Featured Research

from universities, journals, and other organizations

CASL milestone validates reactor model using TVA data

Date:
July 10, 2013
Source:
DOE/Oak Ridge National Laboratory
Summary:
Today, the Consortium for Advanced Simulation of Light Water Reactors (CASL) announced that its scientists have successfully completed the first full-scale simulation of an operating nuclear reactor. CASL is modeling nuclear reactors on supercomputers to help researchers better understand reactor performance with much higher reliability than previously available methods, with the goal of ultimately increasing power output, extending reactor life, and reducing waste.

This CASL visualization shows the thermal distribution of neutrons in Watts Bar Unit 1 Cycle 1 reactor core at initial criticality, as calculated by the VERA program.
Credit: Image courtesy of Oak Ridge National Laboratory

Today, the Consortium for Advanced Simulation of Light Water Reactors (CASL) announced that its scientists have successfully completed the first full-scale simulation of an operating nuclear reactor. CASL is modeling nuclear reactors on supercomputers to help researchers better understand reactor performance with much higher reliability than previously available methods, with the goal of ultimately increasing power output, extending reactor life, and reducing waste.

Simulation results from the Virtual Environment for Reactor Applications (VERA) program, developed by CASL, were compared with actual data provided by the Tennessee Valley Authority's (TVA) Watts Bar Nuclear Plant in Tennessee, which confirmed its accuracy.

"VERA's capabilities range from simulating single fuel pins to modeling an entire operational reactor core," said Jess Gehin of Oak Ridge National Laboratory's Reactor and Nuclear Systems Division. "It addresses operational challenges and supports increased power generation by exploring greater efficiency and life extensions."

During cycle startup of commercial nuclear power reactors, technicians perform a series of tests to confirm the reactor is operating as expected. For CASL, results of previous tests are useful for demonstrating the accuracy of the VERA software. As a CASL partner, TVA provided detailed historical information and measured operational data from the Watts Bar plant to allow comparisons of the VERA simulation.

The simulations of the reactor startup tests are just a first step in the demonstration of VERA. CASL is extending the program's capability to simulate full power operation of the TVA reactor, which will require further VERA development to integrate the nuclear and thermal hydraulic physics. These additional capabilities will allow researchers to pursue breakthroughs in understanding key phenomena in the operating reactors.

CASL, headquartered at ORNL, is one of the Department of Energy's Energy Innovation Hubs. First established in 2010, CASL brings together industry, academia, and national labs to provide advanced modeling and simulation solutions for commercial reactors. Its mission is to confidently predict the performance of nuclear reactors through comprehensive science-based modeling and simulation technology that is deployed and applied broadly throughout the nuclear energy industry to enhance safety, reliability and economics.

The Hub's 10 core partners include: the Electric Power Research Institute, Idaho National Laboratory, Los Alamos National Laboratory, Massachusetts Institute of Technology, North Carolina State University, Sandia National Laboratories, Tennessee Valley Authority, University of Michigan, Westinghouse Electric Company and Oak Ridge National Laboratory. More information about CASL is available at http://www.casl.gov.


Story Source:

The above story is based on materials provided by DOE/Oak Ridge National Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

DOE/Oak Ridge National Laboratory. "CASL milestone validates reactor model using TVA data." ScienceDaily. ScienceDaily, 10 July 2013. <www.sciencedaily.com/releases/2013/07/130710155736.htm>.
DOE/Oak Ridge National Laboratory. (2013, July 10). CASL milestone validates reactor model using TVA data. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2013/07/130710155736.htm
DOE/Oak Ridge National Laboratory. "CASL milestone validates reactor model using TVA data." ScienceDaily. www.sciencedaily.com/releases/2013/07/130710155736.htm (accessed July 31, 2014).

Share This




More Matter & Energy News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Britain Testing Driverless Cars on Roadways

Britain Testing Driverless Cars on Roadways

AP (July 30, 2014) British officials said on Wednesday that driverless cars will be tested on roads in as many as three cities in a trial program set to begin in January. Officials said the tests will last up to three years. (July 30) Video provided by AP
Powered by NewsLook.com
7 Ways to Use Toothpaste: Howdini Hacks

7 Ways to Use Toothpaste: Howdini Hacks

Howdini (July 30, 2014) Fresh breath and clean teeth are great, but have you ever thought, "my toothpaste could be doing more". Well, it can! Lots of things! Howdini has 7 new uses for this household staple. Video provided by Howdini
Powered by NewsLook.com
Amid Drought, UCLA Sees Only Water

Amid Drought, UCLA Sees Only Water

AP (July 30, 2014) A ruptured 93-year-old water main left the UCLA campus awash in 8 million gallons of water in the middle of California's worst drought in decades. (July 30) Video provided by AP
Powered by NewsLook.com
Smartphone Powered Paper Plane Debuts at Airshow

Smartphone Powered Paper Plane Debuts at Airshow

AP (July 30, 2014) Smartphone powered paper airplane that was popular on crowdfunding website KickStarter makes its debut at Wisconsin airshow (July 30) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins