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Energy saving device Hull Vane presented to Asian naval sector at MAST Asia 2017 Conference
 
Energy saving device Hull Vane presented to Asian naval sector at MAST Asia 2017 Conference While most exhibitors and presentations at MAST are focused on how to increase the impact of naval ships, very few are meant to reduce the impact (and costs). One such company is Hull Vane® BV, which will present its energy saving solution for naval ships at the MAST conference on Tuesday 13 June in session 5D – Advances in hydrodynamics.
 
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MAST Asia 2017 Online Show Daily - Hull Vane press release
 
 
 
Energy saving device Hull Vane presented to Asian naval sector at MAST Asia 2017 Conference
 
While most exhibitors and presentations at MAST are focused on how to increase the impact of naval ships, very few are meant to reduce the impact (and costs). One such company is Hull Vane® BV, which will present its energy saving solution for naval ships at the MAST conference on Tuesday 13 June in session 5D – Advances in hydrodynamics.
     
Energy saving device Hull Vane presented to Asian naval sector at MAST Asia 2017 ConferenceTypical Hull Vane configuration on patrol vessel
     
Hydrofoil technology
Initially developed for an America’s Cup sailing yacht in early 2000, the Hull Vane® is a patented application of hydrofoil technology on displacement ships. It is particularly effective on those ships that combine a relatively high weight with a relatively high speed-to-length ratio. In addition to superyachts, ferries and certain offshore vessels, naval surface ships such as patrol vessels, corvettes and frigates correspond very well with this application range. On such ships, the Hull Vane® can achieve economies of 10-20%, while increasing the range and top speed.
     
Energy saving device Hull Vane presented to Asian naval sector at MAST Asia 2017 ConferenceReduced stern wave on DTMB5415 destroyer hull form. Without Hull Vane® (top) and with Hull Vane® (bottom)
     
Operational profile
In the paper presented at MAST Asia, the Hull Vane® is compared to often used alternatives, such as trim wedges and interceptors. The chosen hull form is a generic fast displacement hull which is often used as a parent hull for naval ships. The results are consistent with CFD studies, model tests and full scale trials carried out with Hull Vane® on existing ships. The benefits are analysed for three different operational profiles for a similar 50 m vessel.

Side benefits
While reducing the energy consumption is usually the main goal, the Hull Vane® has additional effects which are very desirable for naval ships. When a ship sails in waves, the Hull Vane® dampens the pitching and yawing motions, making helicopter landings safer and improving the performance of onboard systems and personnel. As the Hull Vane® reduces the stern wave, the propeller loading and the engine power for a given speed, the ship will also have a reduced acoustic (and visual) signature. On newbuild naval ships, the cost savings on engine power to reach a given speed are generally much higher than the cost of the Hull Vane. Retrofitting a Hull Vane® on existing naval ships typically has a payback period of one to three years.

Maritime Innovation Award
After many years of development, Hull Vane® B.V. was established in 2014 and is located in Wageningen, the Netherlands. The Hull Vane® is now installed on five vessels, and seven more are currently under construction. Just recently, Hull Vane® won the 2016 Maritime Innovation Award from the Royal Institution of Naval Architects. Sales director Bruno Bouckaert will be available for meetings at MAST Asia
     
Energy saving device Hull Vane presented to Asian naval sector at MAST Asia 2017 Conference
Wake behind transom on patrol boat at 11 kn without Hull Vane® (left) and with Hull Vane® (right), leading to 25% lower fuel consumption