STABILITY OF SINGLE-PHASE NATURAL CIRCULATION WITH INVERTED U-TUBE STEAM GENERATORS.

被引:1
|
作者
Sanders, J. [1 ]
机构
[1] Commission of the European, Communities, Ispra, Italy, Commission of the European Communities, Ispra, Italy
来源
Journal of Heat Transfer | 1988年 / 110卷 / 03期
关键词
FLOW OF FLUIDS - HEAT TRANSFER - Conduction - NUCLEAR REACTORS; PRESSURIZED WATER - Mathematical Models;
D O I
暂无
中图分类号
学科分类号
摘要
For natural circulation it is shown that parallel flow in the tubes of an inverted U-tube steam generator can be, at certain power levels, unstable. A mathematical model, based on one-dimensional Oberbeck-Boussinesq equations, shows that stability can be attained if in some tubes the water flows backward, opposite to the normal flow direction. The results are compared to measurements obtained from the natural circulation test A2-77A in the LOBI-MOD2 integral system test facility.
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页码:735 / 742
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