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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Donalds praises nuclear, urges microreactor development in Florida
Donalds
Byron Donalds, the Republican representative from Florida’s 19th Congressional District, is a well-known proponent of nuclear energy. In his latest op-ed, which appeared in The Floridian, Donalds describes himself as “unabashedly pronuclear” and characterizes his state as a supporter of nuclear power, with four operating reactors providing 69.3 percent of Florida’s carbon-free electricity, powering 2.3 million homes. He emphasizes, however, that “there’s so much nuclear potential yet to be realized in the Sunshine State.”
Environmental benefits: Donalds notes that nuclear energy provides “countless environmental benefits” to Floridians, as well as reliable electricity. The 1,132 acres on which the state’s St. Lucie nuclear power plant is located have mangrove swamps, beaches, marshes, and other wildlife habitats that are home to more than 180 species of animals—36 of which are endangered or threatened.
Rae-Joon Park, Kwang-Soon Ha, Sang-Baik Kim, Hee-Dong Kim, Ji-Hwan Jeong
Nuclear Technology | Volume 140 | Number 3 | December 2002 | Pages 266-278
Technical Paper | Thermal Hydraulics | doi.org/10.13182/NT02-A3338
Articles are hosted by Taylor and Francis Online.
An experimental study of critical heat flux in gap (CHFG) has been performed to investigate the inherent cooling mechanism in a hemispherical narrow gap. The objectives of the CHFG test are to measure critical power from a critical heat removal rate through the hemispherical narrow gap using distilled water with experimental parameters of system pressure and gap width. The CHFG test results have shown that a countercurrent flow limitation (CCFL) brings about local dryout at the small edge region of the upper part and finally global dryout in a hemispherical narrow gap. Increases in the gap width and pressure lead to an increase in critical power. The measured values of critical power are lower than the predictions made by other empirical CHF correlations applicable to flat plate, annuli, and small spherical gaps. The measured data on critical power in the hemispherical narrow gaps have been correlated using nondimensional parameters with a range of approximately ±20%. The developed correlation has been expanded to apply the spherical geometry using the Siemens/KWU correlation.