The objective of this study is to investigate the effect of coiling on the flow characteristics of R-407C in an adiabatic spiral capillary tube. The characteristic coiling parameter for a spiral capillary tube is the coil pitch; hence, the effect of the coil pitch on the mass flow rate of R-407C was studied on several capillary tube test sections. It was observed that the coiling of the capillary tube significantly reduced the mass flow rate of R-407C in the adiabatic spiral capillary tube. In order to quantify the effect of coiling, the experiments were also conducted for straight a capillary tube, and it was observed that the coiling of the capillary tube reduced the mass flow rate in the spiral tube in the range of 9–18% as compared with that in the straight capillary tube. A generalized nondimensional correlation for the prediction of the mass flow rates of various refrigerants was developed for the straight capillary tube on the basis of the experimental data of R-407C of the present study, and the data of R-134a, R-22, and R-410A measured by other researchers. Additionally, a refrigerant-specific correlation for the spiral capillary was also proposed on the basis of the experimental data of R-407C of the present study.
Skip Nav Destination
e-mail: ravikfme@iitr.ernet.in
Article navigation
December 2009
Research Papers
An Experimental Study of the Flow of R-407C in an Adiabatic Spiral Capillary Tube
M. K. Mittal,
M. K. Mittal
Department of Mechanical and Industrial Engineering,
Indian Institute of Technology Roorkee
, Roorkee 247667, India
Search for other works by this author on:
R. Kumar,
R. Kumar
Department of Mechanical and Industrial Engineering,
e-mail: ravikfme@iitr.ernet.in
Indian Institute of Technology Roorkee
, Roorkee 247667, India
Search for other works by this author on:
A. Gupta
A. Gupta
Department of Mechanical and Industrial Engineering,
Indian Institute of Technology Roorkee
, Roorkee 247667, India
Search for other works by this author on:
M. K. Mittal
Department of Mechanical and Industrial Engineering,
Indian Institute of Technology Roorkee
, Roorkee 247667, India
R. Kumar
Department of Mechanical and Industrial Engineering,
Indian Institute of Technology Roorkee
, Roorkee 247667, Indiae-mail: ravikfme@iitr.ernet.in
A. Gupta
Department of Mechanical and Industrial Engineering,
Indian Institute of Technology Roorkee
, Roorkee 247667, IndiaJ. Thermal Sci. Eng. Appl. Dec 2009, 1(4): 041003 (8 pages)
Published Online: May 19, 2010
Article history
Received:
December 11, 2009
Revised:
March 16, 2010
Online:
May 19, 2010
Published:
May 19, 2010
Citation
Mittal, M. K., Kumar, R., and Gupta, A. (May 19, 2010). "An Experimental Study of the Flow of R-407C in an Adiabatic Spiral Capillary Tube." ASME. J. Thermal Sci. Eng. Appl. December 2009; 1(4): 041003. https://doi.org/10.1115/1.4001484
Download citation file:
Get Email Alerts
Cited By
Research on thermal comfort of human body under localized automotive air conditioning
J. Thermal Sci. Eng. Appl
Temperature Analysis of Waveform Water Channel for High-Power Permanent Magnet Synchronous Motor
J. Thermal Sci. Eng. Appl
Related Articles
Water-Heated Pool Boiling of Different Refrigerants on the Outside Surface of a Horizontal Smooth Tube
J. Heat Transfer (February,2012)
Modeling of Pressure Drop During Condensation in Circular and Noncircular Microchannels
J. Fluids Eng (January,2009)
Simulation and Experimental Analysis of a Solar Driven Absorption Chiller With Partially Wetted Evaporator
J. Sol. Energy Eng (February,2010)
Related Proceedings Papers
Related Chapters
Techniques to Reduce Exchanger or System Cost
Heat Exchanger Engineering Techniques
Conditions That Can Make an A/C System Unacceptable
Heat Exchanger Engineering Techniques
A Study on the Refrigerant Charge Quantity of Ground Source Heat Pump System
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)