Capillary enhanced phase change in a microfabricated self-oscillating fluidic heat engine (SOFHE)
Nooshin Karami,
Albert Tessier-Poirier,
Étienne Leveille
et al.
Abstract:This paper reports the design, fabrication, and characterization of a miniaturized version of a self-oscillating fluidic heat engine (SOFHE) for thermal energy harvesting. This new design includes capillary corners of a square cross-section, as well as an etched capillary path on the bottom wall that improves the performance in terms of stability and mechanical power owing to the enhanced phase change. The engine consists of a vapor bubble trapped in a microchannel by an oscillating liquid plug (acting as a pi… Show more
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