Thermal conductivity measurements and correlations of pure R1243zf and binary mixtures of R32 + R1243zf and R32 + R1234yf
Thermal conductivity measurements of pure R1243zf and binary mixtures of R32 + R1243zf and R32 + R1234yf were conducted in the homogeneous liquid and vapour phases with a transient hot-wire technique. The mole fractions of R32 are 0.25, 0.50, and 0.75 in both binary systems. The temperature range of...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
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2021
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| Online Access: | http://purl.org/au-research/grants/arc/IC150100019 http://hdl.handle.net/20.500.11937/87785 |
| _version_ | 1848764937382395904 |
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| author | Kim, D. Liu, H. Yang, X. Yang, F. Morfitt, J. Arami-Niya, Arash Ryu, M. Duan, Y. May, E.F. |
| author_facet | Kim, D. Liu, H. Yang, X. Yang, F. Morfitt, J. Arami-Niya, Arash Ryu, M. Duan, Y. May, E.F. |
| author_sort | Kim, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Thermal conductivity measurements of pure R1243zf and binary mixtures of R32 + R1243zf and R32 + R1234yf were conducted in the homogeneous liquid and vapour phases with a transient hot-wire technique. The mole fractions of R32 are 0.25, 0.50, and 0.75 in both binary systems. The temperature range of the measurements was from (264.1 to 405.6) K with pressures ranging between (0.9 and 6.1) MPa. The transient hot-wire apparatus was validated with measurements of pure CO2 in both the liquid and vapour regions. The relative combined expanded uncertainty (k = 2) in the experimental thermal conductivity was approximately 2.0 %. The relative deviations of the measured thermal conductivities from those calculated using the extended corresponding states (ECS) model as implemented in the software REFPROP 10 were between (−13 and 10) % in the vapour phase, and between (−14 and 1) % in the liquid phase. Additionally, the performance of a new approach to predicting fluid transport properties, the residual entropy scaling model incorporating the cubic-plus-association equation of state (RES-CPA model) was tested for these mixtures by first determining the scaling parameter of pure R1243zf. The RES-CPA model was then able to predict the mixture thermal conductivities generally within 10 %, which is similar to the ECS model; however no additional parameters were introduced to the RES-CPA model to describe binary interactions. |
| first_indexed | 2025-11-14T11:27:17Z |
| format | Journal Article |
| id | curtin-20.500.11937-87785 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:27:17Z |
| publishDate | 2021 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-877852023-08-01T00:32:36Z Thermal conductivity measurements and correlations of pure R1243zf and binary mixtures of R32 + R1243zf and R32 + R1234yf Kim, D. Liu, H. Yang, X. Yang, F. Morfitt, J. Arami-Niya, Arash Ryu, M. Duan, Y. May, E.F. Thermal conductivity measurements of pure R1243zf and binary mixtures of R32 + R1243zf and R32 + R1234yf were conducted in the homogeneous liquid and vapour phases with a transient hot-wire technique. The mole fractions of R32 are 0.25, 0.50, and 0.75 in both binary systems. The temperature range of the measurements was from (264.1 to 405.6) K with pressures ranging between (0.9 and 6.1) MPa. The transient hot-wire apparatus was validated with measurements of pure CO2 in both the liquid and vapour regions. The relative combined expanded uncertainty (k = 2) in the experimental thermal conductivity was approximately 2.0 %. The relative deviations of the measured thermal conductivities from those calculated using the extended corresponding states (ECS) model as implemented in the software REFPROP 10 were between (−13 and 10) % in the vapour phase, and between (−14 and 1) % in the liquid phase. Additionally, the performance of a new approach to predicting fluid transport properties, the residual entropy scaling model incorporating the cubic-plus-association equation of state (RES-CPA model) was tested for these mixtures by first determining the scaling parameter of pure R1243zf. The RES-CPA model was then able to predict the mixture thermal conductivities generally within 10 %, which is similar to the ECS model; however no additional parameters were introduced to the RES-CPA model to describe binary interactions. 2021 Journal Article http://hdl.handle.net/20.500.11937/87785 10.1016/j.ijrefrig.2021.07.019 http://purl.org/au-research/grants/arc/IC150100019 http://creativecommons.org/licenses/by-nc-nd/4.0/ fulltext |
| spellingShingle | Kim, D. Liu, H. Yang, X. Yang, F. Morfitt, J. Arami-Niya, Arash Ryu, M. Duan, Y. May, E.F. Thermal conductivity measurements and correlations of pure R1243zf and binary mixtures of R32 + R1243zf and R32 + R1234yf |
| title | Thermal conductivity measurements and correlations of pure R1243zf and binary mixtures of R32 + R1243zf and R32 + R1234yf |
| title_full | Thermal conductivity measurements and correlations of pure R1243zf and binary mixtures of R32 + R1243zf and R32 + R1234yf |
| title_fullStr | Thermal conductivity measurements and correlations of pure R1243zf and binary mixtures of R32 + R1243zf and R32 + R1234yf |
| title_full_unstemmed | Thermal conductivity measurements and correlations of pure R1243zf and binary mixtures of R32 + R1243zf and R32 + R1234yf |
| title_short | Thermal conductivity measurements and correlations of pure R1243zf and binary mixtures of R32 + R1243zf and R32 + R1234yf |
| title_sort | thermal conductivity measurements and correlations of pure r1243zf and binary mixtures of r32 + r1243zf and r32 + r1234yf |
| url | http://purl.org/au-research/grants/arc/IC150100019 http://hdl.handle.net/20.500.11937/87785 |