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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2861
Title: Pressure drop and heat transfer study in tube-in-tube helical heat exchanger
Authors: Kumar, Vimal
Saini S.
Sharma M.
Nigam K.D.P.
Published in: Chemical Engineering Science
Abstract: In the present work attempts were made to investigate the hydrodynamics and heat transfer characteristics of tube-in-tube helical heat exchanger at the pilot plant scale. The experiments were carried out in counter current mode operation with hot fluid in the tube side and cold fluid in the annulus area. The outer tube was fitted with semicircular plates to support the inner tube and also to provide high turbulence in the annulus region. Overall heat transfer coefficients were calculated and heat transfer coefficients in the inner and outer tube were determined using Wilson plots. A commercial Computational Fluid Dynamics package [FLUENT User's Guide, release 6.0, Fluent Inc., Lebnon, NH, 1994] was used to predict the flow and thermal development in tube-in-tube helical heat exchanger. The Nusselt number and friction factor values in the inner and outer tubes were compared with the experimental data collected in the present study as well as reported in the literature. The CFD simulations were in agreement with the present experimental data. In case of literature data a reasonable comparison was found even though the boundary conditions in the present work were different. © 2006 Elsevier Ltd. All rights reserved.
Citation: Chemical Engineering Science (2006), 61(13): 4403-4416
URI: https://doi.org/10.1016/j.ces.2006.01.039
http://repository.iitr.ac.in/handle/123456789/2861
Issue Date: 2006
Keywords: Computational fluid dynamics
Heat transfer
Helical tube
Tube-in-tube heat exchanger
ISSN: 92509
Author Scopus IDs: 7404634425
57197116790
7403269252
22980653700
Author Affiliations: Kumar, V., Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
Saini, S., Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
Sharma, M., Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
Nigam, K.D.P., Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
Funding Details: The authors gratefully acknowledge the Ministry of Chemical and Fertilizers, GOI, India for funding the project.
Corresponding Author: Nigam, K.D.P.; Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India; email: nigamkdp@gmail.com
Appears in Collections:Journal Publications [CH]

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