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Program

Asian Offshore Wind, Wave and Tidal Energy Conference Series 2024

Technical tour 1 (October 23, afternoon)

KRISO - Deep Ocean Engineering Research Center (DOERC), Busan

The Deep Ocean Engineering Research Center (DOERC) was established with the goal of securing a research base through industry support, using the world's largest deep ocean engineering basin for testing and evaluation and developing new technologies in the offshore plant field, such as marine renewable energy plants. DOERC consists of a research building, the Deep Ocean Engineering Basin (DOEB), and an offshore engineering center. DOEB began operations in 2021 and conducts more than 20 model tests annually. The main specifications are as follows: the facility has dimensions of 100m in length, 50m in width, and 15m in depth. The diameter of the pit is 12m, and the depth from

the basin bottom is 35m, making the total feasible depth of DOEB 50m. At a typical 1/60 model scale, it is possible to simulate a deep ocean environment of more than 3,000m. The facility includes a wave generation system, current generation system, wind generator, false bottom with artificial bottom structure, and a towing carriage system. It is designed for the performance evaluation and verification of marine structures under deep-sea environments, flow visualization, and wave pattern analysis.
※ Webpage: https://www.kriso.re.kr/menu.es?mid=a20203000000

KIOST - BladeLab, Busan

KIOST – BladeLab is an experiment building for components of tidal current energy converters and is one of the test facilities of KIOST (Korea Institute of Ocean Science & Technology). It is located at the KIOST headquarters in Busan. To promote the dissemination of tidal current energy converters, the Ministry of Ocean and Fisheries in Korea has supported establishing a sea test bed for tidal current energy converters since 2017, and this building was completed in 2021. KIOST – BladeLab is a testing facility that verifies the performance of major components used in tidal current power generators. It consists of a blade proving ground, a material laboratory, and a control room. In the case of the blade proving ground, blade lengths up to 12 m can be tested, and three actuators are built to enable three-point loading. To fix the blade, the blade test site has a reaction wall, reaction bed, and side frame. The maximum load capacity of the actuator can apply a load of 500 kN, and the

maximum stroke is 1,500 mm. In addition, ultrasonic inspection equipment is equipped to evaluate the structural integrity of steel welds, and the material laboratory is equipped with two universal testing machines with a maximum capacity of 1,500 kN and 300 kN.

KIOST - Physical Experiment Building (PEB), Busan

Physical Experiment Building (PEB) is a modern and exceptional physical modeling facility with various experimental equipment that can generate waves or flows artificially. PEB is a multifunctional facility comprising one basement and two ground floors, with a height of 14 meters and an area of 4,005 m². The first floor consists of a wave basin, two wave flumes, and a tilting flow channel. In addition, there are rooms to support physical experiments. The second floor comprises a control room, office, and meeting room. In particular, there is a four-sided catwalk for easily observing and monitoring the physical experiments. Underneath the first floor, there are two reservoirs for keeping water for experiments, with capacities of 3,300 tons and 300 tons, respectively. The wave basin is 45.3 meters long, 44.5 meters wide, and 1.2 meters high, and it can generate waves using seven units of uni-directional piston-type wave makers. It allows for the observation of the performance of

test models with different angles of incident waves, providing comprehensive analysis. These characteristics make it suitable for studying testing ships, complex harbors, breakwaters, and shoreline changes. The wave flumes are long wave tanks whose width is much less than their length. This test facility is well-suited to study the two physical components of horizontal and vertical vectors. The tilting flow channel is a duct that generates flows without waves. This facility is one of the most important tools for testing tidal current power devices or river hydrodynamics.

Technical tour 2 (October 24, all day)

KRISO - Wave Energy Test Site (WETS), Jeju

KRISO – WETS is an open sea test site for wave energy converters and is one of the test facilities of KRISO (Korea Research Institute of Ships and Ocean engineering). It is located approximately 1 to 2 km from the western shore of Jeju Island. To promote the dissemination of wave energy and accelerate the technology development of wave energy converters (WECs), the Ministry of Oceans and Fisheries in Korea supports the project for the development of the open sea test site. The development of KRISO - WETS began in 2016, and it has been operational since 2020. It consists of 5 test berths, submarine cables, offshore/onshore substations, a SCADA system (for ship voyage safety, met-ocean monitoring, and facility safety), a control room, and a customer center. Three test berths are located in water depths of 20m, while the others are situated at depths of 40m and 60m, respectively. The allowable capacity to the electrical national grid is 5 MW. Each submarine cable has

a capacity of 5 MW at a maximum voltage of 22.9kV. An oscillating water column WEC (2 × 250kW) is operational at the 1st berth of the offshore substation. Additionally, we are conducting a demonstration project to produce hydrogen in the ocean by utilizing electricity generated through wave power. The OWC is also utilized as a test bed for digital twin technology. Technology development for green hydrogen production from the electricity converted from wave energy by OWC is ongoing. The fifth berth, located at a water depth of 60 meters, is planned to be used for testing a floating offshore wind turbine.
※ Webpage: https://www.kriso.re.kr/menu.es?mid=a20203000000