Measurements of the PVTx Properties of Binary Refrigerant R 12 + R 22 System : Second Report: PVTx State-surface and Composition Dependence of the Thermodynamic Properties
スポンサーリンク
概要
- 論文の詳細を見る
For representing PVTx state-surface of a binary refrigerant R 12+R 22 system, B-W-R equations of state for both pure components in combination with mixing rules for the coefficients were applied. Proposed B-W-R equations of state with new mixing rules for the system of interest were developed based on the PVTx measurements for seven different compositions obtained by a constant-volume method coupled with several isothermal expansion procedures. The dew- and bubble-point curves of the present system were determined by analyzing these PVTx measurements graphically. The B-W-R equations of state with the mixing rules proposed here represent the PVTx measurements with an average pressure-deviation of 0.67% over a wide range of temperatures 300 to 420 K, of pressures up to 9 MPa and of densities up to 900 kg/m^3. The composition dependence of the thermodynamic properties of density, isobaric specific heat capacity, enthalpy and entropy is discussed in detail.
- 一般社団法人日本機械学会の論文
著者
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Kagawa N
National Defense Acad. Kanagawa
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Kagawa Noboru
Department Of Mechanical Systems Engineering National Defense Academy
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UEMATSU Masahiko
Department of Mechanical Engineering, Keio University
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WATANABE Koichi
Department of Mechanical Engineering, Keio University
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TAKAISHI Yoshinori
Department of Mechanical Engineering, Ikutoku Technical University
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KAGAWA Noboru
Major Appliance Products Engineering Laboratory, Toshiba Corporation
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WATANBE Koichi
Department of Mechanical Engineering, Keio University
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Watanbe Koichi
Department Of Mechanical Engineering Keio University
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Uematsu M
Keio Univ. Yokohama Jpn
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Uematsu Masahiko
Department Of Machanical Engineering Keio University
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Takaishi Yoshinori
Department Of Mechanical Engineering Ikutoku Technical University
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Takaishi Yoshinori
Department Of Mechanical Engineering Faculty Of Engineering Kanagawa Institute Of Technology
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Watanabe Koichi
Department Of Mechanical Engineering Faculty Of Engineering Keio University.
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Watanabe Koichi
Department Of Materials Chemistry Faculty Of Engineering Gunma University
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Kagawa Noboru
Major Appliance Products Engineering Laboratory Toshiba Corporation
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WATANABE Koichi
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo:CREST, Japan Science and Technology Agency(JST)
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