Hydrodynamics and heat transfer in swirl flow under conditions of one-side heating. Part 2: Boiling heat transfer. Critical heat fluxes

The paper gives the basic results of experimental investigation of boiling heat transfer in heat-absorbing devices of the ITER thermonuclear reactor, which are subjected to one-side heating. The experimental data on heat transfer at nucleate and film boiling and on critical heat fluxes are obtained...

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Bibliographic Details
Published in:International journal of heat and mass transfer 2010-10, Vol.53 (21), p.4966-4975
Main Authors: Dedov, Aleksey V., Komov, Alexander T., Varava, Alexander N., Yagov, Victor V.
Format: Article
Language:English
Subjects:
Boiling
Channels
Critical heat flux
Devices
Film boiling
Fluxes
Heat transfer
Heating
Mass transfer
One-side heating
Water flow
Water temperature
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Summary:The paper gives the basic results of experimental investigation of boiling heat transfer in heat-absorbing devices of the ITER thermonuclear reactor, which are subjected to one-side heating. The experimental data on heat transfer at nucleate and film boiling and on critical heat fluxes are obtained in the following range of parameters of water flow: pressure p = 0.7–2.0 MPa, mass flux G = 340–25 000 kg/(m 2 s), and water temperature at the inlet T in = 20–60 °C. A twisted tape is inserted in the circular channel in order to form swirling flow of water. The investigations are performed for tapes with different values of flow swirl coefficient, as well for test sections without a tape. Appropriate calculation formulas are derived, which reliably generalize the experimental data.
ISSN:0017-9310
1879-2189
DOI:10.1016/j.ijheatmasstransfer.2010.05.035