Discussion of Tag Gas Method Using in China Experimental Fast Reactor for Failed Fuel Assembly Location

2018 ◽  
Vol 4 (4) ◽  
Author(s):  
Bie Yewang ◽  
Zhang Donghui ◽  
Xiong Wenbin ◽  
Li Huwei ◽  
Wu Mingyu ◽  
...  
Keyword(s):  
Fast Reactor ◽  
Detection System ◽  
Failure Detection ◽  
Advantages And Disadvantages ◽  
Transfer Capability ◽  
Fuel Failure ◽  
Design Characteristics ◽  
Failure Location ◽  
China Experimental Fast Reactor

As the first fast reactor of China, the safety of China Experimental Fast Reactor (CEFR) is extremely important, and will decide the future of Chinese fast reactor project. The fuel failure detection system of CEFR provides surveillance and protection for the first barrier-fuel cladding of CEFR, so it is one of the most important systems for the safety of CEFR. As tag gas method is an important method for fuel-failure location in fast reactor, CEFR has a medium-term and long-term plan of using this method to locating failed fuel assemblies. This paper introduces the main principle of tag gas method, summarizes the application of this method, and compares the advantages and disadvantages of each fuel failure location method. Combining the design characteristics of CEFR, this work analyzes the selection principle of tag gas isotopes and the effects on heat transfer capability of fuel element while tag gas filled in. Meanwhile, according to the detection ability of mass spectrometer and the foreign advanced utilization experiences of tag gas method, some suggestions are provided.

Discussion of Tag Gas Method Using in China Experimental Fast Reactor for Failed Fuel Assembly Location

2017 ◽  
Author(s):  
Bie Yewang ◽  
Li Huwei ◽  
Xiong Wenbin ◽  
Zhang Donghui ◽  
Wu Mingyu ◽  
...  
Keyword(s):  
Fast Reactor ◽  
Detection System ◽  
Advantages And Disadvantages ◽  
Transfer Capability ◽  
Fuel Failure ◽  
Design Characteristics ◽  
Failure Location ◽  
China Experimental Fast Reactor ◽  
Gas Isotopes

As the first fast reactor of China, the safety of CEFR is extremely important, and will decide the future of Chinese fast reactor project. The failed fuel detection system of CEFR provides surveillance and protection for the first barrier-fuel cladding of CEFR, so it is one of the most important systems for the safety of CEFR. As tag gas method is an important method for fuel-failure location in fast reactor, CEFR has a medium-term and long-term plan of using this method to locating failed fuel assemblies. This article introduces the main principle of tag gas method, summarizes the application of this method, and compares the advantages and disadvantages of each fuel failure location method. Combining the design characteristics of China Experimental Fast Reactor, this work analyzes the selection principle of tag gas isotopes and the effects on heat transfer capability of fuel element while tag gas filled in. Meanwhile, according to the detection ability of mass spectrometer and the foreign advanced utilization experiences of tag gas method, some suggestions are provided.

Development of Fuel Failure Detection System for a High Temperature Gas Cooled Reactor

1987 ◽  
Vol 34 (1) ◽  
pp. 567-570 ◽  
Author(s):  
H. Terada ◽  
N. Wakayama ◽  
M. Obata ◽  
T. Tobita ◽  
N. Tsuyuzaki ◽  
...  
Keyword(s):  
High Temperature ◽  
Detection System ◽  
Failure Detection ◽  
Fuel Failure ◽  
High Temperature Gas

Development of fuel failure detection system for a high temperature gas cooled reactor. III

1989 ◽  
Vol 36 (1) ◽  
pp. 1261-1264 ◽  
Author(s):  
H. Terada ◽  
S. Asami ◽  
M. Kishimoto ◽  
N. Wakayama ◽  
M. Obata ◽  
...  
Keyword(s):  
High Temperature ◽  
Detection System ◽  
Failure Detection ◽  
Fuel Failure ◽  
High Temperature Gas

Fuel-failure detection system for Pakistan research reactor-1

1997 ◽  
Vol 24 (15) ◽  
pp. 1213-1222 ◽  
Author(s):  
S.K. Ayazuddin ◽  
Tariq Hayat ◽  
A.A. Qureshi ◽  
H.A. Khan
Keyword(s):  
Research Reactor ◽  
Detection System ◽  
Failure Detection ◽  
Fuel Failure

Development of fuel failure detection system for a high temperature gas cooled reactor. IV

1990 ◽  
Vol 37 (3) ◽  
pp. 1400-1404 ◽  
Author(s):  
M. Katagiri ◽  
M. Kishimoto ◽  
H. Terada ◽  
N. Wakayama ◽  
S. Kawame ◽  
...  
Keyword(s):  
High Temperature ◽  
Detection System ◽  
Failure Detection ◽  
Fuel Failure ◽  
High Temperature Gas

Development of fuel failure detection system for a high temperature gas cooled reactor. II

1988 ◽  
Vol 35 (3) ◽  
pp. 1041-1045 ◽  
Author(s):  
H. Terada ◽  
N. Wakayama ◽  
M. Obata ◽  
T. Ogawa ◽  
F. Kobayashi ◽  
...  
Keyword(s):  
High Temperature ◽  
Detection System ◽  
Failure Detection ◽  
Fuel Failure ◽  
High Temperature Gas

Performance of Fuel Failure Detection System for Coated Particle Fuels

1985 ◽  
Vol 32 (2) ◽  
pp. 1209-1213-a ◽  
Author(s):  
H. Terada ◽  
N. Wakayama ◽  
H. Ohkawa ◽  
H. Ohtsu ◽  
H. Yoshida
Keyword(s):  
Detection System ◽  
Failure Detection ◽  
Coated Particle ◽  
Fuel Failure

Problems of Distance Education

2018 ◽  
Vol 7 (1) ◽  
pp. 14-23 ◽  
Author(s):  
Rostislav Fojtík
Keyword(s):  
Distance Education ◽  
Distance Learning ◽  
Computer Science ◽  
Full Time ◽  
Advantages And Disadvantages ◽  
E Learning ◽  
Educational Requirements

Abstract Distance learning and e-learning have significantly developed in recent years. It is also due to changing educational requirements, especially for adults. The article aims to show the advantages and disadvantages of distance learning. Examples of the 20-year use of the distance learning form of computer science describe the difficulties associated with the implementation and implementation of this form of teaching. The results of students in the full-time and distance form of teaching in the bachelor’s study of computer science are compared. Long-term findings show that distant students have significantly lower scores in the first years of study than full-time bachelor students. In the following years of study, the differences diminish, and students’ results are comparable. The article describes the possibilities of improving the quality of distance learning.

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