Efficiency of Brownian heat engines

I. Derényi, R. Dean Astumian

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

One-dimensional thermally driven Brownian ratchets or heat engines are investigated based on efficiency and two major issues, the sources of irreversibility and whether the irreversibility can be suppressed such that the efficiency approaches that of a Carnot cycle. The three basic setups, simultaneous, alternating in time, and position dependent, characterized by the type of connection between the Brownian particle and the two heat reservoirs, are analyzed. The heat flow is identified through the kinetic and the potential energy of the particle.

Original languageEnglish
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume59
Issue number6
Publication statusPublished - Jun 1999

Fingerprint

heat engines
Irreversibility
Engine
Heat
Brownian Ratchet
Carnot cycle
Heat Flow
heat transmission
engines
Kinetics
potential energy
Cycle
heat
Dependent
kinetics
Energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Statistical and Nonlinear Physics
  • Mathematical Physics

Cite this

Efficiency of Brownian heat engines. / Derényi, I.; Astumian, R. Dean.

In: Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 59, No. 6, 06.1999.

Research output: Contribution to journalArticle

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