Influence of nonlinearities on the power output of the Self-Oscillating Fluidic Heat Engine (SOFHE)

16th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Tessier-Poirier, A.^1,2 ; Monin, T.^1,2,3,4 ; Léveillé, E.^1,2 ; Formosa, F.^1,2,3 ; Monfray, S.^1 ; Fréchette, L.G.^1,2

3IT, Université de Sherbrooke, Sherbrooke

QC, Canada^1

LN2, CNRS UMI-3463, Université de Sherbrooke, Canada^2

SYMME, Université Savoie Mont-Blanc, Annecy-le-Vieux, France^3

STMicroelectronics, Crolles, France^4

关键词: Liquid columns;    Mechanical energies;    Potential power;    Power densities;    Self-oscillating;    Self-sustained oscillations;    Theoretical modeling;    Wireless sensor;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/773/1/012113/pdf
DOI  :  10.1088/1742-6596/773/1/012113

来源: IOP

【 摘 要 】

In this paper, it is shown that two non-linearities drive the oscillations amplitude and the potential power density of the Self-Oscillating Fluidic Heat Engine (SOFHE). This new type of engine converts thermal energy into mechanical energy by producing self-sustained oscillations of a liquid column from a continuous heat source to power wireless sensors from waste heat. The underlying theoretical modeling shows that the pressure and the temperature nonlinearities limit the final oscillations amplitude, hence its achievable power density.