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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/10931
Title: An experimental study of the flow of r-407c in an adiabatic spiral capillary tube
Authors: Mittal M.K.
Kumar R.
Gupta A.
Published in: Journal of Thermal Science and Engineering Applications
Abstract: The objective of this study is to investigate the effect of coiling on the flow characteristics ofR-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 ofR-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 ofR-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 ofR-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. © 2009 by ASME.
Citation: Journal of Thermal Science and Engineering Applications (2009), 1(4): 1-8
URI: https://doi.org/10.1115/1.4001484
http://repository.iitr.ac.in/handle/123456789/10931
Issue Date: 2009
ISSN: 19485085
Author Scopus IDs: 57194725184
55389796000
55491955100
Author Affiliations: Mittal, M.K., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, 247667, India
Kumar, R., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, 247667, India
Gupta, A., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, 247667, India
Corresponding Author: Kumar, R.; Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, 247667, India; email: ravikfme@iitr.ernet.in
Appears in Collections:Journal Publications [ME]

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