NDLI: Thermal/fluid characteristics of 3-D woven mesh structures as heat exchanger surfaces

Content Provider	IEEE Xplore Digital Library
Author	Wirtz, R.A. Jun Xu Ji-Wook Park Ruch, D.
Copyright Year	1999
Abstract	The present work demonstrates the fabrication methodology of a three-dimensional (3-D), aluminum wire filament, bonded mesh deployed as a heat exchange surface. A model of the effective thermal conductivity of the mesh is developed. Apparatus to measure the coolant pressure-drop and heat transfer coefficient are described. Measurements are reported for fabricated test samples of varying thickness. Mesh Stanton number and friction factor correlations for a coolant with Prandtl number equal to 9.5 (chilled water) are reported. A heat exchanger performance evaluation, comparing the 3-D woven mesh technology to another exchanger surface technology, is described. We have found that the weaving/wire bonding process must be carefully controlled to insure that target porosity, specific surface area and effective thermal conductivity are achieved. Effective thermal conductivities are found to be at least two-times larger than achieved in other comparable porous media configurations. Mesh friction factor and Stanton number are comparable to those achieved with other exchanger surface technologies. The exchanger performance comparison shows that exchangers having superior performance can be configured.
Sponsorship	IEEE Components, Packaging, and Manufacturing Technology Society
Starting Page	40
Ending Page	47
Page Count	8
File Size	820611
File Format	PDF
ISSN	15213331
Volume Number	26
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-03-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Thermal conductivity Wire Coolants Friction Fabrication Aluminum Bonding Heat transfer Thickness measurement Testing
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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