Performance of a hydrogen sensor in Pb-16Li

被引：30

作者：

Ciampichetti, Andrea ^{[1
]}

Zucchetti, Massimo

Ricapito, Italo

Utili, Marco

Aiello, Antonio

Benamati, Gianluca

机构：

[1] Politecn Torino, EURATOM, ENEA Fus Assoc, Turin, Italy

[2] ENEA FIS ING, Camugnano, BO, Italy

来源：

JOURNAL OF NUCLEAR MATERIALS | 2007年 / 367卷 / SPEC. ISS.期

关键词：

Computer simulation - Lead - Lithium - Optimization;

D O I：

10.1016/j.jnucmat.2007.03.250

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To develop a sensor for measurements of hydrogen (and its isotopes) concentration in liquid Pb-16Li, two permeating capsules made with niobium and pure iron have been tested. The experimental results demonstrated that the Nb-sensor is not suitable for the foreseen application. The Fe-sensor cannot be operated in equilibrium mode because of the very long time necessary to reach the hydrogen pressure equilibrium. However, the equilibrium mode cannot be definitively excluded. In fact, by means of a substantial optimisation. of the sensor geometry, the pressurisation rate could be fast enough to reach acceptable response times. In this context, different optimised solutions have been developed and good performance demonstrated by simulations. The present Fe-sensor can be successfully operated in dynamic mode, since it is possible to link reliably the permeation fluxes to the hydrogen concentration in the liquid metal. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1090 / 1095

页数：6

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