|Title:||Flow characteristics of refrigerants flowing through capillary tubes - A review|
Sahoo, Pradeep K.
|Published in:||Applied Thermal Engineering|
|Abstract:||A comprehensive review of the literature on the flow of various refrigerants through the capillary tubes of different geometries viz. straight and coiled and flow configurations viz. adiabatic and diabatic, has been discussed in this paper. The paper presents in chronological order the experimental and numerical investigations systematically under different categories. Flow aspects like effect of coiling and effect of oil in the refrigerants on the mass flow rate through the capillary tube have been discussed. Furthermore, the phenomenon of metastability and the correlations to predict the underpressure of vaporization have also been discussed. The paper provides key information about the range of input parameters viz. tube diameter, tube length, surface roughness, coil pitch and coil diameter, inlet subcooling and condensing pressure or temperature. Other information includes type of refrigerants used, correlations proposed and methodology adopted in the analysis of flow through the capillary tubes of different geometries operating under adiabatic and diabatic flow conditions. It has been found from the review of the literature that there is a lot more to investigate for the flow of various refrigerants through different capillary tube geometries. Â© 2008 Elsevier Ltd. All rights reserved.|
|Citation:||Applied Thermal Engineering (2009), 29(44052): 1426-1439|
|Keywords:||Coiled capillary tube|
|Author Scopus IDs:||22834936000|
|Author Affiliations:||Khan, Mohd.K., Department of Mechanical Engineering, Thapar University Patiala, Patiala, 147 004, India|
Kumar, R., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarkhand 247 667, India
Sahoo, P.K., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarkhand 247 667, India
|Corresponding Author:||Kumar, R.; Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarkhand 247 667, India; email: email@example.com|
|Appears in Collections:||Journal Publications [ME]|
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