Gas−Liquid Flow through Helical Coils in Vertical Orientation

Experimental investigations have been carried out to evaluate the two-phase pressure drop and the hold-up for gas−liquid flow through vertical helical coils. The coils were made of thick-walled transparent PVC tubes of diameters 0.01 and 0.013 m. Twenty-four coils were made with different coil diame...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2003-07, Vol.42 (14), p.3487-3494
Main Authors: Mandal, S. N, Das, S. K
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Multiphase and particle-laden flows
Nonhomogeneous flows
Physics
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Summary:Experimental investigations have been carried out to evaluate the two-phase pressure drop and the hold-up for gas−liquid flow through vertical helical coils. The coils were made of thick-walled transparent PVC tubes of diameters 0.01 and 0.013 m. Twenty-four coils were made with different coil diameters and different helix angles (0−12°). Three different liquids and air were used for the experimental studies. Empirical correlations were developed to predict the two-phase friction factor and the liquid hold-up as functions of the physical and dynamic variables of the system. Statistical analysis of the correlations suggests that they are of acceptable accuracy.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie0200656