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Journal Articles Journal of Physics: Conference Series Year : 2019

MISTIC - Micro Stirling Heat Engines for Thermal Energy Harvesting

Abstract

Abstract This paper reports on the fabrication and validation of the piston assembly for a new micro heat engine based on the Stirling cycle, (MISTIC - MIcro STIrling Clusters), intended for electric power generation by harvesting low temperature waste heat (≥ 200° C). Here, we define the requirements, develop the fabrication processes and fabricate piston assemblies to show the feasibility. Static and dynamic response of the pistons show that high quality factors (Q>100) are achievable with the polymer structures and the natural frequencies of adjacent pistons can be matched (within 4 percent), two characteristics required to allow start-up of the engine. We also demonstrate an electromagnetic actuator that is capable of individually exciting the pistons to further facilitate start-up.

Dates and versions

hal-04161054 , version 1 (13-07-2023)

Identifiers

Cite

T. Avetissian, É. Leveillé, M.-A. Hachey, F. Formosa, L. Fréchette. MISTIC - Micro Stirling Heat Engines for Thermal Energy Harvesting. Journal of Physics: Conference Series, 2019, 1407 (1), pp.012041. ⟨10.1088/1742-6596/1407/1/012041⟩. ⟨hal-04161054⟩
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