Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Argonne's nuclear energy research moves toward greater reliance on computer simulation

29.11.2007
The U.S. Department of Energy’s Argonne National Laboratory is taking its nuclear energy research into new territory – virtual territory that is.

With the recent arrival of the new IBM Blue Gene/P and the lab’s development of advanced computer models, Argonne has a critical role in making it possible to burn repeatedly nuclear fuel that now sits as waste, thus closing the nuclear fuel cycle and reducing the risk of nuclear proliferation.

The move toward greater reliance on computer simulation and modeling to conduct nuclear energy research is a progressive trend seen in other areas of scientific research supported by DOE.

"High-speed supercomputers are increasingly tackling difficult problems that could once be addressed only in a laboratory setting," Argonne Director Robert Rosner said.

"The traditional approach to developing nuclear energy technologies is to do a bunch of experiments to demonstrate a process or reaction," said Mark Peters, deputy to the assistant laboratory director of applied science and technology and Argonne’s program manager for the Global Nuclear Energy Partnership. "What Argonne is doing is creating a set of integrated models that demonstrate and validate new technologies, using a smaller number of experiments."

Moreover, "advanced simulation can greatly reduce facilities' costs by allowing us to better identify and target the physical experiments which underlie their design," said Andrew Siegel, a computational scientist at Argonne and the lab’s nuclear simulation project leader.

Siegel and a team of Argonne computational scientists are in the throes of refining computer codes that will eventually be used to conduct the underlying scientific research that will support the development of next generation nuclear systems such as advanced fast reactors, Siegel said. "We will use advanced simulation to improve and optimize the design and safety of advanced fast reactors," he said.

The Sodium Fast Reactor (SFR) design, which was born at Argonne, is a key part of President Bush’s Global Nuclear Energy Partnership, a strategy that will significantly reduce the radioactivity and volume of waste requiring disposal and reduce the risk of nuclear proliferation. SFR designs are safe, capable of reducing the volume and toxicity of nuclear waste, and economically competitive with other electricity sources.

Using internal lab funding initially and GNEP funding more recently, Argonne computational scientists are designing a modern suite of tools called SHARP – Simulation-based High-efficiency Reactor Prototyping, Siegel said. The SHARP toolkit is a collection of individual software components that digitally mimic the physical processes that occur in a nuclear reactor core, including neutron transport, thermal hydraulics and fuel and structure behavior, Siegel explained.

SHARP has been developed to fully leverage Argonne’s new Advanced Leadership Computing Facility, which is made up of the Blue Gene/P, an IBM computer that is designed to operate at a sustained rate of 1-petaflop per second and capable of reaching speeds of 3 petaflops.

SHARP will build upon and may eventually replace existing computer codes that are used to conduct safety evaluations of today’s portfolio of aging nuclear power reactors. Furthermore, those older codes, while adequate for evaluating the scoping designs of next generation reactors, are not as well-equipped to validate the performance of new reactor concepts now under design, Siegel said. A simulation tool like SHARP, which is being written specifically to test SFR design concepts, have the potential to shave off millions of dollars in reactor design development and construction, he said.

The kind of modeling and simulation work taking place at Argonne in support of the development of advanced nuclear energy systems is not by accident. "We see Argonne as the one place that can pull off the creation of advanced simulation tools that will be able to successfully replace some types of experiments," Siegel said.

The reason: Argonne has the biggest concentration of scientists involved in fast reactor design and fuel reprocessing technologies – expertise that is essential to refining SFR design concepts. "This is the center of brain power for nuclear energy research," Siegel said. Moreover, Argonne’s nuclear engineers and chemical engineers have already been collaborating with the lab’s computer scientists to develop precise computer simulations of the process of physical changes that would occur in an SFR, as well as other important aspects of the nuclear fuel cycle (e.g., separations and processing technologies).

Angela Hardin | EurekAlert!
Further information:
http://www.anl.gov

More articles from Power and Electrical Engineering:

nachricht Researchers use light to remotely control curvature of plastics
23.03.2017 | North Carolina State University

nachricht TU Graz researchers show that enzyme function inhibits battery ageing
21.03.2017 | Technische Universität Graz

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: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Northern oceans pumped CO2 into the atmosphere

27.03.2017 | Earth Sciences

Fingerprint' technique spots frog populations at risk from pollution

27.03.2017 | Life Sciences

Big data approach to predict protein structure

27.03.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>