Diffusive-Flux-Driven Microturbines by Fore-and-Aft Asymmetric Phoresis

Shen, Mingren; Liu, Rui; Chen, Ke ✉; Yang, Mingcheng

Angol nyelvű Tudományos Szakcikk (Folyóiratcikk)
Megjelent: PHYSICAL REVIEW APPLIED 2331-7019 12 (3) Paper: 034051 , 8 p. 2019
  • SJR Scopus - Physics and Astronomy (miscellaneous): D1
    A turbine can convert translational kinetic energy of convective flows into rotation and is one of the most important machines to harvest energy from nature. Here, we propose a theoretical prototype of a micro-turbine that is powered purely by an external diffusive heat or mass flux. The turbine rotates perpendicular to the external thermal or chemical gradient due to fore-and-aft asymmetric thermophoresis or diffusiophoresis. Thus, its performance does not need alignment. The prototype turbine is validated by means of computer simulations. The results show that the angular velocity of the turbine sensitively depends on its structure and interactions with the solvent. This perpendicular-axis phoretic turbine provides large flexibility and the possibility to exploit existing thermal or chemical energies at small scales.
    Hivatkozás stílusok: IEEEACMAPAChicagoHarvardCSLMásolásNyomtatás
    2020-08-07 21:15