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Division Spotlight
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
Commercial nuclear innovation "new space" age
In early 2006, a start-up company launched a small rocket from a tiny island in the Pacific. It exploded, showering the island with debris. A year later, a second launch attempt sent a rocket to space but failed to make orbit, burning up in the atmosphere. Another year brought a third attempt—and a third failure. The following month, in September 2008, the company used the last of its funds to launch a fourth rocket. It reached orbit, making history as the first privately funded liquid-fueled rocket to do so.
Byoung-Uhn Bae, Yong-Soo Kim, Goon-Cherl Park
Nuclear Science and Engineering | Volume 154 | Number 1 | September 2006 | Pages 74-93
Technical Paper | doi.org/10.13182/NSE06-A2619
Articles are hosted by Taylor and Francis Online.
As a result of experiments with the Upper Plenum Test Facility and the 1400-MW(electric) Advanced Power Reactor (APR1400), sweepout in the downcomer has been identified as playing an important role in the depletion of the core coolant inventory during a large-break loss-of-coolant accident. In order to identify the sweepout mechanism and estimate the amount of coolant discharged during sweepout, separate-effects tests were performed in a rectangular-type test apparatus 1/5 the scale of the APR1400 downcomer. The experimental results showed that the sweepout was dominantly influenced by the hydraulic behaviors of coolant and steam near the intact cold leg. A sweepout model was developed by correlating the experimental results to analytically derived nondimensional parameters. The developed model showed applicability to the prototype, as the experimental results of the counterpart tests were in good agreement, within <25.0% of the uncertainty band.