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Thermal-hydraulic characteristics and performance of 3D wavy channel based printed circuit heat exchanger

DSpace at IIT Bombay

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Title Thermal-hydraulic characteristics and performance of 3D wavy channel based printed circuit heat exchanger
 
Creator KHAN, HH
ANEESH, AM
SHARMA, A
SRIVASTAVA, A
CHAUDHURI, P
 
Subject PCHE
MODEL
Computational fluid dynamics
Printed circuit heat exchanger
Thermal-hydraulic performance
Wavy channel
 
Description CFD study is done here to propose an efficient PCHE (Printed Circuit Heat Exchanger) model; used as a recuperator in International Thermonuclear Experimental Reactor (ITER). 3D steady state conjugate heat-transfer numerical simulations are done; considering the variation of thermo-physical properties as a function of temperature. Helium is used as a working fluid and alloy 617 as solid substrate. The study is done for various angle of bend (theta = 0 degrees (straight), 5 degrees, 10 degrees and 15 degrees) and Reynolds number (Re = 350, 700, 1400 and 2100). Various types of flow patterns, within one wavy-section, are presented to analyze thermal-hydraulic characteristics. Thermal hydraulic performance parameters are presented for the various wavy-sections as well as within a section; and for the complete PCHE model. Heat transfer enhancement as compared to pressure penalty is higher for the wavy channel; and increases with increasing Re and theta. Wavy as compared to plane channel based PCHE is demonstrated here to give better thermal-hydraulic performance. A detailed characteristics as well as performance-parameters for thermal hydraulics in a 3D wavy channel based PCHE model not found in the literature is presented here. (C) 2015 Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2016-01-14T12:56:43Z
2016-01-14T12:56:43Z
2015
 
Type Article
 
Identifier APPLIED THERMAL ENGINEERING, 87,519-528
1359-4311
http://dx.doi.org/10.1016/j.applthermaleng.2015.04.077
http://dspace.library.iitb.ac.in/jspui/handle/100/17553
 
Language en