Flow Characteristics of a Refrigerant-Oil Mixture in a Vapor Compression Heat Pump Heat Exchanger for Space Applications
Abstract The vapor compression heat pump is considered as the best option for aerospace thermal control system. The heat exchanger in vapor compression heat pump is a component that is greatly influenced by the cosmic environment. Lubricating oil enters heat pump system with a refrigerant under micr...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Ma, Rui [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Schlagwörter: |
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| Anmerkung: |
© Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of thermal science - Berlin : Springer, 1992, 31(2022), 2 vom: 05. Feb., Seite 407-416 |
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| Übergeordnetes Werk: |
volume:31 ; year:2022 ; number:2 ; day:05 ; month:02 ; pages:407-416 |
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| DOI / URN: |
10.1007/s11630-022-1580-2 |
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SPR050555987 |
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| 520 | |a Abstract The vapor compression heat pump is considered as the best option for aerospace thermal control system. The heat exchanger in vapor compression heat pump is a component that is greatly influenced by the cosmic environment. Lubricating oil enters heat pump system with a refrigerant under microgravity, and the entrance of the lubricant increases the complexity of the flow. In this work, FLUENT software was used to study the flow and lubricant deposition of a two-phase mixture of lubricant POE RL 68H and refrigerant R134a in a heat exchanger without the consideration of phase-change heat transfer. The functional relationships between the oil film thickness and the proportion of lubricating oil, the gravitational acceleration, the inlet flow velocity, and the placement directions of the two phases of oil in the heat exchanger were established. The results demonstrate that with the increase of the gravitational acceleration and the lubricating oil content, the thickness of the oil film will exhibit an S-type change in line with the Boltzmann function, and the amount of lubricating oil deposition will increase. With the increase of the flow velocity, the thickness of the oil film will exhibit an exponential decline. | ||
| 650 | 4 | |a heat exchanger |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a two-phase flow |7 (dpeaa)DE-He213 | |
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| 650 | 4 | |a numerical simulation |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a vapor compression heat pump |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Ye, Yilin |4 aut | |
| 700 | 1 | |a Ma, Xudong |4 aut | |
| 700 | 1 | |a Wu, Yuting |4 aut | |
| 700 | 1 | |a Yan, Suying |4 aut | |
| 700 | 1 | |a Wang, Feng |4 aut | |
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10.1007/s11630-022-1580-2 doi (DE-627)SPR050555987 (SPR)s11630-022-1580-2-e DE-627 ger DE-627 rakwb eng Ma, Rui verfasserin aut Flow Characteristics of a Refrigerant-Oil Mixture in a Vapor Compression Heat Pump Heat Exchanger for Space Applications 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022 Abstract The vapor compression heat pump is considered as the best option for aerospace thermal control system. The heat exchanger in vapor compression heat pump is a component that is greatly influenced by the cosmic environment. Lubricating oil enters heat pump system with a refrigerant under microgravity, and the entrance of the lubricant increases the complexity of the flow. In this work, FLUENT software was used to study the flow and lubricant deposition of a two-phase mixture of lubricant POE RL 68H and refrigerant R134a in a heat exchanger without the consideration of phase-change heat transfer. The functional relationships between the oil film thickness and the proportion of lubricating oil, the gravitational acceleration, the inlet flow velocity, and the placement directions of the two phases of oil in the heat exchanger were established. The results demonstrate that with the increase of the gravitational acceleration and the lubricating oil content, the thickness of the oil film will exhibit an S-type change in line with the Boltzmann function, and the amount of lubricating oil deposition will increase. With the increase of the flow velocity, the thickness of the oil film will exhibit an exponential decline. heat exchanger (dpeaa)DE-He213 two-phase flow (dpeaa)DE-He213 microgravity (dpeaa)DE-He213 numerical simulation (dpeaa)DE-He213 vapor compression heat pump (dpeaa)DE-He213 Ye, Yilin aut Ma, Xudong aut Wu, Yuting aut Yan, Suying aut Wang, Feng aut Enthalten in Journal of thermal science Berlin : Springer, 1992 31(2022), 2 vom: 05. Feb., Seite 407-416 (DE-627)528360884 (DE-600)2280144-3 1993-033X nnns volume:31 year:2022 number:2 day:05 month:02 pages:407-416 https://dx.doi.org/10.1007/s11630-022-1580-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 31 2022 2 05 02 407-416 |
| spelling |
