Performance or Will? (2)

Although termites have known the basic principles of thermodynamics for thousands of years, it was Sadi Carnot, the French physicist, engineer and mathematician, who discovered that exchange of heat can generate “work” and was thus the first to introduce the concept of “Thermodynamic Production”.

This led to the vast improvement of ventilation and climatization systems on board. Rosetti Superyachts found inspiration from the principles of thermodynamics, first theorized by Carnot, as well as the biomimetics studied from the termites’ examples of efficiency.

Thanks to exploitation of the natural rise and fall of hot and cold air, it is possible to maintain a constant temperature in a closed space and enhance thermodynamic production, reducing the strain on engines and pumps and therefore reducing noise and costs at the same time.

The study of biomimetics and its consequent derived applications have also improved the performance of our boats. A study carried out by researchers in the Fraunhofer Institute for Manufacturing Engineering and Applied Materials Research (IFAM) of Brema in Germany has perfected a special varnish able to reduce fuel consumption and carbon dioxide emission.

This varnish took inspiration from shark skin and then imitated thanks to modern methods in nanostructural materials. The particular structure of shark skin has a minimum resistance to water and is really a complex covering made up of collagen fibres, which because of their shape and positioning reduce water turbulence caused by friction.

First applied to the fuselage of an airplane, the results were amazing! Evidence shows that if all airplanes in the world were painted with this varnish, 4 million tons of fuel would be saved in a year. The same applies to vessels: no further layer being required there is no extra weight, it reduces friction by over 5% and if applied to one single heavy tonnage ship, saves 2000 tons of fuel a year.

A feature of the RSY 38m Explorer at present in construction in our shipyard in San Vitale (Ravenna, Italy) is the straight, high, slender, prow standing vertical to the surface of the sea.

Applied to a fast navy vessel or for logistic support and rescue, this type of prow is called “wave piercing” as it makes holes in the waves. The shape proves to be an expedient which greatly  improves stability in difficult meteo-marine conditions without limiting navigation speed.

In this way, yet more inspiration came from another sea predator , master of hydrodynamics and speed: the barracuda. With its particularly elongated body and “squashed” head, it can slice through the water much more quickly even with frequent changes of direction – in tight spaces – during a chase.

Last but not least don’t let us forget the RSY 52m Supply Vessel. The project was presented almost a year ago in Montecarlo and is based on biomimetics inspired by the structure of leaves.

Used both for interiors as a design feature and in the architecture of the vessel, the final result reveals a “flexible and resistant” yacht with all the characteristics necessary to satisfy even the most exigent ship-owners.