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Title: Dynamics of hydrogen in sodium in LMFBR secondary circuit
Authors: Nema, Vivek
Sujish, D
Muralidharan, B
Rajan, M
Vaidyanathan, G
Issue Date: Oct-2006
Publisher: CSIR
Series/Report no.: G21C
Abstract: Steam generator (SG) of a liquid metal cooled fast breeder reactor (LMFBR) comprises sodium on the shell side transferring heat to water in the tubes. Any crack in the tube will result in the water reacting with sodium producing hydrogen and other corrosive reaction products. This may lead to the damage of the neighbouring tubes. Monitoring of hydrogen concentration in sodium can indicate the initiation of a sodium water reaction (SWR). The hydrogen detectors are based on the diffusion of hydrogen in the sodium through a nickel membrane and measurement of the hydrogen concentration by a mass spectrometer. A numerical model has been developed to estimate the amount of hydrogen concentration in the secondary loop during water/steam leak in SG. The model has been validated based on experiments with hydrogen injection in one loop and actual sodium water reaction in another loop. It has been found that the increase in hydrogen concentration was very well predicted by the code.
Description: 391-396
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.13(5) [October 2006]

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