Abstract
This paper is focused on the improvement of the heat sink system of a thermal energy harvester by using organic and inorganic Phase Change Materials (PCM), considering solutions with the lowest environmental impact, as an alternative to well-known paraffin waxes. The proposed heat sink has been applied to the real case study of a thermoelectric energy harvester to supply a wireless sensor node placed in the engine compartment of a vehicle and used for the continuous monitoring of the engine’s vibrations. Different hydrated salts (nitrate mixtures) have been evaluated as PCM, trough design of experiments techniques, working in a restrained well-tailored temperature ranges (±5 °C) depending on mixtures’ composition, and compared with acetamide as best organic alternative. The realized PCM-based heat sink shown better performance compared with a classic heat sink in both steady-state and dynamic conditions.
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Acknowledgments
The authors would like to thank ASK industries S.p.A. for financial support and technical assistance. This work was supported by the Italian Ministry of Economic Development (MISE)’s FUND FOR THE SUSTAINABLE GROWTH (F.C.S) under grant agreement (CUP) B48I15000130008, project VASM (“Vehicle Active Sound Management”).
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Bertacchini, A., Barbi, S., Montorsi, M. (2020). Improved Heat Sink for Thermoelectric Energy Harvesting Systems. In: Ahram, T., Karwowski, W., Vergnano, A., Leali, F., Taiar, R. (eds) Intelligent Human Systems Integration 2020. IHSI 2020. Advances in Intelligent Systems and Computing, vol 1131. Springer, Cham. https://doi.org/10.1007/978-3-030-39512-4_122
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DOI: https://doi.org/10.1007/978-3-030-39512-4_122
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