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Two dimensional model for multistream plate fin heat exchangers

DSpace at IIT Bombay

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Title Two dimensional model for multistream plate fin heat exchangers
 
Creator GOYAL, M
CHAKRAVARTY, A
ATREY, MD
 
Subject Plate fin heat exchanger
Helium liquefier
Helium refrigerator
PERFORMANCE PREDICTION
AXIAL CONDUCTION
THERMAL DESIGN
PARALLEL-FLOW
ALGORITHM
FLUID
MECHANISMS
EFFICIENCY
PROPERTY
WALL
 
Description A model based on finite volume analysis is presented here for multistream plate fin heat exchangers for cryogenic applications. The heat exchanger core is discretised in both the axial and transverse directions. The model accounts for effects of secondary parameters like axial heat conduction through the heat exchanger metal matrix, parasitic heat in-leak from surroundings, and effects of variable fluid properties/metal matrix conductivity. Since the fins are discretised in the transverse direction, the use of a fin efficiency is eliminated and the effects of transverse heat conduction/stacking pattern can be taken care of. The model is validated against results obtained using commercially available software and a good agreement is observed. Results from the developed code are discussed for sample heat exchangers. (C) 2014 Elsevier Ltd. All rights reserved.
 
Publisher ELSEVIER SCI LTD
 
Date 2014-12-28T17:53:29Z
2014-12-28T17:53:29Z
2014
 
Type Article
 
Identifier CRYOGENICS, 6170-78
0011-2275
1879-2235
http://dx.doi.org/10.1016/j.cryogenics.2014.02.017
http://dspace.library.iitb.ac.in/jspui/handle/100/17039
 
Language English