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KAKEN_26400404seika.pdf
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Download
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:279.9 KB
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:Sep 21, 2017 |
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Total downloads since Sep 21, 2017 : 518
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| Title |
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熱電効果と熱現象の統計力学
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ネツデン コウカ ト ネツ ゲンショウ ノ トウケイ リキガク
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Netsuden koka to netsu gensho no tokei rikigaku
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Statistical physics on thermoelectricity and thermodynamic phenomena
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齊藤, 圭司
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サイトウ, ケイジ
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Saito, Keiji
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慶應義塾大学・理工学部・准教授
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Research team head
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科研費研究者番号 : 90312983
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2017
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科学研究費補助金研究成果報告書
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2016
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熱電現象とは, 電子を流すことができる導体を異なる温度の熱浴でつないで熱が流れた時, 同時に電流が流れる現象のことです。熱が電流に変換されその電流が外界に仕事をすることができるので, 熱電変換は典型的な熱機関と見做すことができます。本研究では, 熱電変換を含む幅広い熱機関で通用する, 効率と仕事率に関する議論を行いました。磁場が起因して起こるネルンスト効果や, コロイド粒子を操作して実現する微小な熱機関なども考察して, 効率と仕事率の間に成立する普遍的なトレードオフ関係式を導出しました。
Thermoelectric phenomenon is a phenomenon in which current flows simultaneously when heat flows by connecting conductors that allow electrons to flow through a thermal bath of different temperature. Thermoelectric conversion can be regarded as a typical heat engine because heat is converted to current and its current can work in the outside world. In this research, we discussed the thermodynamic efficiency and the power that are applicable to a wide range of heat engine including thermoelectric conversion. Considering the Nernst effect caused by the magnetic field and a small heat engine realized by manipulating colloidal particles, we derived a universal trade-off relation between efficiency and power.
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研究種目 : 基盤研究(C)(一般)
研究期間 : 2014～2016
課題番号 : 26400404
研究分野 : 非平衡統計物理学
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