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Title: Carbon based materials – applications in high temperature nuclear reactors
Authors: Sinha, R K
Dulera, I V
Issue Date: Oct-2010
Publisher: NISCAIR-CSIR, India
Abstract: Bhabha Atomic Research Centre (BARC) is currently developing concepts of high temperature nuclear reactors capable of supplying process heat at temperatures around 1000°C. These reactors would provide energy to facilitate production of hydrogen by a suitable high efficiency water splitting process. Currently a compact high temperature reactor is being developed as a technology demonstrator for associated technologies. Design and development has been also initiated for a 600 MWth Innovative High Temperature Reactor. Carbon based materials have important applications in these reactors. Nuclear fuel retaining elements in the form of fuel compacts and fuel pebbles, as well as neutron moderators and reflectors use carbon based materials. These materials are required to survive under extreme environmental conditions such as neutron irradiation, high temperatures around 1000°C and corrosive environment of liquid metal/salt based coolant. R & D issues involve design methodology for carbon-based components, compatibility with other materials and coolant, creep, and degradation under reactor conditions. Induced dimensional changes, irradiation creep, and degradation of thermal and mechanical properties are important factors to be considered in the design of these components. The paper highlights design of these high temperature reactors in general and their carbon based material related requirements in particular.
Page(s): 321-326
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Source:IJEMS Vol.17(5) [October 2010]

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