Computational study of the influence of some systematic factors on the fuel temperature in a very high temperature gas-cooled reactor with prismatic fuel assemblies

Journal Article · Thu Dec 15 00:00:00 EST 2011 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778811140079· OSTI ID:22029868

Sedov, A A

The influence of the main systematic factors of overheating (such as nonuniformity of power density and cold leaks of coolant) on the fuel temperatures in a very high temperature gas-cooled reactor NGNP (Next Generation Nuclear Plant) with prismatic fuel blocks is studied. The results of computations show a high sensitivity of the fuel temperatures to systematic factors of overheating. This circumstance indicates the necessity of high-precision three-dimensional modeling of the gas dynamics and heat transfer in the core when designing this type of reactor.

• OSTI ID: 22029868
• Journal Information: Physics of Atomic Nuclei, Vol. 74, Issue 14; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
ACCURACY
CALCULATION METHODS
COMPUTERIZED SIMULATION
COOLANTS
FUEL ASSEMBLIES
GAS COOLED REACTORS
HEAT TRANSFER
LEAKS
NUCLEAR FUELS
NUCLEAR POWER PLANTS
POWER DENSITY
REACTOR CORES
THREE-DIMENSIONAL CALCULATIONS