HEAT TRANSFER IN PCM ENHANCED BY AL ALLOY BASED PIN-FIN STRUCTURE

In this paper the performance of the hybrid heat accumulator based on the PCM (paraffin RT-82) and Al alloy with the fins in the shape of the pins (pin-fin structure) was evaluated for the constant working conditions and compared with the solution consisting of pure PCM. The applied metallic structure was manufactured by means of the investment casting with the use of replicas technique for the designed pattern. The thermal behavior of PCM was tested with the DSC and TGA analysis.