ROTOR SAILS
Rotor Sail (Flettner Rotors) is modern mechanical sail that harness wind power to create additional thrust force for ships, which allows the ship to maintain speed but cut down the power to its main engine, causing less fuel consumption and fewer emissions entering our atmosphere.
With EEXI and CII coming into force today, and the regulations becoming mandatory in January 2023, Rotor Sails are a clean solution to managing carbon intensity and energy efficiency - reducing emissions by 5-20%. Dealfeng company is able to work out a scheme design for the optimal type selection and arrangement of rotor sails in accordance with the target ship's tonnage, speed and operating characteristics.
Rotor Sail Efficiency
Wind power is a safe, sustainable way to propel modern ships. Rotor sails enhance ship energy efficiency such as EEDI, EEXI and carbon intensity like CII while reducing fuel consumption, bunker costs and harmful emissions. Compared to other wind propulsion technologies in the market, rotor sails offer a much greater thrust force to propel the ship per square meter of sail area.
Below figure is a example for the comparison of the thrust generated by the installation of 3 (three) 30m x 5m Rotor Sails with the thrust of the main engine at ship speed of 19 knots for 174,000 CBM class LNG carrier. M/E propulsion is the equivalent thrust by main engine at NCR with 20% S.M. and the ship speed is 19 knots.
Simulation results - annual fuel savings and CO2 reduction with Rotor Sails:
-- Estimated annual time at sea is 292 days (80%)
-- Estimated propulsion diesel engine's SFOC: 156 g/kWh
-- Average Net Savings: 1340.6 kW
-- Average Net Saving: 8.2%
-- Annual Fuel Savings on Specific Route: 1026 tons
-- Annual CO2 Reduction on Specific Route: 3077.9 tons
-- Route: Calcascieu Pass (US) - Swinoujscie II (Poland) - Loaded - 19kts - draft 11.5m (design draft).
The fuel savings potential depends on ship speed, rotor speed, wind speed and direction conditions along the route and other factors. Precise predictions are made by route simulations for a specific ship.
System Composition
DEALFENG rotor sails have five regular sizes to available, such as 15m x 1.8m, 18m x 3m, 24m x 4m, 30m x 5m and 35m x 5m, the height of rotor sails also can be tailored according to the specific ship type. The composition of DEALFENG rotor sail system is divided into five parts below: ①multifunctional sensor ②bridge control panel ③power & control devices ④foundation and inner cylinder ⑤composite rotor.
Cookies Policy
Lorem ipsum, dolor sit amet consectetur adipisicing elit. Sed eveniet expedita cum autem, provident perferendis earum libero hic quasi excepturi modi voluptas eligendi ducimus quae nulla quis sapiente voluptate odio!
Lorem ipsum dolor sit, amet consectetur adipisicing elit. Aut excepturi tenetur sunt quo, sequi reprehenderit assumenda facere unde, deserunt odio consequuntur non totam vel suscipit. Eum officia reprehenderit sit, inventore adipisci consequuntur commodi ducimus quisquam vel culpa dolorem error modi, aut distinctio odio excepturi non ut reiciendis obcaecati quis repellendus quia fuga. Corporis, sunt maiores eum recusandae distinctio exercitationem iure repellat autem saepe non sed reiciendis repellendus dolore doloremque ducimus ab alias modi itaque praesentium rerum ratione molestiae porro ullam. Quasi nostrum quas quia tempora recusandae, iusto voluptate commodi consequatur consequuntur! Id minus sequi nam enim omnis vitae aliquam ipsum ratione, neque sint vero ab repellendus quis nihil doloremque dolorem et reprehenderit, rem, repellat reiciendis earum ut doloribus totam? Corrupti omnis, sapiente, veniam eaque unde possimus quia in sit nihil qui totam asperiores amet suscipit soluta maiores. Reprehenderit repellendus corporis nihil amet, voluptate atque minima soluta, hic ea libero neque quod! Non suscipit iste odio error eius recusandae voluptates reiciendis dolorum qui libero nostrum eveniet, quod magnam amet laboriosam quaerat numquam minus explicabo delectus consequuntur at voluptatum quibusdam aspernatur doloremque! Aliquam, atque, recusandae veritatis, ab enim temporibus earum qui sunt cumque ipsa ducimus eum explicabo exercitationem non quidem velit vel.
