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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/19224
Title: Heat Transfer and Fluid Flow Characteristics for Newtonian and Non-Newtonian Fluids in a Tube-in-Tube Helical Coil Heat Exchanger
Authors: Kushwaha N.
Kumawat T.C.
Nigam K.D.P.
Kumar V.
American Chemical Society
Published in: Industrial and Engineering Chemistry Research
Abstract: In the present work, heat transfer and fluid flow characteristics for both Newtonian and non-Newtonian fluids in tube-in-tube helical coil (TTHC) heat exchangers have been investigated numerically. The various TTHC heat exchanger configurations studied are (1) parallel and (2) counter flow, with and without baffles. The power law index (n) and Dean number (N ) are varied from 0.5 to 1.25 and 50 to 500, respectively. Further, two different models have been proposed to predict the friction factor (f) and Nusselt number (Nu) in TTHC. It is observed that f and Nu in the TTHC heat exchanger with baffles in the annulus is higher as compared to without baffles. Furthermore, at low Prandtl number the baffles have significant influence on heat transfer, while at high Prandtl number flow configuration has high significance.
Citation: Industrial and Engineering Chemistry Research(2020), 59(9): 3972-3984
URI: https://doi.org/10.1021/acs.iecr.9b07044
http://repository.iitr.ac.in/handle/123456789/19224
Issue Date: 2020
Publisher: American Chemical Society
ISSN: 8885885
Author Scopus IDs: 57209421606
56527271600
22980653700
7404634425
Author Affiliations: Kushwaha, N., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Uttarakhand, 247667, India
Kumawat, T.C., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Uttarakhand, 247667, India
Nigam, K.D.P., D
Funding Details: .Ministry of Human Resource Development, MHRD Ministry of Education and Human Resources Development, MOEHRD.The authors acknowledge the financial support provided by the Ministry of Human Resources and Development (MHRD), Government of India, for carrying out the present work.
Corresponding Author: Kumar, V.; Department of Chemical Engineering, India; email: vimal.kumar@ch.iitr.ac.in
Appears in Collections:Journal Publications [CH]

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