611 HTTR水素製造システム内の水素同位体透過過程(オーガナイズドセッション : 応用熱工学1)

概要

論文の詳細を見る
Permeation of hydrogen isotope through a high-temperature alloy used for heat exchanger and reformer tubes is an important problem in the hydrogen production system connected to the high-temperature engineering test reactor (HTTR). An objective of this study is to investigate an effect of existence of hydrogen (H_2) in a tube outside on the amount of permeated deuterium (D_2) through the tube. It was found that the amount of permeated D_2 decrease with increasing the partial pressure of H_2 in the tube outside when the partial pressure of D_2 in the tube is lower than 1OOPa and that of H_2 in the tube outside is larger than 1OkPa. The amount of permeated D_2 on counter permeation process was predicted quantitatively by using the effectiveness factor for diffusivity of deuterium in Inconel 600 and by taking into account of the equilibrium state for the hydrogen isotopes including HD molecules on the surface. From the results obtained in this study, it is supposed that the amount of tritium permeated from the primary circuit of the HTTR to the utilization system will be reduced by the existence of high pressure H_2 in the steam reformer tube in the HTTR hydrogen production system.
社団法人日本機械学会の論文
2001-09-28