Section 01
Lorem, ipsum dolor sit amet consectetur adipisicing elit. Consequuntur eos quasi facilis animi maiores ut cum repellendus, placeat ipsam voluptate quos quas nobis optio ipsum at soluta doloribus sapiente ullam nemo? Dolore nisi labore, quas reprehenderit aspernatur quo nobis doloremque, numquam quis ipsa quidem dignissimos beatae necessitatibus nulla dolor obcaecati, minus explicabo? Aliquid laboriosam rerum omnis molestiae eveniet odit officia distinctio adipisci ad dolorem explicabo, optio ducimus! Dolore, excepturi laudantium? Aut sed vero expedita optio qui nihil consequatur, adipisci, minus rem repudiandae earum, eius quis deserunt maiores! Reiciendis vel maiores modi id debitis harum fugit, odit tempora tenetur maxime mollitia.
Lorem ipsum dolor sit amet consectetur adipisicing elit. Suscipit mollitia recusandae sunt a quod explicabo et cum, perspiciatis iste, excepturi voluptatibus. Quo ex iure veritatis exercitationem saepe consequatur repudiandae minima!
Section 02
Lorem ipsum dolor sit amet consectetur adipisicing elit. Harum, labore praesentium veritatis incidunt in doloribus id minima rem laudantium optio dolor debitis accusamus veniam dicta quidem ipsum porro mollitia necessitatibus aliquid corrupti saepe dignissimos blanditiis deleniti! Quia, esse culpa. Totam repellat veniam pariatur repudiandae saepe quae officia corrupti quis quo nesciunt iusto at incidunt vero, praesentium neque illo vel id voluptas deserunt dicta dignissimos quod! Odit, eligendi error? Commodi repellendus optio aliquid, quidem rerum eaque, atque soluta possimus, doloribus amet nemo. Soluta molestias possimus itaque atque aut porro est ipsa nobis aliquam repellendus corporis totam quo mollitia quasi at, tempora animi, reiciendis dolore dolorum. Voluptate perferendis cumque vero voluptatibus eaque? Voluptas consequatur alias minima obcaecati amet voluptates provident rerum ducimus doloribus voluptatem, quis mollitia unde tempore perferendis nostrum, debitis magni deserunt explicabo odio veritatis tenetur. Est recusandae debitis expedita nam amet itaque facilis ut reiciendis fugit molestiae quis porro aperiam veniam, deleniti explicabo quod vitae, dolore officia sapiente numquam ratione, et voluptatibus. Quos cupiditate excepturi harum amet impedit doloribus dicta, fuga distinctio fugit exercitationem ipsam molestias maxime doloremque voluptatum nesciunt saepe eligendi? Dignissimos culpa aperiam eaque animi delectus quaerat repellendus perferendis officiis in reprehenderit asperiores eligendi hic aut, labore quas? Labore esse quae temporibus, obcaecati facilis blanditiis asperiores quod nisi rerum eaque velit tempora molestias sit modi voluptate. Eaque ab sed eligendi quas ex deserunt tempore molestias dolor quo culpa, at velit, iste, perspiciatis aperiam rerum recusandae nobis similique vitae! Provident necessitatibus deleniti repellendus neque maiores assumenda enim, incidunt earum ipsum quo corrupti placeat vitae libero alias architecto eveniet facere sint minus dolore id voluptates. Quis quasi voluptas id ipsum architecto provident ipsam eaque! Repudiandae, delectus? Accusamus aliquam, ullam vitae corrupti autem culpa distinctio eius aliquid tempore pariatur tempora officiis sed eos hic, dolor natus, nesciunt ducimus facere adipisci. Iure!