This study investigates the effective thermal conductivity of a polymer composite reinforced with particulate rice husk (PRH) and particulate carbon fibre (PCF) developed by hand lay-up process. The thermal conductivity of the developed composites at different fibre volume fraction % (FVF) of PRH and PCF at different particle size ratios is analysed by experimentation. Then a mathematical model is developed to find the analytical solution for effective thermal conductivity of the composites. For the developed model, a nonlinear AMPL (A Mathematical Programming Language) programming model is established to find the analytical solution. It is enthusiastic to observe that the experimental values for effective thermal conductivity are in close approximation with the analytical values obtained from the developed AMPL.
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