| 研究課題/領域番号 |
21K18693
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| 研究機関 | 九州大学 |
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研究代表者 |
李 秦宜 九州大学, 工学研究院, 准教授 (60792041)
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| 研究分担者 |
高橋 厚史 九州大学, 工学研究院, 教授 (10243924)
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| 研究期間 (年度) |
2021-07-09 – 2023-03-31
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| キーワード | 熱流体発電素子 / カーボンナノチューブ / ナノチャネル / グラフェン |
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| 研究実績の概要 |
In FY2021, mainly three studies have been implemented related to the energy harvesting with thermofluidics. First, we have developed a more accurate method to quantitatively characterize the slip flow in graphene nanochannels. To accurately measure the slip length in rectangular nanochannels, we developed a 3D capillary flow model that fully considers the nonuniform cross-section velocity profile, slip boundary conditions, as well as the dynamic contact angle. Using this measurement method, we have successfully measured the water slip length changing with the surface charge density. One related paper has been published in a well-recognized journal. Second, we have successfully measured the voltage generated by flow in an individual nanochannel. Third, we have successfully infused different fluids into a single carbon nanotube, which will be used for electrification tests.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
This project aims to elucidate the electrification phenomena with thermofluids using nanoscale measurements, and to provide guidance for the design of thermofluid-based energy harvesting devices. In FY2021, we have successfully fabricated nanoscale thermofluid devices, measured the flow characteristics, established the electrification measurement method and obtained the voltage generated by the thermofluid phenomena. Related results have been published in journals and reported in conferences.
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| 今後の研究の推進方策 |
In FY2022, we will first systematically study the thermofluid electrification phenomena in an individual nanochannel and elucidate the related physical mechanisms. Second, we will study the thermofluid electrification effects with individual low-dimensional materials.
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| 次年度使用額が生じた理由 |
次年度使用額が生じた理由:delayed maintenance of experimental equipment; cancelled collaboration, business trips and conferences due to COVID
使用計画:実験装置の維持費用、消耗品の購入、学会参加費と旅費、共同研究による人件費や謝金
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