Multiphase Science and Technology A Quarterly

ISSN for PRINT: 0276-1459

For Online Access

Best Paper Award Selection - Editorial Board Site

2007, Volume19

Issue 2

118 pages

DOI: 10.1615/MultScienTechn.v19.i2

Issue price - $193.00

Gian Piero Celata
ITFD, Institute of Thermal-Fluid Dynamics ENEA, Italian Agency for the New Technologies, the Energy and the Environment, Rome, Italy

Maurizio Cumo
DINCE, University of Rome “La Sapienza”, Corso Vittorio Emanuele II, 244, Rome, Italy

M. Gervasi
ENEA, Institute for Thermal Fluid Dynamics, Via Anguillarese 301, 00123 S.M. Galeria, Rome, Italy

G. Zummo
ENEA, Institute for Thermal Fluid Dynamics, Via Anguillarese 301, 00123 S.M. Galeria, Rome, Italy

This paper describes the results of an experimental investigation on the flow pattern in pipe flow boiling under microgravity conditions, aiming at obtaining quantitative data and observations on the flow pattern for low gravity conditions. The test tubes are made of Pyrex® with two different inner diameters, 4.0 and 6.0 mm, respectively. Fluid flow is vertical upward, while the test fluid is FC-72, a Fluorinert™ liquid. Measurements included wall temperatures along the flow channel, inlet and outlet temperatures, pressures, and mass flow rate. A video camera allows one to take movies of the flow pattern in the last part of the flow channel. The observed flow pattern in the present experimental range is typically bubbly flow and intermittent flow (plug and disordered intermittent flow). Different flow pattern maps are verified with the experimental data and a modification of one of them is proposed.

DOI: 10.1615/MultScienTechn.v19.i2.50 Download article, 183-210 pages

Article price - $45.00

<< Previous article