Located thousands of meters under water, the factories must operate reliably for several decades. However, there is still no empirical data about the high water pressure's long-term effects on transformers and other network components.
As reported in "Pictures of the Future", Siemens is testing components for deep sea facilities in a special pressure chamber in Trondheim, Norway. Beginning in 2020, the Norwegian energy company Statoil plans to build oil and gas extraction facilities deep under water.
Subsea facilities are currently only set up in relatively shallow waters. In these systems, power cables and pipes connect pumps that are distributed across the seafloor to a floating platform. This technology can be used to extract about 40 percent of a raw material reservoir. However, self-sufficient deep sea factories could increase the rate to 60 percent.
These factories pump oil or gas directly out of the wells and compress the gas before transporting it to the surface. The facilities' power supply units (transformers, frequency converters, and switchgear) are also under water, where they provide the correct voltage. As a result, they can supply power to more pumps than surface systems. The only connections between the deep sea and the surface are a pipeline and an electricity and data cable.
The Siemens research center near Trondheim is ensuring the reliability of the deep sea power network by putting the components into a pressure chamber, where they have to withstand up to 460 bars for several months. This pressure is equivalent to the pressure found 4,600 meters under water. The researchers put the individual components into oil-filled pipes that are then placed inside the pressure chamber. The completed facilities will also be filled with oil instead of being installed into conventional air-filled housings.
The oil offsets the high pressure and has better cooling and electrical insulation properties than air, allowing the deep sea facilities to be more compact than would otherwise be the case. Special aging tests ensure that the parts will last for at least 20 years. Only components that pass all of the tests and the subsequent inspection are installed into the electricity network components.
Siemens has already assembled the first deep sea transformer in Trondheim. A switchgear system will be completed by the end of the year, and a frequency converter is scheduled to be finished by the end of 2014.
Dr. Norbert Aschenbrenner | Siemens InnovationNews
'Super yeast' has the power to improve economics of biofuels
18.10.2016 | University of Wisconsin-Madison
Engineers reveal fabrication process for revolutionary transparent sensors
14.10.2016 | University of Wisconsin-Madison
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
21.10.2016 | Health and Medicine
21.10.2016 | Information Technology
21.10.2016 | Materials Sciences