The transcritical cycle of carbon dioxide is a promising alternative approach to heat pumps and automobile air conditioners. As an expansion device, the short tube orifice in a transcritical system usually receives supercritical fluid at the entrance and discharges a two-phase mixture at the exit. In this work, a two-fluid model (TFM) is developed for modeling the flow characteristics of supercritical through the short tube orifice. The deviations between the TFM predictions and the measured mass flow rates are within . Meanwhile, the TFM predicts reasonable pressure, temperature, and velocity distributions along the tube length. The small values of interphase temperature difference and velocity slip indicate that the nonequilibrium characteristics of the two-phase flow of in the short tube orifice are not significant. Consequently, the homogeneous equilibrium model reduced from the TFM gives a good prediction of the mass flow rate as well.
Skip Nav Destination
e-mail: clzhang@sjtu.org
e-mail: liang.yang@carrier.utc.com
Article navigation
November 2005
Technical Papers
Modeling of Supercritical Flow Through Short Tube Orifices
Chun-Lu Zhang,
Chun-Lu Zhang
Institute of Refrigeration and Cryogenics,
e-mail: clzhang@sjtu.org
Shanghai Jiaotong University
, No. 1954 Hua Shan Road, Shanghai 200030, China
Search for other works by this author on:
Liang Yang
Liang Yang
China R&D Center,
e-mail: liang.yang@carrier.utc.com
Carrier Corporation
, #29-06 King Tower, No.28 Xinjinqiao Road, Pudong, Shanghai 201206, China
Search for other works by this author on:
Chun-Lu Zhang
Institute of Refrigeration and Cryogenics,
Shanghai Jiaotong University
, No. 1954 Hua Shan Road, Shanghai 200030, Chinae-mail: clzhang@sjtu.org
Liang Yang
China R&D Center,
Carrier Corporation
, #29-06 King Tower, No.28 Xinjinqiao Road, Pudong, Shanghai 201206, Chinae-mail: liang.yang@carrier.utc.com
J. Fluids Eng. Nov 2005, 127(6): 1194-1198 (5 pages)
Published Online: July 11, 2005
Article history
Received:
May 15, 2005
Revised:
July 11, 2005
Citation
Zhang, C., and Yang, L. (July 11, 2005). "Modeling of Supercritical Flow Through Short Tube Orifices." ASME. J. Fluids Eng. November 2005; 127(6): 1194–1198. https://doi.org/10.1115/1.2060738
Download citation file:
Get Email Alerts
Related Articles
The Passing Behaviors of Vapor through Cloth
J. Heat Transfer (August,2006)
Behavior of Bimetallic Absorber in Parabolic Collectors During DSG to Low Powers
J. Sol. Energy Eng (May,2007)
Numerical Analysis of Two-Phase Pipe Flow of Liquid Helium Using Multi-Fluid Model
J. Fluids Eng (December,2001)
Cavitation Enhanced Heat Transfer in Microchannels
J. Heat Transfer (December,2006)
Related Proceedings Papers
Related Chapters
Thermal Design Guide of Liquid Cooled Systems
Thermal Design of Liquid Cooled Microelectronic Equipment
Cavitation in Fractal Geometry Orifices
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Liquid Cooled Systems
Thermal Management of Telecommunication Equipment, Second Edition