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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2624
Title: Dimensionless local and average boiling heat transfer correlation for saturated liquids
Authors: Das M.K.
Gupta S.C.
Agarwal, Vijaykumar
Published in: Heat Transfer Research
Abstract: The present study is an experimental investigation on nucleate pool boiling of saturated liquids namely, distilled water, methanol, and isopropanol over a plain copper heating tube at atmospheric and sub-atmospheric pressures. The study includes the effect of operating parameters, i.e., heat flux and pressure on the boiling heat transfer coefficient of saturated liquids on a copper heating tube. The boiling heat transfer coefficient is determined locally at the bottom, two sides and at the top position of the heating tube and a dimensionless equation of the form h?* h ?,1* = [(a + b cos ?)/(a + b cos ?) 1 (p/p1)0.32 is established for prediction of the local boiling heat transfer coefficient at different pressures. Further, a dimensional equation, h = Cq0.7p0.32, is established for determination of the average boiling heat transfer coefficient of saturated liquids on a plain copper heating tube. The dimensionless correlations of earlier investigators are tested with experimental data of the present investigation for the sake of comparison. Further, a dimensionless correlation of the form: NuB* = Csf(Pe B*)0.7 (Kp)0.7 (Pr)-0.67 is proposed. The correlation is found to fit experimental data of the present investigation within a maximum error of ±6.
Citation: Heat Transfer Research (2010), 41(5): 531-558
URI: https://doi.org/10.1615/HeatTransRes.v41.i5.40
http://repository.iitr.ac.in/handle/123456789/2624
Issue Date: 2010
Publisher: Begell House Inc.
Keywords: Dimensionless correlation
Distilled water
Isopropanol
Local heat transfer coefficient
Methanol
Pool boiling
Sub-atmospheric pressure
ISSN: 10642285
Author Scopus IDs: 7402050720
57209786114
25637008500
Author Affiliations: Das, M.K., School of Mechanical Sciences, IIT Bhubaneswar, Bhubaneswar - 751017, India
Gupta, S.C., Chemical Engineering Department, Indian Institute of Technology Roorkee, Roorkee - 247667, India
Agarwal, V.K., School of Mechanical Sciences, IIT Bhubaneswar, Bhubaneswar - 751017, India
Corresponding Author: Das, M. K.; School of Mechanical Sciences, IIT Bhubaneswar, Bhubaneswar - 751017, India; email: mihirdas@iitbbs.ac.in
Appears in Collections:Journal Publications [CH]

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