研究等業績 - その他 - 足立 高弘
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Goto F.
Physical Review Fluids ( Physical Review Fluids ) 6 ( 11 ) 2021年11月
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電動ターボコンプレッサを用いた航空機用環境制御装置のエネルギ回収
高橋 賢次, 足立 高弘, 石井 將太郎, 関 直喜, 大依 仁
熱工学コンファレンス講演論文集 ( 一般社団法人 日本機械学会 ) 2021 ( 0 ) 0120 2021年
<p>In a general electric Environmental-Control-System(ECS), the conditioned air supplied inside the cabin of aircraft is discharged outside without being effectively used. The air passed through the cabin obtains a non-negligible amount of heat from electronic devices and passengers. Therefore, in this research, we propose the use of an electric turbo compressor that recovers energy with a turbine and returns power to the electric compressor before discarding air. We will investigate a thermo dynamic analysis to obtain the energy recovery rate under the configuration with two electric turbo compressor.</p>
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電動コンプレッサを用いた新しい航空機用環境制御装置(ECS)のサイクル解析とエネルギー回収
高橋 賢次, 足立 高弘, 石井 將太郎, 関 直喜, ⼤依 仁
東北支部総会・講演会 講演論文集 ( 一般社団法人 日本機械学会 ) 2021.56 ( 0 ) 114_paper 2021年
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佐藤 靖憲, 菅原 一昭, 足立 高弘
雪氷研究大会講演要旨集 ( 公益社団法人 日本雪氷学会／日本雪工学会 ) 2020 ( 0 ) 85 - 85 2020年
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回転円すいによる膜状および糸状揚水の揚水開始回転数と無次元化
金森 潤, 足立 高弘, 岡島 淳之介
東北支部総会・講演会 講演論文集 ( 一般社団法人 日本機械学会 ) 2020 ( 0 ) 2020年
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誘導加熱を用いた回転円すいディスク式薄膜揚水蒸発機構に必要な消費トルク
近江 春祐, 足立 高弘, 岡島 淳之介
東北支部総会・講演会 講演論文集 ( 一般社団法人 日本機械学会 ) 2020 ( 0 ) 2020年
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Energy Recovery Rate from an Electric Air-Cycle System under the Cruising Altitude and Speed
Adachi T.
SAE Technical Papers ( SAE Technical Papers ) 2019-September ( September ) 2019年09月
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近江 春祐, 足立 高弘
年次大会 ( 一般社団法人 日本機械学会 ) 2019 ( 0 ) 2019年
<p>A rotating cone composed of simple structure causes a pumping-up phenomena, where filmwise or filamentwise flow pattern is generated depending on the viscosity along the slope of the cone. In this paper, we propose a heating mechanism of the flow, which uses an induction heating with permanent magnetics. The mechanism heats the flow without disturbing and contacting the flow. However, a necessary force to rotate the cone under the magnetic field is unclear. So, we investigate the relation between the necessary torque and the rotation rate. It is found that an increasing rate of the necessary torque is decreasing as the rotation rate is increasing. This is mainly because the Lorentz force is decreasing due to the induction heating.</p>
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回転円すいを用いた揚水現象における揚水開始回転数と粘度および浸水量の関係
金森 潤, 足立 高弘
年次大会 ( 一般社団法人 日本機械学会 ) 2019 ( 0 ) 2019年
<p>It is confirmed that a cone rotating at the liquid surface causes pumping-up of liquid, where the cone is immersed by the top upside down. If the rotation rate exceeds a critical threshold, the pumping-up phenomena occur. The flow of the pumping-up phenomena is classified into two patterns such as film-wise and filament-wise. The critical threshold of the rotation rate and the resultant flow pattern depend on mainly the viscosity, immersed diameter of the cone and angle of cone. We will try to obtain a correlation of rotation rate, viscosity, immersed diameter and angle of cone on the threshold of pumping-up phenomena in order to elucidate the pumping-up mechanism. It is found that there are three categories depending on the viscosity classified as film-wise pumping-up region for the low viscosity, filament-wise pumping-up one for the high viscosity, and no pumping-up phenomenon occurs for intermediate viscosity.</p>
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薄木 健太郎, 足立 高弘
年次大会 ( 一般社団法人 日本機械学会 ) 2019 ( 0 ) 2019年
<p>In our study，we develop a new method how to use cold energy in a cold area．In the system，a basic principle that the volume of water shows ten percent increase when it is frozen．If the air and water are enclosed in an airtight container at the same time，the air is pressed by the frozen water when the water starts to freeze．The pressed air can be stored into an accumulator．Even in a winter season in a cold area，the air temperature outside can across the freezing point in a day．This means that the phase change both from water to ice and from ice to water can repeat in each day．Then， the pressure from the pressed air can be increased in an accumulator due to the repeated phase change．We develop a new cold energy conversion system in this study．</p>
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近江 春祐, 足立 高弘
年次大会 ( 一般社団法人 日本機械学会 ) 2019 ( 0 ) S05515 2019年
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薄木 健太郎, 足立 高弘
年次大会 ( 一般社団法人 日本機械学会 ) 2019 ( 0 ) J05318P 2019年
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回転円すいによる糸状揚水を用いた繊維製造技術への応用
足立 高弘
ケミカル エンジニヤリング 63 ( 12 ) 15 - 18 2018年12月 [招待有り]
研究論文（その他学術会議資料等） 単著
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Correlation of oxygen mass transfer and power consumption in an aeration system by a rotating cone
Adachi T.
Chemical Engineering and Processing - Process Intensification ( Chemical Engineering and Processing - Process Intensification ) 125 105 - 111 2018年03月
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Film flow thickness along the outer surface of rotating cones
Adachi T.
European Journal of Mechanics, B/Fluids ( European Journal of Mechanics, B/Fluids ) 68 39 - 44 2018年03月
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薄木 健太郎, 足立 高弘
熱工学コンファレンス講演論文集 ( 一般社団法人 日本機械学会 ) 2018 ( 0 ) 2018年
<p>In our study, we develop a new method how to use cold energy in a cold area. In the system, a basic principle that the volume of water shows ten percent increase when it is frozen. If the air and water are enclosed in an airtight container at the same time, the air is pressed by the frozen water when the water starts to freeze. The pressed air can be stored into an accumulator. Even in a winter season in a cold area, the air temperature outside can across the freezing point in a day. This means that the phase change both from water to ice and from ice to water can repeat in each day. Then, the pressure from the pressed air can be increased in an accumulator due to the repeated phase change. We develop a new cold energy conversion system in this study. </p>
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Laminar-Turbulent transition regimes in the conical Taylor-Couette flow system
Yahi F.
EPJ Web of Conferences ( EPJ Web of Conferences ) 143 2017年05月