A PWR design incorporates a passive auxiliary feedwater system equipped with one passive condensation heat exchanger (PCHX) which consists of inclined V-shaped tube bundles submerged in a water pool of which the top is open to the atmosphere. During the PCHX operation, saturated steam flows into the PCHX where steam is condensed inside of the tubes by cooling the outer side with the pool water. Then, the condensate flows out passively by gravity. Because the thermal-hydraulic characteristics in the PCHX determine the condensation mass rate and the possibility of thermal stratification-induced fatigue of the pool tank wall, system instability and waterhammer, it is important to understand the phase change flow in the PCHX. In this paper, the complex phase change heat transfer and multi-phase flow in a PCHX tube model were numerically simulated. The single fluid multi-component flow model with the equilibrium phase change model was employed for the condensation phase change flow inside the tube and the two-fluid model with the wall boiling model and the equilibrium phase change model was used for the boiling-induced natural convection outside the tube in the pool. Based on the present numerical simulation, the characteristics of the heat transfer and flow in the PCHX are discussed and illustrated for some typical results.
Skip Nav Destination
ASME 2013 Pressure Vessels and Piping Conference
July 14–18, 2013
Paris, France
Conference Sponsors:
- Pressure Vessels and Piping Division
- Nondestructive Evaluation Engineering Division
ISBN:
978-0-7918-5568-3
PROCEEDINGS PAPER
Numerical Analysis of Heat Transfer and Flow in a Passive Condensation Heat Exchanger
Jong Chull Jo,
Jong Chull Jo
Korea Institute of Nuclear Safety, Daejon, Korea
Search for other works by this author on:
Kyu Sik Do,
Kyu Sik Do
Korea Institute of Nuclear Safety, Daejon, Korea
Search for other works by this author on:
Yong Kab Lee
Yong Kab Lee
ANFLUX Co., Seoul, Korea
Search for other works by this author on:
Jong Chull Jo
Korea Institute of Nuclear Safety, Daejon, Korea
Kyu Sik Do
Korea Institute of Nuclear Safety, Daejon, Korea
Yong Kab Lee
ANFLUX Co., Seoul, Korea
Paper No:
PVP2013-97121, V004T04A065; 7 pages
Published Online:
January 17, 2014
Citation
Jo, JC, Do, KS, & Lee, YK. "Numerical Analysis of Heat Transfer and Flow in a Passive Condensation Heat Exchanger." Proceedings of the ASME 2013 Pressure Vessels and Piping Conference. Volume 4: Fluid-Structure Interaction. Paris, France. July 14–18, 2013. V004T04A065. ASME. https://doi.org/10.1115/PVP2013-97121
Download citation file:
11
Views
Related Proceedings Papers
Related Articles
Condensate Retention Effects on the Performance of Plain-Fin-and-Tube Heat Exchangers: Retention Data and Modeling
J. Heat Transfer (October,2001)
Analytical Study of Flow Instability in a Natural Circulation Pressurized Water Reactor Auxiliary Feedwater System
J. Pressure Vessel Technol (April,2015)
Effects of Vapor Superheat and Condensate Subcooling on Laminar Film
Condensation
J. Heat Transfer (February,2000)
Related Chapters
Sampling
Consensus on Operating Practices for the Sampling and Monitoring of Feedwater and Boiler Water Chemistry in Modern Industrial Boilers (CRTD-81)
Lay-Up and Start-Up Practices
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration
Thermal Design Guide of Liquid Cooled Systems
Thermal Design of Liquid Cooled Microelectronic Equipment