Efficiency at Maximum Power in a Parallel Connected Two Quantum Dots Heat Engine
In this paper, we proposed a model in which a single level of two quantum dots is connected in parallel and embedded between two leads with different temperatures and chemical potentials. The temperature and chemical potential gradient help the electron flow cyclically and act as a heat engine. We e...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/2023/6665740 |
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| _version_ | 1832546646361112576 |
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| author | Tibebe Birhanu Yigermal Bassie Yoseph Abebe Mulugeta Bekele |
| author_facet | Tibebe Birhanu Yigermal Bassie Yoseph Abebe Mulugeta Bekele |
| author_sort | Tibebe Birhanu |
| collection | DOAJ |
| description | In this paper, we proposed a model in which a single level of two quantum dots is connected in parallel and embedded between two leads with different temperatures and chemical potentials. The temperature and chemical potential gradient help the electron flow cyclically and act as a heat engine. We explore the thermodynamic properties of the model such as heat flux and power as a function of dot energy. We also carried out analytical and numerical solutions for efficiency at maximum power of the thermoelectric engine. The resulting efficiency of our engine agrees with the Curzon–Ahlborn expression up to quadratic terms in Carnot efficiency. |
| format | Article |
| id | doaj-art-18366a12a7cf47148dc82397656849e6 |
| institution | Kabale University |
| issn | 2314-4912 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-18366a12a7cf47148dc82397656849e62025-02-03T06:47:31ZengWileyJournal of Engineering2314-49122023-01-01202310.1155/2023/6665740Efficiency at Maximum Power in a Parallel Connected Two Quantum Dots Heat EngineTibebe Birhanu0Yigermal Bassie1Yoseph Abebe2Mulugeta Bekele3Department of PhysicsDepartment of PhysicsDepartment of PhysicsDepartment of PhysicsIn this paper, we proposed a model in which a single level of two quantum dots is connected in parallel and embedded between two leads with different temperatures and chemical potentials. The temperature and chemical potential gradient help the electron flow cyclically and act as a heat engine. We explore the thermodynamic properties of the model such as heat flux and power as a function of dot energy. We also carried out analytical and numerical solutions for efficiency at maximum power of the thermoelectric engine. The resulting efficiency of our engine agrees with the Curzon–Ahlborn expression up to quadratic terms in Carnot efficiency.http://dx.doi.org/10.1155/2023/6665740 |
| spellingShingle | Tibebe Birhanu Yigermal Bassie Yoseph Abebe Mulugeta Bekele Efficiency at Maximum Power in a Parallel Connected Two Quantum Dots Heat Engine Journal of Engineering |
| title | Efficiency at Maximum Power in a Parallel Connected Two Quantum Dots Heat Engine |
| title_full | Efficiency at Maximum Power in a Parallel Connected Two Quantum Dots Heat Engine |
| title_fullStr | Efficiency at Maximum Power in a Parallel Connected Two Quantum Dots Heat Engine |
| title_full_unstemmed | Efficiency at Maximum Power in a Parallel Connected Two Quantum Dots Heat Engine |
| title_short | Efficiency at Maximum Power in a Parallel Connected Two Quantum Dots Heat Engine |
| title_sort | efficiency at maximum power in a parallel connected two quantum dots heat engine |
| url | http://dx.doi.org/10.1155/2023/6665740 |
| work_keys_str_mv | AT tibebebirhanu efficiencyatmaximumpowerinaparallelconnectedtwoquantumdotsheatengine AT yigermalbassie efficiencyatmaximumpowerinaparallelconnectedtwoquantumdotsheatengine AT yosephabebe efficiencyatmaximumpowerinaparallelconnectedtwoquantumdotsheatengine AT mulugetabekele efficiencyatmaximumpowerinaparallelconnectedtwoquantumdotsheatengine |