KR-20260064229-A - Wing sail having wind speed adjustment unit and vessel with wing sail

Abstract

A wing sail equipped with a thrust enhancement unit and a vessel having the wing sail are disclosed. The wing sail comprises: a wing sail body; a thrust enhancement unit mounted on the suction surface and the pressure surface of the wing sail body, respectively, to form an airflow on the outside of the suction surface and the pressure surface; and a rotating support member that supports and rotates the wing sail body.

Inventors

• 김민일
• 이평국
• 김진규
• 이희동
• 박상준
• 안규중

Assignees

• 삼성중공업 주식회사

Dates

Publication Date

20260507

Application Date

20241031

Claims (7)

1. Wing sail body; A thrust enhancement unit mounted respectively on the suction side and the pressure side of the wing sail body to form an airflow on the outside of the suction side and the pressure side; and A wing sail comprising a rotating support member that supports and rotates the wing sail body.
2. In paragraph 1, The thrust enhancement unit is mounted in an installation groove formed concavely on the suction surface and the pressure surface, respectively, and The above thrust enhancement unit is, A circulation belt formed in a strip shape having an inner surface and an outer surface, having a size corresponding to the above-mentioned installation groove; and A wing sail comprising a plurality of rotating rollers arranged in the mounting groove in the height direction of the wing sail body to support the circulation belt in close contact with the inner surface of the circulation belt, and rotated according to the control of a controller to circulate and transport the circulation belt.
3. In paragraph 2, A wing sail in which the installation position of each of the rotating rollers supporting the circulation belt is specified within the installation groove, such that the shape of the remaining outer surface of the wing sail body excluding the installation groove and the outer outer surface of the circulation belt form a horizontal cross-sectional shape predetermined for the wing sail.
4. In paragraph 1, A wing sail in which each of the rotating rollers is controlled to rotate clockwise by the controller, so that an airflow conforming to the direction of wind flow is formed on the outside of the suction surface by a circulating belt circulating from the thrust enhancement unit mounted on the suction surface, and an airflow counteracting the direction of wind flow is formed on the outside of the pressure surface by a circulating belt circulating from the thrust enhancement unit mounted on the pressure surface.
5. In paragraph 1, A wing sail having an outer surface of the above-mentioned circulation belt that has a rough shape with protrusions formed thereon.
6. In paragraph 1, A wing sail, wherein a cap is mounted on the upper part of the wing sail to cover the wing sail body and the upper part of the thrust enhancement unit together.
7. Hull; and Includes one or more wing sails mounted on the hull, The wing sail mentioned above is, Wing sail body; A thrust enhancement unit mounted respectively on the suction side and the pressure side of the wing sail body to form an airflow on the outside of the suction side and the pressure side; and A vessel equipped with a wing sail, comprising a rotating support member that supports and rotates the wing sail body.

Description

Wing sail having a wind speed adjustment unit and vessel with a wing sail The present invention relates to a wing sail equipped with a thrust enhancement unit and a ship having the wing sail. Ships operating at sea are highly dependent on fossil fuels, and the annual carbon emissions of the shipping industry are estimated to exceed 1 billion tons. Accordingly, the International Maritime Organization (IMO) has declared the realization of carbon neutrality in the shipping industry by 2050 and set targets to reduce greenhouse gas emissions by at least 20% by 2030 and at least 70% by 2040. In response to stricter marine environmental regulations, the shipping industry is also considering ways to reduce fossil fuel consumption by equipping ships with wind-powered auxiliary devices such as wing sails and rotor sails, and by using wind to improve the propulsion of ships. Wing sails are manufactured in the shape of airfoils and mounted on ships, and when wind is applied to the wing sails, thrust acting in the direction of hull propulsion and side force acting in the direction of the hull's side are generated. Generally, attempts are being made to improve the efficiency of wing sails by varying the cross-sectional shape, but there is a limitation in that modifying the cross-sectional shape of the wing sail alone does not significantly improve the thrust of the ship using wind. The matters described in the technical background section of this invention are for the purpose of understanding the background of the invention and cannot be concluded as prior art already known to a person with ordinary knowledge in the field to which this technology belongs. FIG. 1 is a drawing showing a ship equipped with a wing sail. FIG. 2 is a diagram showing the concept of thrust and side force of a wing sail. FIG. 3 is a drawing illustrating the structure of a wing sail according to one embodiment of the present invention. FIG. 4 is a diagram showing the change in airflow around the wing sail according to the driving of a thrust enhancement unit according to an embodiment of the present invention. FIG. 5 is a drawing illustrating the shape of a thrust enhancement unit according to another embodiment of the present invention. FIG. 6 is a drawing showing the cap mounting shape of a wing sail according to one embodiment of the present invention. The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the invention to specific embodiments, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Embodiments of the present invention will be described below with reference to the accompanying drawings. In the accompanying drawings, identical components are given the same reference numerals, and in the description of the embodiments, identical or corresponding components may be briefly described or redundant descriptions may be omitted. In the drawings, each component may be depicted in an exaggerated size for convenience of explanation and understanding, and it is obvious that the present invention is not limited to the size and proportion of the components depicted in the drawings. FIG. 1 is a drawing showing a ship equipped with a wing sail, and FIG. 2 is a drawing showing the concept of thrust and side force of the wing sail. As illustrated in FIG. 1, a ship (10) is equipped with a plurality of wing sails (20). A wing sail (20) may include a wing sail body and a rotating support that supports and rotates the wing sail body. In order to improve the thrust of the ship (10) by using the wind blowing from the side, the rotating support can rotate the wing sail body in an appropriate direction according to the control of the controller. When the wing sail (20) is rotated in response to wind blowing from the side of the vessel (10), as shown in FIG. 2, thrust is applied to the wing sail (20) in the direction of travel of the vessel (10), and a side force is applied to the side of the vessel (10), which is a factor that hinders the maintenance of the course. Generally, the wing sail (20) is rotated to have an angle of attack (AoA) that has maximum lift and minimum drag in order to increase thrust. The wind blowing from the side of the ship (10) flows along both sides of the rotating wing sail body. At this time, thrust is generated in the direction of travel of the ship (10) by the pressure difference between the suction side of the wing sail (20), where relatively low pressure is applied, and the pressure side of the wing sail (20), where relatively high pressure is applied. In order to improve the thrust of the ship (10), various attempts are being made to modify the cross-sectional shape of the wing sail (20) so that a large pressure difference occurs betwee