Thermodynamic engine powered by anisotropic fluctuations
The purpose of this paper is to present the concept of an autonomous Stirling-like engine powered by anisotropy of thermodynamic fluctuations. Specifically, simultaneous contact of a thermodynamic system with two heat baths along coupled degrees of freedom generates torque and circulatory currents—a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-06-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.4.023218 |
| _version_ | 1827285440438206464 |
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| author | Olga Movilla Miangolarra Amirhossein Taghvaei Yongxin Chen Tryphon T. Georgiou |
| author_facet | Olga Movilla Miangolarra Amirhossein Taghvaei Yongxin Chen Tryphon T. Georgiou |
| author_sort | Olga Movilla Miangolarra |
| collection | DOAJ |
| description | The purpose of this paper is to present the concept of an autonomous Stirling-like engine powered by anisotropy of thermodynamic fluctuations. Specifically, simultaneous contact of a thermodynamic system with two heat baths along coupled degrees of freedom generates torque and circulatory currents—an arrangement referred to as a Brownian gyrator. The embodiment that constitutes the engine includes an inertial wheel to sustain rotary motion and average out the generated fluctuating torque, ultimately delivering power to an external load. We detail an electrical model for such an engine that consists of two resistors in different temperatures and three reactive elements in the form of variable capacitors. The resistors generate Johnson-Nyquist current fluctuations that power the engine, while the capacitors generate driving forces via a coupling of their dielectric material with the inertial wheel. A proof-of-concept is established via stability analysis to ensure the existence of a stable periodic orbit generating sustained power output. We conclude by drawing a connection to the dynamics of a damped pendulum with constant torque and to those of a macroscopic Stirling engine. The sought insights aim at nanoengines and biological processes that are similarly powered by anisotropy in temperature and chemical potentials. |
| first_indexed | 2024-04-24T10:14:44Z |
| format | Article |
| id | doaj.art-1b466cb95e7e497387f708209f15f824 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:14:44Z |
| publishDate | 2022-06-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-1b466cb95e7e497387f708209f15f8242024-04-12T17:21:55ZengAmerican Physical SocietyPhysical Review Research2643-15642022-06-014202321810.1103/PhysRevResearch.4.023218Thermodynamic engine powered by anisotropic fluctuationsOlga Movilla MiangolarraAmirhossein TaghvaeiYongxin ChenTryphon T. GeorgiouThe purpose of this paper is to present the concept of an autonomous Stirling-like engine powered by anisotropy of thermodynamic fluctuations. Specifically, simultaneous contact of a thermodynamic system with two heat baths along coupled degrees of freedom generates torque and circulatory currents—an arrangement referred to as a Brownian gyrator. The embodiment that constitutes the engine includes an inertial wheel to sustain rotary motion and average out the generated fluctuating torque, ultimately delivering power to an external load. We detail an electrical model for such an engine that consists of two resistors in different temperatures and three reactive elements in the form of variable capacitors. The resistors generate Johnson-Nyquist current fluctuations that power the engine, while the capacitors generate driving forces via a coupling of their dielectric material with the inertial wheel. A proof-of-concept is established via stability analysis to ensure the existence of a stable periodic orbit generating sustained power output. We conclude by drawing a connection to the dynamics of a damped pendulum with constant torque and to those of a macroscopic Stirling engine. The sought insights aim at nanoengines and biological processes that are similarly powered by anisotropy in temperature and chemical potentials.http://doi.org/10.1103/PhysRevResearch.4.023218 |
| spellingShingle | Olga Movilla Miangolarra Amirhossein Taghvaei Yongxin Chen Tryphon T. Georgiou Thermodynamic engine powered by anisotropic fluctuations Physical Review Research |
| title | Thermodynamic engine powered by anisotropic fluctuations |
| title_full | Thermodynamic engine powered by anisotropic fluctuations |
| title_fullStr | Thermodynamic engine powered by anisotropic fluctuations |
| title_full_unstemmed | Thermodynamic engine powered by anisotropic fluctuations |
| title_short | Thermodynamic engine powered by anisotropic fluctuations |
| title_sort | thermodynamic engine powered by anisotropic fluctuations |
| url | http://doi.org/10.1103/PhysRevResearch.4.023218 |
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