Offset Strip Fin Nanocomposite Polymer Heat
Exchanger Development
Author(s)
B. Fassolette, P. Bonnamy & J. A. Gruss
Abstract
This paper describes an analytical and numerical design method for compact heat
exchangers using nanocomposite polymer fins. The heat exchanger considered is
a plate and fin air/water type. There are OSF fins with longitudinal gaps on the
air side and minichannels on the water side. The analytical model is based on
several state of the art correlations like the Manglik and Bergles correlation for
OSF fins, introducing some corrections due to the gap along the fin. A global
analytical design method allowing optimization of the heat exchanger is
described. A CFD model of the fins has been developed in order to introduce
corrections due to the specific geometry of the polymer fins. Prototypes
developed with industrial partners will be tested in our lab to validate this model.
Keywords: heat exchange, polymer, nanocomposite, simulation.
1 Introduction
For several years, special attention has been focused on alternative materials that
can replace metals (Al, stainless steel, Cu, Ti) for the manufacture of heat
exchangers (HX). Indeed, metals have become more and more expensive and
require a great deal of energy for processing. Polymers have some advantages for
use in HX as chemical resistance, antifouling properties, manufacturing cost…
but their main drawbacks are their poor thermal conductivity, lower mechanical
resistance and limited temperature range. Adding nanofillers may improve the
properties of polymers and permit to design efficient and cost effective HX for
low to moderate temperature applications.
An HX has been designed using this new material for a marine Intercooler
heat exchanger dedicated to cool compressed air with seawater. This HX may
Keywords
heat exchange, polymer, nanocomposite, simulation.
Related Book
Other papers in this volume
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