Heating without heat: thermodynamics of passive energy filters between finite systems
| Autor: | Juan M. R. Parrondo, R. Muñoz-Tapia, Ricardo Brito |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Statistical Mechanics (cond-mat.stat-mech) media_common.quotation_subject Termodinámica Flow (psychology) Thermodynamics FOS: Physical sciences Second law of thermodynamics 01 natural sciences 010305 fluids & plasmas Maxwell's demon Filter (large eddy simulation) Transducer 0103 physical sciences Thermal Kinetic theory of gases 010306 general physics Condensed Matter - Statistical Mechanics Energy (signal processing) media_common |
| Zdroj: | E-Prints Complutense. Archivo Institucional de la UCM instname E-Prints Complutense: Archivo Institucional de la UCM Universidad Complutense de Madrid |
| DOI: | 10.48550/arxiv.1705.04657 |
| Popis: | Passive filters allowing the exchange of particles in a narrow band of energy are currently used in micro-refrigerators and energy transducers. In this letter, we analyze their thermal properties using linear irreversible thermodynamics and kinetic theory, and discuss a striking phenomenon: the possibility of increasing or decreasing simultaneously the temperatures of two systems without any supply of energy. This occurs when the filter induces a flow of particles whose energy is between the average energies of the two systems. Here we show that this selective transfer of particles does not need the action of any sort of Maxwell demon and can be carried out by passive filters without compromising the second law of thermodynamics. The phenomenon allows us to design cycles between two reservoirs at temperatures $T_1 Comment: 5 pages, 3 figures |
| Databáze: | OpenAIRE |
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