one project, the propeller diameter was changed from 4.5m to 4.6m while overall weight was reduced by 1,200 kg, improving propulsion efficiency and increasing vessel speed while reducing fuel consumption by 6%.
How It Works
- 1Energy losses from tip vortices, cavitation, and turbulence are reduced through precise shape modification of the propeller blades.
- 2Thrust efficiency is enhanced via multi-dimensional optimization of airfoil profiles, pitch distribution, and disk area ratio.
- 3The propulsion system is optimized by considering the ship's Engine Power Limitation (EPL) and integrating energy-saving devices such as fairings and shaft generators.
- 4Main engine speed is adjusted to achieve lower fuel consumption at the same speed, or higher speed with the same power.
Key Benefits
- ✓Multi-dimensional thrust optimization
- ✓Suitable for newbuild and retrofit
- ✓Advanced propeller design and edge cutting
- ✓Proven 6% fuel reduction in PCTC project
Applicable Vessel Types
- ▸57,000 DWT Bulk Carrier
- ▸82,000 DWT Bulk Carrier
- ▸105,000 DWT Aframax Tanker
- ▸180,000 DWT Capesize Bulk Carrier
- ▸45,700 DWT Bulk Carrier (in progress)
- ▸76,000 DWT Bulk Carrier (in progress)
- ▸2,000 CEU PCTC (propeller diameter 4.5m → 4.6m, weight −1,200 kg, fuel −6%)
Specifications
- Fuel Saving
- Custom (up to 6% verified)
- Vessel Types
- All propeller-driven vessels
- Installation
- Retrofit or newbuild
- Class Approval
- CCS, ABS, BV, DNV, LR, RINA, NK, KR, RS
FAQ
What fuel saving can high-efficiency propellers deliver?
Based on verified sea trial data, fuel savings of up to 6% have been achieved. Actual savings depend on the vessel's current propeller condition, hull form, and operating profile.
Is edge cutting suitable for retrofit or only newbuild?
Edge cutting is suitable for both newbuild and retrofit applications. For retrofits, the existing propeller is modified in-place, making it a cost-effective upgrade during dry-docking.
Can propeller optimization be combined with a shaft generator installation?
Yes. Our propeller optimization solutions are specifically designed to account for shaft generator loads, ensuring propulsion efficiency is maintained or improved after the shaft generator is installed.
Success Cases
2,000 CEU PCTC: propeller diameter 4.5m → 4.6m, weight reduced by 1,200 kg, fuel consumption reduced by 6%
180,000 DWT Capesize Bulk Carrier: comprehensive fuel saving over 6% with PSV + PBCF + propeller edge cutting
57,000 DWT Bulk Carrier: propeller optimization + shaft generator, annual fuel savings exceeding USD 400,000