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 Fraunhofer ISE Supports Market Development of Solar Thermal Power Plants in the MENA Region
21.02.2018 | Fraunhofer-Institut für Solare Energiesysteme ISE

nachricht New tech for commercial Lithium-ion batteries finds they can be charged 5 times fast
20.02.2018 | University of Warwick

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: Attoseconds break into atomic interior

A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.

In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...

Im Focus: Good vibrations feel the force

A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.

By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...

Im Focus: Developing reliable quantum computers

International research team makes important step on the path to solving certification problems

Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Basque researchers turn light upside down

23.02.2018 | Physics and Astronomy

Finnish research group discovers a new immune system regulator

23.02.2018 | Health and Medicine

Attoseconds break into atomic interior

23.02.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>