- #1
Keith_McClary
- 752
- 1,503
- TL;DR Summary
- Installing Offshore Wind Turbine
Two minute time lapse video.
I presume so, yes. Here's a case from 10 years ago. In the first picture, you see them lifting cargo using the crane on a docked ship that did not have those 4 feet. 10 seconds later, it was capsized.berkeman said:Very cool, thanks for sharing.
Do they raise the ship like that to make it a steadier platform for the crane?
I think they would be concerned about wind.Dr.D said:How smooth does the water have to be for this assembly to happen?
I'm sure that is true, but I was hoping someone could quantify the situation in terms of what is an acceptable sea state.Keith_McClary said:I think they would be concerned about wind.
Once it's jacked up it shouldn't matter.Dr.D said:I'm sure that is true, but I was hoping someone could quantify the situation in terms of what is an acceptable sea state.
Look at the first 4 seconds of the video in the OP. Those yellow jack stands were in place before this ship arrived. We don't know from the video how or when they were placed.berkeman said:It does seem like if there were much wave action that would make the rig too unstable to drop the jack stands cleanly onto the seafloor.
It appears there are various designs depending on depth.anorlunda said:how those jack stands are attached to the sea bottom
Offshore wind turbines work by harnessing the power of wind to generate electricity. The turbine blades are designed to spin when wind blows against them, which turns a rotor connected to a generator. The generator then converts the rotational energy into electricity, which is then transmitted to shore through cables.
The installation process for an offshore wind turbine typically involves several steps. First, the foundation is installed on the seabed, which provides stability for the turbine. Then, the tower and nacelle (which houses the generator) are lifted onto the foundation using specialized vessels. Finally, the blades are attached to the nacelle and the turbine is connected to the grid.
Offshore wind turbines have several advantages over onshore turbines. They can harness stronger and more consistent winds, which results in higher energy production. They also have less visual impact and are less noisy, as they are located further from populated areas. Additionally, offshore wind turbines have the potential to provide more energy due to their larger size and ability to be placed in deeper waters.
Offshore wind turbines require regular maintenance to ensure they are operating efficiently and safely. This is typically done by specialized maintenance vessels that can access the turbines at sea. Maintenance tasks may include cleaning the blades, inspecting and repairing any damage, and replacing any worn components.
Offshore wind turbines have relatively low environmental impacts compared to other forms of energy generation. They do not emit any air pollution or greenhouse gases, and their visual impact can be minimized by proper placement. However, there are potential impacts on marine life, such as disturbance to marine mammals and birds, and potential changes to the marine ecosystem. These impacts are being studied and mitigated through careful planning and monitoring.