Numerical Analysis of Thermal and Hydro Dynamical Processes in Lower Fuel Channel Part of Boiling Water Reactor

被引：1

作者：

Paukstaitis, L. ^{[1
]}

Kilikevicius, S. ^{[1
]}

Gudzinskas, J. ^{[1
]}

Gylys, M. ^{[1
]}

Lukosevicius, V. ^{[1
]}

机构：

[1] Kaunas Univ Technol, Studentu 56, LT-51424 Kaunas, Lithuania

来源：

MECHANIKA | 2017年 / 23卷 / 05期

关键词：

fuel channel; coolant temperature; velocity; pressure drop; steam fraction; spacer; intensifier; TURBULENT-FLOW; SPACER GRIDS; ROD BUNDLES; VALIDATION; MODEL; BWR;

D O I：

10.5755/j01.mech.23.5.16457

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This article presents results of a 3D numerical analysis of the thermal and hydro dynamical processes which take place inside the fuel channel of the RBMK-1500 reactor during interaction between coolant and fuel assembly. The simulation was made using ANSYS CFX code in order to evaluate coolant's pressure, temperature, flow velocity and steam mass fraction changes at the distance grids (spacers) and at the heat transfer intensification grids (intensifiers) along and across the fuel channel. The obtained results help better to understand the processes which have a direct influence on the reactor safety. Information about the peculiarities of steam generation process inside the fuel channel (temperature change, pressure drop, flow velocity, steam mass fraction) enables to identify the most loaded points of the fuel channel.

引用

页码：653 / 660

页数：8

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