KR-20260067592-A - Wing sail unit with thrust-enhancing element and vessel with wing sail unit

Abstract

A wing sail unit equipped with a thrust enhancement element and a vessel equipped with the wing sail unit are disclosed. The wing sail unit comprises: a wing sail body having a concave installation groove formed in each of the leading edge and the trailing edge; a leading edge airflow generator formed in a cylindrical shape having a diameter of a predetermined size and a height corresponding to the wing sail body, and disposed in the installation groove formed in the leading edge; and a trailing edge airflow generator formed in a cylindrical shape having a diameter of a predetermined size and a height corresponding to the wing sail body, and disposed in the installation groove formed in the trailing edge.

Inventors

• 김희정
• 박형길
• 이평국
• 김진규
• 이희동
• 이용철

Assignees

• 삼성중공업 주식회사

Dates

Publication Date

20260513

Application Date

20241106

Claims (7)

1. A wing sail body having concave mounting grooves formed in the front and rear edges, respectively; A leading edge airflow generator formed in a cylindrical shape having a diameter of a predetermined size and a height corresponding to the wing sail body, and disposed in an installation groove formed in the leading edge; and A wing sail unit equipped with a thrust enhancing element, comprising a trailing airflow generator formed in a cylindrical shape having a diameter of a predetermined size and a height corresponding to the wing sail body, and disposed in an installation groove formed in the trailing edge.
2. In paragraph 1, A wing sail unit equipped with a thrust enhancing element, wherein each of the above-mentioned leading edge airflow generator and the above-mentioned trailing edge airflow generator is driven to rotate in a forward or reverse direction around a vertical axis according to the control of a controller, and is controlled to rotate in a direction that accelerates the airflow on the intake side of the wing sail body.
3. In paragraph 1, It further includes a base portion coupled to support the wing sail body, the leading edge airflow generator, and the trailing edge airflow generator from below, A wing sail unit equipped with a thrust-enhancing element, wherein the base portion is coupled to a rotating support portion installed on a ship and rotates horizontally by the rotational drive of the rotating support portion according to the control of a controller based on wind direction.
4. In paragraph 3, A wing sail unit equipped with a thrust-enhancing element, further comprising a cap portion mounted to completely cover the upper end of each of the wing sail body, the leading edge airflow generator, and the trailing edge airflow generator.
5. In paragraph 1, A wing sail unit equipped with a thrust enhancing element, wherein the wing sail body has an outer surface formed in a horizontal cross-sectional shape among a symmetrical wing shape, a semicircular shape, a semi-elliptical shape, and an asymmetrical shape having a camber, and the remaining outer surface, excluding the mounting grooves formed in the leading edge and the trailing edge, respectively.
6. In paragraph 1, A wing sail unit equipped with a thrust enhancing element, wherein one or more of protrusions and concave grooves are formed on the outer surface of the leading edge airflow generator and the trailing edge airflow generator, and one or more of the protrusions and concave grooves formed on the outer surface of the leading edge airflow generator and the trailing edge airflow generator are formed to be continuous in the longitudinal direction of the leading edge airflow generator and the trailing edge airflow generator.
7. Hull; and Includes one or more wing sail units mounted on the hull, The above wing sail unit is, A wing sail body having concave mounting grooves formed in the front and rear edges, respectively; A leading edge airflow generator formed in a cylindrical shape having a diameter of a predetermined size and a height corresponding to the wing sail body, and disposed in an installation groove formed in the leading edge; A trailing airflow generator formed in a cylindrical shape having a diameter of a predetermined size and a height corresponding to the wing sail body, and disposed in an installation groove formed in the trailing edge; A base portion coupled to support the wing sail body, the leading edge airflow generator, and the trailing edge airflow generator from below; and It includes a cap portion mounted to completely cover the upper end of each of the wing sail body, the leading edge airflow generator, and the trailing edge airflow generator, wherein A vessel equipped with a wing sail unit, wherein each of the above-mentioned leading airflow generator and the above-mentioned trailing airflow generator is rotated in a direction that accelerates the airflow on the suction side of the wing sail body according to the control of a controller.

Description

Wing sail unit with thrust-enhancing element and vessel with wing sail unit The present invention relates to a wing sail unit equipped with a thrust enhancement element and a ship equipped with the wing sail unit. Ships operating on the seas rely heavily on fossil fuels, and the shipping industry's annual carbon emissions are estimated to exceed 1 billion tons. Accordingly, the International Maritime Organization (IMO) has set a goal to reduce greenhouse gas emissions by at least 20% by 2030 and at least 70% by 2040, and has declared the realization of carbon neutrality in the shipping industry by 2050. In response to stricter marine environmental regulations, the shipping industry is 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 ships' propulsion. When wind is applied to a wing sail, which is manufactured in the shape of an airfoil and mounted on a ship, thrust is generated in the direction of hull propulsion and a side force is generated in the direction of the hull's side that hinders the maintenance of the course. At this time, in order to generate maximum thrust, the wing sail is rotated to have an appropriate angle of attack (AoA). Currently, various attempts are being made to modify the cross-sectional shape of the wing sail body in order to improve the efficiency of the wing sail. However, there is a limitation in that modifying only the cross-sectional shape of the wing sail body does not improve the thrust enhancement effect of the ship using wind to a satisfactory level. 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 shape of a wing sail unit according to an 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 element according to one embodiment of the present invention. FIG. 5 is a drawing illustrating the shape of a wing sail unit according to another 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. Referring to FIG. 1, a ship (10) is equipped with a plurality of wing sails (20) as wind power assist devices. The wing sail (20) may include a wing sail body (22) and a rotation support member (24) that fixes and supports the wing sail body (22) and rotates it around a preset rotation axis (P). In order to increase the thrust of the vessel (10) by utilizing the wind blowing from the side, the rotating support (24) is driven to rotate the wing sail body (22) in an appropriate direction. The operation of the rotating support (24) can be controlled by a controller (not shown) provided on the vessel (10) or the wing sail (20). When the wing sail body (22) 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 body (22) in the direction of travel of the vessel (10), and a side force, which is a factor hindering the maintenance of the course, is applied in the lateral direction of the vessel (10). Generally, the controller controls the rotation operation of the wing sail body (22) so that it is rotated to an angle of attack (AoA) that has maximum lift and minimum drag, thereby maximizing thrust on the vessel (10). The wind blowing from the side of the ship (10) flows along both sides of the rotating wing sail body (22). At this time, thrust is gene