Pressure pulse on a subassembly wall due to gas release from a failed fuel pin

Autor: G.H. Golden, A.M. Judd, J.F. Koenig, L.K. Chang
Rok vydání: 1974
Předmět:
Zdroj: Nuclear Engineering and Design. 31:72-76
ISSN: 0029-5493
DOI: 10.1016/0029-5493(74)90135-6
Popis: This paper presents a mathematical model to predict the pressure pulse on a subassembly of fuel pins due to rapid release of gas from a failed pin into liquid coolant between the pins. The subassembly is simulated by a rigid circular tube, and liquid flow inside the tube is assumed incompressible, inviscid, and irrotational. A gas bubble along the centerline of the subassembly is considered to be formed as a result of the gas release from the plenum, and a pressure pulse on the subassembly wall is a consequence of the liquid being accelerated by the gas bubble. It is assumed that the gas bubble grows spherically until it touches the subassembly wall, and then expands as a cylinder with hemispherical ends. This analysis is particularly applicable to the EBR-II reactor.
Databáze: OpenAIRE