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Author Topic: Wind Power  (Read 13204 times)

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AGelbert

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Re: Wind Power
« Reply #255 on: June 17, 2018, 07:11:19 pm »
David B.:
Quote
I saw a documentary on cousteau on the Alcyone. https://en.m.wikipedia.org/wiki/Turbosail
And I remember reading about rotor ships.
https://en.m.wikipedia.org/wiki/Rotor_ship

Yes, that magnus effect is a very real way of harvesting wind for propulsion quite efficiently. 


There are some ships now being fitted with rotor sails to harness wind as a supplement to the engines:

SNIPPET:

Types

Several types of rotor ships can be distinguished. Rotor sail-only ships exist, as do rotor sail-assist (hybrid) ships.[citation needed] Wind Ship Development Corporation has two types of sail-assist designs, for use with different sizes of ships.[2] In practice, most rotor ships have a system with an electric motor that allows the initial start and eventual stop of the rotor by crew.[citation needed] Rotor's rotational speed (i.e., RPM) and direction of spin can also be controlled.[citation needed]

Uses today

Rotor ship E-Ship 1, from German wind-turbine manufacturer Enercon


File:Points of sail for rotorships.svg

In 2014 Norsepower, a Finnish clean technology and engineering company pioneering the generation of renewable wind energy for the global maritime industry, announced that it will bring to the market the "Norsepower Rotor Sail Solution"[21] which is a completely modernized version of the Flettner rotor. Later in 2014 Norsepower installed the first Norsepower Rotor Sail on Finnish shipping company Bore's RoRo vessel M/V Estraden, and in the end of 2015 Norsepower installed a second similar unit on the same ship. In the beginning of 2016 it was released by Norsepower, that based on the successful sea trials on board M/V Estraden, the technology has potential for fuel savings of up to 20% for vessels with multiple, large rotors traveling on favourable wind routes.[22]

After Norsepower's success with the new design, also Viking Line returned with the rotor concept for their next planned newbuilding. The first image of a new 63,000 GT vessel shows large Flettner rotors which could help the ship to reduce fuel consumption with up to 15%. Letter of intent was signed for the ship in November 2016, awaiting final agreements signing in early 2017.[23] According to a Finnish newspaper, the rotor concept of Viking Line is based on Norsepower Rotor Sails.[24] The latest news from Norsepower is that they have agreed with world's biggest shipping company, Maersk, to start testing the rotor concept in Maersk ships starting beginning of 2018. The managing director of Norsepower, Tuomas Riski, promises their innovation to cut 7–10% of fuel cost leading up to 300000€ savings in big tankers.

In 2018, the MS Viking Grace was retrofitted with a rotor for further testing.[25]

Agelbert NOTE: The rotor is installed near the middle of the short video:


Read more:

https://en.wikipedia.org/wiki/Rotor_ship
El viento sopla de donde quiere, y oyes su sonido; mas ni sabes de dónde viene, ni a dónde va;
así es todo aquel que es nacido del Espíritu. Juan 2:8

 

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