What kind of maintenance does the Hull Vane® require?
Are there any government subsidies to soften the investment cost?
The fuel savings caused by the Hull Vane® lead to a reduction in emissions of similar proportions. The ship’s Energy Efficiency Design Index (EEDI) is improved. The government subsidies granted are country-specific and can be investigated on a case-by-case basis. Even without government subsidies the savings of the Hull Vane® are of such proportions for many ships that it makes business sense to look into it.
Does the Hull Vane® increase the length-over-all of the ship?
In most applications, the Hull Vane® is situated aft of the stern and does indeed increase the length-over-all. In cases where it is important to protect the Hull Vane® from tugs or other vessels, a tubular frame can be built above the waterline. In some cases, the Hull Vane® is situated entirely within the ship’s length, so please consult us if this is an issue.
How much does it cost?
The installation of a Hull Vane® is an investment which pays itself back over a period of time, much like solar panels, real estate, etc. The investment risk is extremely low: as long as the ship is sailing, and oil prices aren’t decimated, the Hull Vane® will pay dividend. As there are no moving parts on the Hull Vane, there are no unforeseen costs to be expected in the future.
For new vessels in the design stage, the application of the Hull Vane® can lead to a reduction in size of the main engines and their exhaust systems, leading to a more compact engine room. Furthermore, the savings in installed engine power will offset most of the investment cost of the Hull Vane®.
Is the Hull Vane® patented?
The Hull Vane® is protected by patents in all major shipbuilding countries. The development of the Hull Vane® took over 10 years and required a significant investment.
What about the weight of the Hull Vane® and my LCG?
What are the disadvantages?
Can the Hull Vane® be mounted on ships with Ice-Class notations?
Can the Hull Vane® be retrofitted to an existing ship?
Which modifications are needed to the ship’s structure?
Can you give a ballpark figure for the energy savings on my vessel?
The performance of the Hull Vane® varies from ship to ship. Please contact us if you wish to receive an indication of expected savings.
Is CFD reliable enough or should we model test the Hull Vane® in a towing tank before ordering?
In recent years, the technology in CFD has evolved to such a point that it is now more reliable than tanktesting, as there is no problem with the scaling of viscous effects. Nevertheless, a large number of tank tests have been carried out with the Hull Vane® to verify its effects.
On request, model testing in a towing tank can be carried out to validate the CFD calculations.