Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

4 power supply sources for the experimental EFDA-JET fusion reactor

15.12.2005


JEMA has been contracted directly by the European Commission (commissioned through the European Fusion Development Agreement, EFDA) to design, construct and install 4 sources of power supply, each capable of producing 20 million watts of energy, for the European experimental fusion reactor installations located at Culham in the United Kingdom. The project is expected to last three years.



The contract is a sound example of the confidence these European agencies have in the work of JEMA, especially as this is a re-order on a previous contract in 2003 when the company supplied 2 units of these energy supply sources for the same centre.

Fusion reactions are produced within the stars at extremely high temperatures, thus generating energy in the form of light and heat, mainly with hydrogen as the raw material. In this type of reactor these reactions inside a star are being imitated in order to obtain energy. In fact the EFDAJET reactor is the largest in the world currently in operation and, as such, the reference for the scientific community throughout the world working in this field. At the same time, it is the system from which the new ITER reactor is to be developed, and which is to built thanks to an international agreement which will be the greatest scientific-technical project undertaken by mankind.


To explain in a nutshell the importance and scope of the project, the JEMA supply sources feed energy to the microwave systems that heat up the deuterium (hydrogen isotope) stored inside the reactor, with the aim of reaching a temperature of some 150 million degrees, necessary for the initiation of a fusion reaction

These power supply sources consist of special-characteristics equipment that are manufactured in a customised manner and are at the cutting edge of what is today manufacturable and the latest available technology.

Each supply source produces 20 million watts of electrical power (about 10% of the energy produced at the power station in the Basque port of Pasajes) in pulse format and using 130,000 volts d.c. power supply at 130 amperes, with high quality and precision specifications: less than 1,000 volts of error; 150 microseconds rising ramp and 7 microseconds falling ramp. Over a period of 20 seconds the power supply source is capable of generating 256 pulses, which is equivalent to short-circuiting the energy source itself on its exit.

To achieve the specifications required it has been necessary to develop a wide range of innovative elements and configurations (260,000 volt insulating transformers, high-voltage static crowbars, DSP control, refrigeration systems for water, etc.), which have required joint work with various research centres.

Irati Kortabitarte | alfa
Further information:
http://www.basqueresearch.com

More articles from Power and Electrical Engineering:

nachricht Energy hybrid: Battery meets super capacitor
01.12.2016 | Technische Universität Graz

nachricht Tailor-Made Membranes for the Environment
30.11.2016 | Forschungszentrum Jülich

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

Im Focus: Fraunhofer ISE Develops Highly Compact, High Frequency DC/DC Converter for Aviation

The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

UTSA study describes new minimally invasive device to treat cancer and other illnesses

02.12.2016 | Medical Engineering

Plasma-zapping process could yield trans fat-free soybean oil product

02.12.2016 | Agricultural and Forestry Science

What do Netflix, Google and planetary systems have in common?

02.12.2016 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>