btaining efficient thermal engines from interacting Brownian particles under time-periodic driving

Author(s)

Mamede, Iago N. ^[1] ; Harunari, Pedro E. ^{[1, 2]} ; Akasaki, Bruno A. N. ^[1] ; Proesmans, Karel ^{[3, 2, 4]} ; Fiore, C. E. ^[1]

Affiliation

^[1] Univ Sao Paulo, Inst Fis, BR-05314970 Sao Paulo - Brazil

^[2] Univ Luxembourg, Complex Syst & Stat Mech, Phys & Mat Sci Res Unit, L-1511 Luxembourg - Luxembourg

^[3] Hasselt Univ, B-3590 Diepenbeek - Belgium

^[4] Univ Copenhagen, Niels Bohr Inst, Blegdamsvej 17, Copenhagen - Denmark

• Document type: Journal article
• Source: Physical Review E; v. 105, n. 2 FEB 4 2022.
• Web of Science Citations: 0

Abstract

We introduce an alternative route for obtaining reliable cyclic engines, based on two interacting Brownian particles under time-periodic drivings which can be used as a work-to-work converter or a heat engine. Exact expressions for the thermodynamic fluxes, such as power and heat, are obtained using the framework of stochastic thermodynamic. We then use these exact expression to optimize the driving protocols with respect to output forces, their phase difference. For the work-to-work engine, they are solely expressed in terms of Onsager coefficients and their derivatives, whereas nonlinear effects start to play a role since the particles are at different temperatures. Our results suggest that stronger coupling generally leads to better performance, but careful design is needed to optimize the external forces. (AU)

• FAPESP's process: 20/03708-8 - Effective efficiency (spin-off: physicality of time reversal)
• Grantee: Pedro Eduardo Harunari
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate (Direct)
• FAPESP's process: 17/24567-0 - Phase transition, temporal disorder and entropy production in systems with inversion symmetry
• Grantee: Pedro Eduardo Harunari
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 21/03372-2 - Stochastic thermodynamics of phase transitions and periodically driven systems
• Grantee: Carlos Eduardo Fiore dos Santos
• Support Opportunities: Regular Research Grants
• FAPESP's process: 20/12021-6 - Stochastic thermodynamics and efficiency of linear chains under periodically drivings
• Grantee: Iago Nascimento Mamede
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 18/02405-1 - Temporal disorder and entropy production in nonequilibrium systems with symmetry Z2
• Grantee: Carlos Eduardo Fiore dos Santos
• Support Opportunities: Regular Research Grants