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The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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NRC updating GEIS rule for new nuclear technology
The Nuclear Regulatory Agency is issuing a proposed generic environmental impact statement (GEIS) for use in reviewing applications for new nuclear reactors.
In an April 17 memo, NRC secretary Carrie Safford wrote that the commission approved NRC staff’s recommendation to publish in the Federal Register a proposed rule amending 10 CFR Part 51, “Environmental Protection Regulations for Domestic Licensing and Related Regulatory Functions.”
T. Kakuta, S. Konishi, Y. Kawamura, M. Nishi, T. Suzuki
Fusion Science and Technology | Volume 39 | Number 2 | March 2001 | Pages 1083-1087
Tritium | doi.org/10.13182/FST01-A11963388
Articles are hosted by Taylor and Francis Online.
Electrochemical properties of the ceramic protonic conductor cell were investigated to evaluate its feasibility of hydrogen pumping for the purpose of tritium extraction in fusion fuel system. Experiments were performed at 873~1073K. One side of the cell was exposed to pure hydrogen and the other was exposed to 0.01~10 vol. % of hydrogen balanced with helium. Static and dynamic hydrogen pumping properties of the cell were evaluated. Electromotive force generated between two electrodes by the difference of hydrogen concentration was measured as static characteristics. In the region of the ratio of hydrogen partial pressure up to 100, the electrochemical potential driven by the difference of hydrogen partial pressure agreed well with the theoretical values derived from Nemst's law. The hydrogen pumping capacity was measured as the current density with applied DC. Hydrogen was selectively transferred at the current density of 7mA/cm2 at 873K and 9mA/cm2 at 973K, which satisfy our projected requirement (above 5mA/cm2) for applying to the blanket tritium recovery system. Voltage-induced degradation of the cell material accompanied with water vapor generation was observed, and voltage region to avoid this degradation was identified.