A model to predict the steady-state behavior of a rectangular two-phase natural circulation loop has been proposed. The analysis employs a one-dimensional two-fluid model to identify various system parameters, with particular emphasis on the subcooled boiling region. The onset of two-phase region and point of net vapor generation and associated liquid temperatures and vapor qualities have been estimated using a few widely recognized correlations. Predicted results demonstrate that the consideration of subcooled boiling may have significant effect on system behavior, particularly around the transition regions. The interaction of saturated bubbles and subcooled liquid and associated change in heat transfer and frictional forces has been discussed in detail. Fluid stream has been observed to have different combinations of flow stream conditions at boiler exit and condenser inlet. Five probable combinations have been identified and a generalized working-regime map has been proposed on plane. Attempts have been made to identify the influence of various control parameters. A favorable sink condition (higher coolant flow rate or lower coolant entry temperature) has been found to be of particular importance to attain a wider operating range of wall heat flux and better heat transfer characteristics. A design map has been proposed to identify favorable operating condition in terms of control parameters to ensure complete condensation.
Skip Nav Destination
e-mail: dipankar@mech.iitkgp.ernet.in
e-mail: souvik@mech.iitkgp.ernet.in
Article navigation
Research Papers
Steady-State Behavior of a Two-Phase Natural Circulation Loop With Thermodynamic Nonequilibrium
Dipankar N. Basu,
Dipankar N. Basu
Department of Mechanical Engineering,
e-mail: dipankar@mech.iitkgp.ernet.in
IIT
, Kharagpur 721302, India
Search for other works by this author on:
Souvik Bhattacharyya,
Souvik Bhattacharyya
Department of Mechanical Engineering,
e-mail: souvik@mech.iitkgp.ernet.in
IIT
, Kharagpur 721302, India
Search for other works by this author on:
P. K. Das
P. K. Das
Search for other works by this author on:
Dipankar N. Basu
Department of Mechanical Engineering,
IIT
, Kharagpur 721302, Indiae-mail: dipankar@mech.iitkgp.ernet.in
Souvik Bhattacharyya
Department of Mechanical Engineering,
IIT
, Kharagpur 721302, Indiae-mail: souvik@mech.iitkgp.ernet.in
P. K. Das
J. Heat Transfer. Feb 2009, 131(2): 022901 (12 pages)
Published Online: January 5, 2009
Article history
Received:
January 28, 2008
Revised:
July 17, 2008
Published:
January 5, 2009
Citation
Basu, D. N., Bhattacharyya, S., and Das, P. K. (January 5, 2009). "Steady-State Behavior of a Two-Phase Natural Circulation Loop With Thermodynamic Nonequilibrium." ASME. J. Heat Transfer. February 2009; 131(2): 022901. https://doi.org/10.1115/1.2994721
Download citation file:
Get Email Alerts
Cited By
On Prof. Roop Mahajan's 80th Birthday
J. Heat Mass Transfer
Thermal Hydraulic Performance and Characteristics of a Microchannel Heat Exchanger: Experimental and Numerical Investigations
J. Heat Mass Transfer (February 2025)
Related Articles
Numerical Simulation of Evaporating Two-Phase Flow in a High-Aspect-Ratio Microchannel with Bends
J. Heat Transfer (August,2017)
Flow Visualization of Submerged Steam Jet in Subcooled Water
J. Heat Transfer (February,2016)
Condensation and Collapse of Vapor Bubble Injected to Subcooled Pool
J. Heat Transfer (August,2011)
Related Proceedings Papers
Related Chapters
Thermal Design Guide of Liquid Cooled Systems
Thermal Design of Liquid Cooled Microelectronic Equipment
Liquid Cooled Systems
Thermal Management of Telecommunications Equipment
Liquid Cooled Systems
Thermal Management of Telecommunication Equipment, Second Edition