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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.
Li Wu, Jian Xiao, Hong Chen, Jia Li, Songzhi Jiang, Tongmin Wang
Nuclear Technology | Volume 188 | Number 1 | October 2014 | Pages 78-82
Technical Paper | Thermal Hydraulics | doi.org/10.13182/NT13-127
Articles are hosted by Taylor and Francis Online.
Main steam isolation valves are used in nuclear steam supply systems. Their sole function is to close, in the improbable event of a rupture in the steam piping. Computational analysis of the valve enables the study of system responses that are otherwise difficult to obtain. In this paper, transient behavior during the valve closing was simulated by static analysis with five typical runs of valve openings. One-way fluid-structure coupling simulations were conducted to investigate the flow patterns and to estimate the deformation and stress of the valve. Results show that the main pressure drop of flow occurs in the throat path. All the deformation and stress of the valve are within allowed limits to ensure safety.