A horizontal in-tube condensation heat exchanger is under investigation to be used for a passive containment cooling system (PCCS) of a next generation-type BWR. The flow conditions in the horizontal condenser tube were observed both visually and by local void fraction fluctuation. The observed flow regimes at a rated condition were annular flow at the tube inlet, and turned gradually into wavy flow and smooth stratified flow along the length of the tube. It was found further that frequency of the roll waves that appear on the liquid film in the annular flow is closely related to the measured local condensation heat transfer coefficient. Based on the flow observation, the roll wave frequency and measured condensation heat transfer coefficient, a model is proposed which predicts the condensation heat transfer coefficient particularly for annular flows around the tube inlet region. The proposed heat transfer model predicts well the influences of pressure, local gas-phase velocity and film thickness.
Skip Nav Destination
10th International Conference on Nuclear Engineering
April 14–18, 2002
Arlington, Virginia, USA
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
0-7918-3597-9
PROCEEDINGS PAPER
Roll Wave Effects on Annular Condensing Heat Transfer in Horizontal PCCS Condenser Tube
Masaya Kondo,
Masaya Kondo
Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan
Search for other works by this author on:
Hideo Nakamura,
Hideo Nakamura
Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan
Search for other works by this author on:
Yoshinari Anoda,
Yoshinari Anoda
Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan
Search for other works by this author on:
Sadanori Saishu,
Sadanori Saishu
Japan Atomic Power Company, Tokyo, Japan
Search for other works by this author on:
Hiroyuki Obata,
Hiroyuki Obata
Japan Atomic Power Company, Tokyo, Japan
Search for other works by this author on:
Rumi Shimada,
Rumi Shimada
Japan Atomic Power Company, Tokyo, Japan
Search for other works by this author on:
Shinichi Kawamura
Shinichi Kawamura
Tokyo Electric Power Company, Tokyo, Japan
Search for other works by this author on:
Masaya Kondo
Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan
Hideo Nakamura
Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan
Yoshinari Anoda
Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan
Sadanori Saishu
Japan Atomic Power Company, Tokyo, Japan
Hiroyuki Obata
Japan Atomic Power Company, Tokyo, Japan
Rumi Shimada
Japan Atomic Power Company, Tokyo, Japan
Shinichi Kawamura
Tokyo Electric Power Company, Tokyo, Japan
Paper No:
ICONE10-22403, pp. 643-651; 9 pages
Published Online:
March 4, 2009
Citation
Kondo, M, Nakamura, H, Anoda, Y, Saishu, S, Obata, H, Shimada, R, & Kawamura, S. "Roll Wave Effects on Annular Condensing Heat Transfer in Horizontal PCCS Condenser Tube." Proceedings of the 10th International Conference on Nuclear Engineering. 10th International Conference on Nuclear Engineering, Volume 3. Arlington, Virginia, USA. April 14–18, 2002. pp. 643-651. ASME. https://doi.org/10.1115/ICONE10-22403
Download citation file:
8
Views
Related Proceedings Papers
Related Articles
Numerical Analysis of Heat Transfer Characteristics of a Falling Film Type Plate-Fin Condenser/Reboiler
J. Heat Transfer (August,2016)
Condensation Heat Transfer and Flow Properties of R134a Refrigerant in Rectangular Minichannel: A Numerical Study
J. Thermal Sci. Eng. Appl (April,2020)
Direct Numerical Simulation of Condensing Stratified Flow
J. Heat Transfer (February,2008)
Related Chapters
Engineering and Physical Modeling of Power Plant Cooling Systems
Thermal Power Plant Cooling: Context and Engineering
Threshold Functions
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
IWE and IWL
Companion Guide to the ASME Boiler & Pressure Vessel Codes, Volume 2, Sixth Edition