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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/17759
Title: Enhanced Boiling Outside 8 × 3 Plain and Coated Tube Bundles
Authors: Lakhera V.J.
Gupta, Akhilesh Kumar
Kumar R.
Published in: Proceedings of Heat Transfer Engineering
Abstract: Experiments were conducted for pool boiling on the outside of 8 × 3 (eight rows and three columns) plain and coated tube (surface roughness = 8.279 μm) bundles for three different pitch distances with the distinct objective to study the behavior and the enhancement of boiling heat transfer in horizontal staggered tube bundles (of plain and coated tubes for different equilateral triangular arrangements) with heat flux values ranging from ∼12 to 45 kW/m 2. At higher heat fluxes, coated and plain tube bundles had almost similar bundle average heat transfer coefficients at a given pitch distance, while at lower heat fluxes, the coated tube bundles have higher bundle average heat transfer coefficients as compared to that of the plain tube bundle. The coated tube bundles with the minimum pitch to diameter ratio of 1.4 exhibited the maximum bundle average heat transfer coefficients. The present study concludes that the bundle factor needs to be considered in the design of flooded evaporators. © 2012 Taylor & Francis.
Citation: Proceedings of Heat Transfer Engineering, (2012), 828- 834
URI: https://doi.org/10.1080/01457632.2012.646924
http://repository.iitr.ac.in/handle/123456789/17759
Issue Date: 2012
Keywords: Boiling heat transfer
Coated tubes
Equilateral-triangular arrangement
Flooded evaporators
Pitch-to-diameter ratios
Plain tubes
Pool boiling
Tube Bundle
Heat flux
Heat transfer coefficients
Phase transitions
Surface roughness
Tubes (components)
ISSN: 1457632
Author Scopus IDs: 25225621600
55491955100
55389796000
Author Affiliations: Lakhera, V.J., Mechanical Engineering Department, Institute of Technology, Nirma University, S. G. Highway, Ahmedabad 382481, India
Gupta, A., Mechanical and Industrial Engineering Department, Indian Institute of Technology, Roorkee, India
Kumar, R., Mechanical and Industrial Engineering Department, Indian Institute of Technology, Roorkee, India
Corresponding Author: Lakhera, V.J.; Mechanical Engineering Department, Institute of Technology, Nirma University, S. G. Highway, Ahmedabad 382481, India; email: vikas.lakhera@nirmauni.ac.in
Appears in Collections:Conference Publications [ME]

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