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Molecular simulation and experimental validation for surface tension of new Low-GWP refrigerant mixtures R32/CF3I and R1123/CF3I
http://hdl.handle.net/10069/0002000093
http://hdl.handle.net/10069/0002000093b712530d-7e79-4a4d-87f9-87fd0d697823
名前 / ファイル | ライセンス | アクション |
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JML386_122532.pdf (1.5 MB)
Download is available from 2025/7/9.
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Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||
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公開日 | 2023-07-28 | |||||||||||||
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言語 | en | |||||||||||||
タイトル | Molecular simulation and experimental validation for surface tension of new Low-GWP refrigerant mixtures R32/CF3I and R1123/CF3I | |||||||||||||
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言語 | eng | |||||||||||||
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言語 | en | |||||||||||||
主題Scheme | Other | |||||||||||||
主題 | Surface tension | |||||||||||||
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言語 | en | |||||||||||||
主題Scheme | Other | |||||||||||||
主題 | Molecular simulation | |||||||||||||
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言語 | en | |||||||||||||
主題Scheme | Other | |||||||||||||
主題 | low GWP refrigerants | |||||||||||||
キーワード | ||||||||||||||
言語 | en | |||||||||||||
主題Scheme | Other | |||||||||||||
主題 | Refrigerant mixture | |||||||||||||
資源タイプ | ||||||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
資源タイプ | journal article | |||||||||||||
著者 |
KAWAHARA, Takemasa
× KAWAHARA, Takemasa
× IMAI, Tomoaki
× OKUMURA, Tetsuya
× KONDOU, Chieko
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内容記述タイプ | Abstract | |||||||||||||
内容記述 | This study demonstrated a new procedure for measuring surface tension using molecular dynamics (MD) simulations. The surface tension was measured by the differential capillary rise method for refrigerant mixtures R1123/CF3I and R32/CF3I, which have a low global warming potential. The information of the saturated density in the low-temperature region, which was necessary for data reduction, was supplemented by an MD simulation, which was validated using accurate measurement data near the critical point. The surface tension calculated from the pressure tensor obtained by the MD simulation deviated considerably. However, the surface tension obtained from the simulated density and composition in the vapor and liquid phases by the parachor method was in agreement with the measured values within the measurement uncertainty ranges from 0.15 mNm−1 to 0.35 mNm−1. The simulated density distribution showed positive surface activity at the vapor–liquid interface, indicating that R32 and R1123, with smaller polarities, tended to aggregate on the liquid surface. This helps interpret the empirically postulated decrease in the surface tension of the mixtures due to the concentration of substances with lower surface tension at the vapor–liquid interface. | |||||||||||||
言語 | en | |||||||||||||
書誌情報 |
en : Journal of Molecular Liquids 巻 386, p. art. no. 122532, 発行日 2023-07-10 |
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言語 | en | |||||||||||||
出版者 | Elsevier B.V. | |||||||||||||
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収録物識別子タイプ | ISSN | |||||||||||||
収録物識別子 | 01677322 | |||||||||||||
DOI | ||||||||||||||
関連タイプ | isIdenticalTo | |||||||||||||
識別子タイプ | DOI | |||||||||||||
関連識別子 | 10.1016/j.molliq.2023.122532 | |||||||||||||
権利 | ||||||||||||||
言語 | en | |||||||||||||
権利情報 | ⓒ 2023 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||||||||||
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出版タイプ | AM | |||||||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||
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内容記述タイプ | Other | |||||||||||||
内容記述 | Journal of Molecular Liquids, 386, art. no. 122532; 2023 |