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ISSN Online: 2688-7231

ISBN Online: 978-1-56700-524-0

Proceedings of the 26thNational and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference December 17-20, 2021, IIT Madras, Chennai-600036, Tamil Nadu, India
December, 17-20, 2021, IIT Madras, Chennai, India

An analytical study to investigate the effect of partial loss of coolant from the vicinity of nuclear fuel plate

Get access DOI: 10.1615/IHMTC-2021.300
pages 203-208

Abstract

Nuclear accidents occurring due to the loss of coolant are termed as Loss Of Coolant Accidents (LOCA) and during these accidents, the reactor core gets uncovered which implies that the part of a fuel plate gets exposed to the steam where there is no scope of fuel plate cooling. In this work, an analytical study has been done based on a 2-Dimensional model. This study investigates the temperature distribution in a nuclear fuel plate under different submerged conditions in the coolant. The analytical model involves steady state heat transfer from the fuel plate to the surrounding which includes solving of partial differential equations by employing the method of separation of variables. The submergence height is varied and it is observed that with the decrease in coolant height, the temperature in the exposed portion of the fuel plate rises alarmingly. Biot number for the steam side is varied to observe the changes in the temperature in the fuel plate.
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