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RESEARCH PAPERS: Heat Exchangers

A New Approach to Numerical Simulation of Small Sized Plate Heat Exchangers With Chevron Plates

[+] Author and Article Information
Sanjeev Jain

Department of Mechanical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi-110016, Indiasanjeevj@mech.iitd.ac.in

Aniruddha Joshi1

Department of Mechanical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi-110016, India

P. K. Bansal

Department of Mechanical Engineering, The University of Auckland, Auckland, New Zealand

1

Currently at Pacific Mindware Engg., Pvt. Ltd., Pune-411013, India.

J. Heat Transfer 129(3), 291-297 (Aug 04, 2006) (7 pages) doi:10.1115/1.2430722 History: Received January 19, 2006; Revised August 04, 2006

A numerical and experimental study of heat transfer and fluid flow in a single pass counter flow plate heat exchanger with chevron plates has been presented in this paper. CFD analysis of small sized plate heat exchanger was carried out by taking the complete geometry of the heat transfer surface and more realistic hydrodynamic and thermal boundary conditions. A cold channel with two chevron plates and two halves of hot channels on either side having flat periodic boundaries was selected as the computational domain. The numerical model was validated with data from experiments and empirical correlations from literature. Heat transfer and pressure drop data were obtained experimentally with water as the working fluid, in the Reynolds number range 400–1300 and the Prandtl number range 4.4–6.3.

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Copyright © 2007 by American Society of Mechanical Engineers
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Figures

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Figure 1

Schematic diagram—periodic boundary condition

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Figure 2

Corrugated plate geometry with periodic boundaries

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Figure 3

Schematic diagram of the experimental test facility for PHE

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Figure 4

Variation of experimental flow maldistribution parameter with Reynolds number

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Figure 5

Comparison of experimental, numerical, and theoretical friction factors

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Figure 6

Variation of Nusselt number with Reynolds number

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Figure 7

Velocity vectors—at mid-section in hot channel

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Figure 8

Contours of static temperature—at mid-section in cold channel

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Figure 9

Hot spots in cold channel

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