Published February 2010 | Version v1
Journal article Metadata-only

Calculation of reverse flow in inverted U-Tubes of steam generator during natural circulation

Creators

  • 1. Department of Thermal Engineering, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing (China)
  • 2. National Key Laboratory of Bubble Physics and Natural Circulation, Nuclear Power Institute of China, Chengdu (China)

Description

The mechanism of reverse flow in inverted U-tubes of steam generators of pressurized water reactors during natural circulation is analyzed by using the full range characteristic curve of parallel U-tubes. A lumped-distributed model to calculate the reverse flow occurred in inverted U-tubes of real steam generators with a large number of U-tubes during natural circulation is developed. The model has the advantages of quick calculation and high accuracy for the analysis of reverse flow in inverted U-tubes of real steam generators with natural circulation. This model has been used to calculate the normal and reverse flows occurred in inverted U-tubes of a steam generator with natural circulation. The comparison of calculated results indicates a well agreement with that predicted by the model in which normal or reverse flow in each individual U-tube is analyzed, which verifies the reliability of the model developed in this paper. (authors)

Additional details

Publishing Information

Journal Title
Nuclear Power Engineering
Journal Volume
31
Journal Issue
1
Journal Page Range
p. 57-60
ISSN
0258-0926

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
44060812
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
ACCURACY; COMPARATIVE EVALUATIONS; DIAGRAMS; NATURAL CONVECTION; PWR TYPE REACTORS; RELIABILITY; STEAM GENERATORS; TUBES
Descriptors DEC
BOILERS; CONVECTION; ENERGY TRANSFER; ENRICHED URANIUM REACTORS; EVALUATION; HEAT TRANSFER; INFORMATION; MASS TRANSFER; POWER REACTORS; REACTORS; THERMAL REACTORS; VAPOR GENERATORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
3 figs., 7 refs.