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Fabrication&Thermal Analysis of Epoxy Resin-carbon Fiber Fabric Composite Plate-coil Heat Exchangers

The fabrication and thermal performance assessment of single plate heat exchangers made from carbon fiber fabric and epoxy resin are presented and discussed. To increase the thermal performance of the heat exchanger material, the epoxy resin was mixed with 1% wt. carbonaceous particles, which resulted in a thermal conductivity enhancement of approximately 39% and 25% for graphene nanoplatelets and for expanded graphite mixtures, respectively. A direct assessment of the thermal performance of the polymer composite heat exchanger was carried out via infrared thermography to evaluate the overall surface efficiency, and via calorimetric measurements in a purpose-built wind-tunnel to determine their overall thermal conductance. Both analyses revealed a slightly superior thermal performance of the composite plate heat exchanger without the carbonaceous particle loading, which was explained by scanning electron microscope images showing more voids in the composite heat exchanger plates.

This paper highlights application of the C-Therm TCi Thermal Conductivity Analyzer.

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