Characterization-Modeling-Optimization of Polymer Composite Pin Fins

This book presents a systematic approach to the §characterization, analysis, design, and optimization §of orthotropic polymer composite fins used in heat §sinks for electronic cooling applications. §Morphological characterization and thermal §conductivity measurements of thermally conductive §Poly-Phenylene Sulphide composites are used to §determine the significant directional thermal §conductivity in such composites. An axisymmetric §orthotropic thermal conductivity pin fin equation is §derived to study the orthotropic thermal §conductivity effects on pin fin heat transfer rate §and temperature distribution. FEM simulation and §water cooled experiments, focusing on the radial §temperature variations in single pin fins, are used §to validate the analytical model. Theoretical §models, CFD modeling, and experiments are used to §characterize the thermal performance of heat sinks, §fabricated of PPS composite pin fins, in air natural §convection and forced convection modes. Simplified §solutions, for the orthotropic fin heat transfer §rate that are easy to use and can be easily §implemented in a heat sink design and optimization §scheme, are presented.