EcoNavis Solutions founder Dr Batuhan Aktas has received the Royal Institution of Naval Architects (RINA) Maritime Innovation Award for his work developing the Eco Boss Cap, a propeller hub technology designed to improve vessel energy efficiency and reduce emissions.
The award, sponsored by QinetiQ, was presented during RINA’s Annual Dinner in London and recognises innovation within naval architecture and maritime engineering.
The Eco Boss Cap technology has been developed to reduce hub vortex cavitation, a phenomenon that can contribute to energy losses, vibration and underwater noise around vessel propellers.
Eco Boss Cap technology aims to improve vessel efficiency
According to EcoNavis Solutions, the Eco Boss Cap can improve fuel efficiency by more than 4% through optimisation of water flow behind the propeller hub.
Unlike conventional fin-based boss cap systems, the design uses an optimised internal chamber geometry and pressure-relief approach to stabilise flow and improve wake uniformity into the rudder.
The technology is customised for individual vessels using computational fluid dynamics (CFD) modelling that considers hull design, operating conditions and propeller-rudder interactions.
EcoNavis also says the design can help reduce underwater radiated noise and vibration associated with cavitation.
Maritime sector continues focus on fuel and emissions reduction
Shipping operators are increasingly investing in technologies that can improve vessel efficiency as the sector works towards reducing fuel consumption, operating costs and greenhouse gas emissions.
Energy-saving devices fitted to propeller systems have become an area of growing interest as shipowners seek practical retrofit solutions that can be deployed across existing fleets.
Dr Aktas said the Eco Boss Cap was developed to provide a scalable and commercially viable approach to reducing fuel consumption and emissions.
The nomination recognised the first commercial retrofit of the technology, which was installed on a bulk carrier operated by Thailand-based Kaizen Ship Management.
Subsequent commercial interest has included orders from Swire Shipping and engagement with other international vessel operators.
University research translated into commercial maritime technology
Dr Aktas is a Chancellor’s Fellow within the Department of Naval Architecture, Ocean and Marine Engineering at the University of Strathclyde.
Professor Neil Logan, Executive Director for EcoNavis, said the award demonstrates the value of translating hydrodynamic research into commercially deployed technology with measurable operational and environmental benefits.
Read more transport and technology innovation news in the Transport and Technology & Innovation sections of Climate Global News.
FAQs
What is the Eco Boss Cap?
The Eco Boss Cap is a propeller hub device designed to improve vessel efficiency by reducing hub vortex cavitation and improving water flow around the propeller.
How does the Eco Boss Cap reduce fuel consumption?
The technology optimises flow behind the propeller hub, reducing energy losses associated with cavitation and improving overall propulsion efficiency.
Why is maritime efficiency important?
Improving vessel efficiency can reduce fuel consumption, lower greenhouse gas emissions and help ship operators reduce operating costs.
Who is Dr Batuhan Aktas?
Dr Batuhan Aktas is the founder of EcoNavis Solutions and a Chancellor’s Fellow at the University of Strathclyde specialising in maritime engineering and hydrodynamics.


