skip to main content

Title: Hydriding performances and modeling of a small-scale ZrCo bed

In order to evaluate the performance of the hydriding of a ZrCo bed, a small-scale getter bed of ZrCo was designed and fabricated. The results show that the hydriding time at room temperature was somewhat shorter than that at higher temperatures of ZrCo and that the performance of hydriding at low temperatures of ZrCo was better than that at high temperatures of ZrCo. The experimental results of the hydrogen pressure of hydriding (ZrCoH{sub 2.8}) at different temperatures were in agreement with the computed values using a numerical modeling equation but with a small difference during the first 10 minutes of the hydriding of ZrCo. The model is based on the Kozeny-Carman equation. The effect of a helium blanket on hydriding was measured and analyzed. The hydriding with no helium blanket in the primary vessel of ZrCo is much faster than that with a helium blanket. The hydriding at a helium concentration of 8% is slower than that at 0%. As the helium concentration increases, the hydriding of ZrCo decreases. The experimental results of the hydriding with 0 %, 4%, and 8% of helium concentration are in agreement with the calculated values but with minimal differences during the first 10 minutes.
Authors:
; ; ; ;  [1] ; ; ; ;  [2]
  1. KAERI-UST, Yuseong, Daejeon (Korea, Republic of)
  2. NFRI, Yuseong, Daejeon (Korea, Republic of)
Publication Date:
OSTI Identifier:
22429735
Resource Type:
Journal Article
Resource Relation:
Journal Name: Fusion Science and Technology; Journal Volume: 67; Journal Issue: 2; Conference: TRITIUM 2013: 10. International Conference on Tritium Science and Technology, Nice Acropolis (France), 21-25 Oct 2013; Other Information: Country of input: France; 20 refs.
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ABUNDANCE; BINARY ALLOY SYSTEMS; COBALT ALLOYS; HELIUM; HYDRIDATION; HYDRIDES; HYDROGEN; PERFORMANCE; REACTOR VESSELS; SIMULATION; TEMPERATURE RANGE 0273-0400 K; ZIRCONIUM ALLOYS