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Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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BWXT announces nuclear manufacturing plant expansion
BWX Technologies announced today plans to expand and add advanced manufacturing equipment to its manufacturing plant in Cambridge, Ontario, Canada.
A $36.3 million USD ($50M CAD) expansion will increase the plant’s size by 25 percent—to 280,000 square feet—and another $21.7 million USD ($30M CAD) will be spent on new equipment to increase and accelerate its output of large nuclear components. The investment will increase capacity and create more than 200 long-term jobs for skilled workers, engineers, and support staff, according to the company.
G. Stange, H. Yeom, B. Semerau, K. Sridharan, M. Corradini
Nuclear Technology | Volume 182 | Number 3 | June 2013 | Pages 286-301
Technical Paper | Thermal Hydraulics | doi.org/10.13182/NT13-A16980
Articles are hosted by Taylor and Francis Online.
Pool boiling critical heat flux (CHF) measurements have been performed on stainless steel and zirconium wires in nanofluids consisting of oxide nanoparticles (7 to 250 nm) dispersed in water as well as in high-purity water after coating these wires with a variety of materials and methods. For the nanofluids study, nanoparticles of titania, alumina, zirconia, and yttria-stabilized zirconia (YSZ) were investigated for various sizes and concentrations. Results showed improvements in CHF in the range of 50% to 100%, with titania and zirconia exhibiting the highest and the lowest levels of improvement, respectively. Wires were coated separately with the same oxide nanoparticle materials, as well as pure titanium nanoparticles, using the electrophoretic deposition (EPD) technique and by nanofluid boiling. EPD coatings yielded superior and more consistent improvements in CHF values in clean water, suggesting that this could be a more practical approach than using nanofluids. Coating uniformity plays an important role in dictating the levels of CHF enhancement. In all cases, titania provided for high levels of improvement, while YSZ showed similarly high levels of improvement in some cases. Pure titanium coatings exhibited lower levels of improvement, indicating qualitatively that the lower wettability on metallic substrates (as compared to oxides) may play a role in dictating CHF improvements. Titanium, however, exhibits better adhesion to metallic substrates than do oxides, which is an important property for applications in a reactor environment. Given this, the improvements in CHF achieved by titanium coatings were sufficient to justify further study.