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At the end of January 2023, the Japan Marine United (JMU) shipyard delivered the GustoMSC designed and equipped offshore Wind Turbine Installation Vessel (WTIV) Blue Wind to Shimizu Corporation. The jack-up is specially designed to cope with the rough conditions of the waters around Japan. Leroy Manuhutu, Senior Service Engineer at GustoMSC, was onsite involved in the commissioning of Blue Wind.
Shimizu's WTIV jack-up, named Blue Wind, is equipped with a technological innovation: The world's first fully integrated offshore telescopic leg crane. When retracted, the crane has a safe working load of 2,500 tons with a lifting height of 118 meters above the deck. Fully extended the crane can lift loads of up to 1,250t at a height of 158m. This crane allows the vessel to install the offshore wind turbines components at great height as well as the heavy foundations for these turbines.
June 2023
Reading time: 2 min
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GustoMSC
Karel Doormanweg 35
3115 JD Schiedam
The Netherlands
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GustoMSC is recognized for providing advanced design & engineering consultancy for mobile offshore units and reliable supply.
We enable and support safe and efficient operations at sea, contributing to a sustainable future.
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Zana Sulaiman
CFD Expert Engineer
Unlocking the full potential of offshore units
There is a tendency to design ever larger jack-ups enabling the installation the ever lager offshore wind turbines. This makes stability and using accurate wind loads prediction even more important. Testing this with a scale model in the early design stage is expensive and time-consuming. Also, separate parts of the jack-up such as the legs, cranes and deck load cannot be accurately tested at model scale because of large scale effects involved. With GustoMSC’s CFD calculation method, it is also possible to calculate the wind loads acting on the components of the jack-up separately for wind loads even at full scale.
Less costs and more efficiency with the CFD method
By accurately predicting the wind loads on jack-ups and its components with the CFD method, the jack-up can be optimized at the beginning of the design phase. This not only results in significant cost savings, but also increases the efficiency of jack-ups. By using the CFD method in the design phase, more space can be created on the deck of the jack-up, allowing more cargo to be transported. In addition, a lighter jack-up also offers an advantage during transport from port to the offshore work location. A lighter jack up consumes less fuel and that results in a smaller industry footprint.
The main advantage of using CFD is that it can provide useful information at the start of the design process.
Zana Sulaiman
The same cross-sectional view of the velocity magnitudes but now with the deck load
Cross-sectional view of the velocity magnitudes along with the pressure distribution on the jack-up without deck load at a flow angle of 90 degrees
The GustoMSC experience
Backgrounds on the job
GustoMSC’s InSide Out
InSide
A storytelling platform about our offshore challenges
June 2023
Reading time: 2 min
At the end of January 2023, the Japan Marine United (JMU) shipyard delivered the GustoMSC designed and equipped offshore Wind Turbine Installation Vessel (WTIV) Blue Wind to Shimizu Corporation. The jack-up is specially designed to cope with the rough conditions of the waters around Japan. Leroy Manuhutu, Senior Service Engineer at GustoMSC, was onsite involved in the commissioning of Blue Wind.
A special crane, a special scoop
Leroy Manuhutu: We have a lot of responsibilities. This was especially the case with the Blue Wind project, as it included the first offshore telescopic leg crane. Testing the crane was a very critical moment in the project, and new to everyone. I remember we were in a live meeting with the office in Schiedam, The Netherlands, when we slowly telescoped the crane out for the first time. The Shimizu Project Managers looked on screens we had set up below deck to follow the operation. During this moment you could feel the tension, although we were confident it was going to work. And it did. This is also the moment when I think, I have the best job.
Name: Leroy Manuhutu
Job title: Senior Service Engineer
Experience: 11 years at GustoMSC and counting
Place of residence: Malta
Day’s abroad: 200+
Pros: Work with big machines all over the world
Cons: It involves a lot of waiting, preparation, and a strong stomach
The harsh environments for which Blue Wind is designed requires that the vessel and its equipment functions correctly to ensure the safety of both the module and the people and equipment they are housing. To ensure that the jacking system and crane were up to the task, they have been taken through a thorough testing program. Then once on location and installed, they were taken through a commissioning checklist to ensure proper installation and that the unit is functioning correctly. Additionally, the operating Shimizu team followed a GustoMSC training including simulator training with the telescopic crane onboard the Blue Wind vessel. The whole program of testing and training entails close cooperation with the JMU team.
Thorough testing program
Leroy Manuhutu: Communication during commissioning is one of the parts that is very interesting. We know what we want to test, how it needs to be tested, but we have to communicate with the people on board. Mainly to explain what we want and how we see it. This part of commissioning can be tough. This is also the reason to wear a helmet on your head, otherwise you will pull out all your hair. Working with people from all different backgrounds is not always easy, sometimes it cost some energy, sometimes you need to change your approach. But when we are onsite, we make it work.
The first project for which the vessel will be deployed is the 9 MW Nyuzen Wind Farm in Toyama Bay off the coast of Nyuzen Town. There, the jack-up will install three 3 MW wind turbines that are scheduled to be operational in August 2023.
Blue Wind’s first mission
Leroy Manuhutu: When I look back at the Blue Wind project, I feel blessed that I have been involved in this project from an early stage. Both the jacking system and the crane are new designs with its own challenges. It was a great project, and I am proud that we have delivered the vessel with success to the client. It was a bumpy road with a beautiful view.
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Leroy Manuhutu
Senior Service Engineer
GustoMSC
Karel Doormanweg 35
3115 JD Schiedam
The Netherlands
The Pioneers of Offshore Engineering
GustoMSC is recognized for providing advanced design & engineering consultancy for mobile offshore units and reliable supply.
We enable and support safe and efficient operations at sea, contributing to a sustainable future.
Please subscribe to the newsletter so we can keep you up to date with our latest stories and extra news updates.
Subscribe
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Photography and video: Leroy Manuhutu
Shimizu's WTIV jack-up, named Blue Wind, is equipped with a technological innovation: The world's first fully integrated offshore telescopic leg crane. When retracted, the crane has a safe working load of 2,500 tons with a lifting height of 118 meters above the deck. Fully extended the crane can lift loads of up to 1,250t at a height of 158m. This crane allows the vessel to install the offshore wind turbines components at great height as well as the heavy foundations for these turbines.