Multiphase Science and Technology A Quarterly

ISSN for PRINT: 0276-1459

For Online Access

Best Paper Award Selection - Editorial Board Site

2007, Volume19

Issue 4

90 pages

DOI: 10.1615/MultScienTechn.v19.i4

Issue price - $193.00

Miyuki Akiba
Toshiba Corporation, Yokohama, Kanagawa, Japan

Shinichi Morooka
Toshiba Corporation, Yokohama, Kanagawa, Japan

Junji Mimatsu
Gifu University, Gifu, Japan

Sinji Sakai
Gifu University, Gifu, Japan

Akira Inoue
Tokyo Institute of Technology, Japan

The development of fast neutron spectrum boiling water reactors requires understanding of flow behavior in a tight lattice bundle. We conducted experiments to visualize single-channel flow under atmospheric conditions and to measure the critical heat flux (CHF) location and liquid film behavior. The observed flow pattern in the tight lattice was in agreement with the Hewitt-Roberts flow pattern map. CHF occurred at the wider rod gap location. Furthermore, the liquid film flow rate at this location was less than that at the narrow rod gap location. The CHF mechanism in a tight lattice would be the film dryout occurring by decreasing the liquid film flow rate.

DOI: 10.1615/MultScienTechn.v19.i4.40 Download article, 363-372 pages

Article price - $45.00

<< Previous article   Next article >>