Experimental study and kinetic analysis of sodium-water chemical reaction mechanism in steam generator of sodium-cooled fast reactor

Kikuchi, Shin ; Seino, Hiroshi ; Kurihara, Akikazu ; Ohshima, Hiroyuki

For the purpose of elucidating the mechanism of the sodium-water surface reaction in a steam generator of sodium-cooled fast reactors, kinetic study of the sodium (Na)-sodium hydroxide (NaOH) reaction has been carried out by using Differential Thermal Analysis (DTA) technique. It was reconfirmed that sodium monoxide (Na $_{2}$ O) generation should be considered during the sodium-water reaction in spite of variation of volume fraction (Na:NaOH). Na, NaOH and Na $_{2}$ O as major chemical species were identified from the X-ray diffraction (XRD) analysis of the residues after the DTA experiment. From XRD analysis, it seems that Na $_{2}$ O is reaction product and reaction ratio is less than 100 percent.

Language	:	Japanese
Journal	:	Nihon Kikai Gakkai Rombunshu, B
Volume	:	79
Number	:	799
Pages	:	p.271 - 275
Publication Year/Month	:	2013/03
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Paper URL	:	https://doi.org/10.1299/kikaib.79.271
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Keywords	:	no keyword
Research Facility	:	高速炉安全性試験施設
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Registration No. : AA20120470
JAEA Abstracts No. : 43000434
Paper Submission No. : 15572

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