Multi-physics modelling approach for oscillatory microengines: application for a microStirling generator design
[摘要] An electrical circuit equivalent (ECE) approach has been set up allowing elementary oscillatory microengine components to be modelled. They cover gas channel/chamber thermodynamics, viscosity and thermal effects, mechanical structure and electromechanical transducers. The proposed tool has been validated on a centimeter scale Free Piston membrane Stirling engine [1]. We propose here new developments taking into account scaling effects to establish models suitable for any microengines. They are based on simplifications derived from the comparison of the hydraulic radius with respect to the viscous and thermal penetration depths respectively).
[发布日期] [发布机构] SYMME, Université Savoie Mont Blanc, Annecy; 74000, France^1;Université de Sherbrooke, Département de Génie Mécanique, 2500 boul. Université, Sherbrooke; QC; J1K 2R1, Canada^2
[效力级别] 能源学 [学科分类]
[关键词] Centimeter-scale;Electrical circuit;Electro-mechanical transducers;Generator design;Hydraulic radius;Mechanical structures;Multi-physics modelling;Thermal penetration depths [时效性]
