Obtaining efficient collisional engines via velocity dependent drivings

Abstract

Brownian particles interacting sequentially with distinct temperatures and driving forces at each stroke have been tackled as a reliable alternative for the construction of engine setups. However they can behave very inefficiently depending on the driving used for the worksource and/or when temperatures of each stage are very different from each other. Inspired by some models for molecular motors and recent experimental studies, a coupling between driving and velocities is introduced as an alternative ingredient for enhancing the system performance. Here, the role of this new ingredient for levering the engine performance is detailed investigated from stochastic thermodynamics. Exact expressions for quantities and distinct maximization routes have been obtained and investigated. The search of an optimal coupling provides a substantial increase of engine performance (mainly efficiency), even for large $\Delta T$. A simple and general argument for the optimal coupling can be estimated, irrespective the driving and other model details.

arXiv comment10 pages, 8 figures, comments are welcome

References in corpus (21)

• Stochastic thermodynamics, fluctuation theorems, and molecular machines
• Self-motile colloidal particles: from directed propulsion to random walk
• The Physics of Maxwell's demon and information
• High-precision test of Landauer's principle in a feedback trap
• Brownian Carnot engine
• The Three Faces of the Second Law: I. Master Equation Formulation
• Quantum-dot Carnot engine at maximum power
• Thermodynamic and Logical Reversibilities Revisited
• Stochastic thermodynamics of active Brownian particles
• Stochastic approach to equilibrium and nonequilibrium thermodynamics
• Efficiency at maximum power of interacting molecular machines
• Single Particle Stochastic Heat Engine
• Collective power: Minimal model for thermodynamics of nonequilibrium phase transitions
• Brownian duet: A novel tale of thermodynamic efficiency
• Collective effects enhancing power and efficiency
• Universality in driven Potts models
• Efficiency of Single Particle Engines
• Maximal power for heat engines: role of asymmetric interaction times
• Obtaining efficient thermal engines from interacting Brownian particles under time dependent periodic drivings
• Thermodynamics of collisional models for Brownian particles: General properties and efficiency
• Hyperaccurate bounds in discrete-state Markovian systems

Cited by in corpus (1)

• Optimal control strategy for collisional Brownian engines