10.1007/s11630-022-1580-2 doi (DE-627)SPR050555987 (SPR)s11630-022-1580-2-e DE-627 ger DE-627 rakwb eng Ma, Rui verfasserin aut Flow Characteristics of a Refrigerant-Oil Mixture in a Vapor Compression Heat Pump Heat Exchanger for Space Applications 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022 Abstract The vapor compression heat pump is considered as the best option for aerospace thermal control system. The heat exchanger in vapor compression heat pump is a component that is greatly influenced by the cosmic environment. Lubricating oil enters heat pump system with a refrigerant under microgravity, and the entrance of the lubricant increases the complexity of the flow. In this work, FLUENT software was used to study the flow and lubricant deposition of a two-phase mixture of lubricant POE RL 68H and refrigerant R134a in a heat exchanger without the consideration of phase-change heat transfer. The functional relationships between the oil film thickness and the proportion of lubricating oil, the gravitational acceleration, the inlet flow velocity, and the placement directions of the two phases of oil in the heat exchanger were established. The results demonstrate that with the increase of the gravitational acceleration and the lubricating oil content, the thickness of the oil film will exhibit an S-type change in line with the Boltzmann function, and the amount of lubricating oil deposition will increase. With the increase of the flow velocity, the thickness of the oil film will exhibit an exponential decline. heat exchanger (dpeaa)DE-He213 two-phase flow (dpeaa)DE-He213 microgravity (dpeaa)DE-He213 numerical simulation (dpeaa)DE-He213 vapor compression heat pump (dpeaa)DE-He213 Ye, Yilin aut Ma, Xudong aut Wu, Yuting aut Yan, Suying aut Wang, Feng aut Enthalten in Journal of thermal science Berlin : Springer, 1992 31(2022), 2 vom: 05. Feb., Seite 407-416 (DE-627)528360884 (DE-600)2280144-3 1993-033X nnns volume:31 year:2022 number:2 day:05 month:02 pages:407-416 https://dx.doi.org/10.1007/s11630-022-1580-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 31 2022 2 05 02 407-416 |
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10.1007/s11630-022-1580-2 doi (DE-627)SPR050555987 (SPR)s11630-022-1580-2-e DE-627 ger DE-627 rakwb eng Ma, Rui verfasserin aut Flow Characteristics of a Refrigerant-Oil Mixture in a Vapor Compression Heat Pump Heat Exchanger for Space Applications 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022 Abstract The vapor compression heat pump is considered as the best option for aerospace thermal control system. The heat exchanger in vapor compression heat pump is a component that is greatly influenced by the cosmic environment. Lubricating oil enters heat pump system with a refrigerant under microgravity, and the entrance of the lubricant increases the complexity of the flow. In this work, FLUENT software was used to study the flow and lubricant deposition of a two-phase mixture of lubricant POE RL 68H and refrigerant R134a in a heat exchanger without the consideration of phase-change heat transfer. The functional relationships between the oil film thickness and the proportion of lubricating oil, the gravitational acceleration, the inlet flow velocity, and the placement directions of the two phases of oil in the heat exchanger were established. The results demonstrate that with the increase of the gravitational acceleration and the lubricating oil content, the thickness of the oil film will exhibit an S-type change in line with the Boltzmann function, and the amount of lubricating oil deposition will increase. With the increase of the flow velocity, the thickness of the oil film will exhibit an exponential decline. heat exchanger (dpeaa)DE-He213 two-phase flow (dpeaa)DE-He213 microgravity (dpeaa)DE-He213 numerical simulation (dpeaa)DE-He213 vapor compression heat pump (dpeaa)DE-He213 Ye, Yilin aut Ma, Xudong aut Wu, Yuting aut Yan, Suying aut Wang, Feng aut Enthalten in Journal of thermal science Berlin : Springer, 1992 31(2022), 2 vom: 05. Feb., Seite 407-416 (DE-627)528360884 (DE-600)2280144-3 1993-033X nnns volume:31 year:2022 number:2 day:05 month:02 pages:407-416 https://dx.doi.org/10.1007/s11630-022-1580-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 31 2022 2 05 02 407-416 |
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10.1007/s11630-022-1580-2 doi (DE-627)SPR050555987 (SPR)s11630-022-1580-2-e DE-627 ger DE-627 rakwb eng Ma, Rui verfasserin aut Flow Characteristics of a Refrigerant-Oil Mixture in a Vapor Compression Heat Pump Heat Exchanger for Space Applications 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022 Abstract The vapor compression heat pump is considered as the best option for aerospace thermal control system. The heat exchanger in vapor compression heat pump is a component that is greatly influenced by the cosmic environment. Lubricating oil enters heat pump system with a refrigerant under microgravity, and the entrance of the lubricant increases the complexity of the flow. In this work, FLUENT software was used to study the flow and lubricant deposition of a two-phase mixture of lubricant POE RL 68H and refrigerant R134a in a heat exchanger without the consideration of phase-change heat transfer. The functional relationships between the oil film thickness and the proportion of lubricating oil, the gravitational acceleration, the inlet flow velocity, and the placement directions of the two phases of oil in the heat exchanger were established. The results demonstrate that with the increase of the gravitational acceleration and the lubricating oil content, the thickness of the oil film will exhibit an S-type change in line with the Boltzmann function, and the amount of lubricating oil deposition will increase. With the increase of the flow velocity, the thickness of the oil film will exhibit an exponential decline. heat exchanger (dpeaa)DE-He213 two-phase flow (dpeaa)DE-He213 microgravity (dpeaa)DE-He213 numerical simulation (dpeaa)DE-He213 vapor compression heat pump (dpeaa)DE-He213 Ye, Yilin aut Ma, Xudong aut Wu, Yuting aut Yan, Suying aut Wang, Feng aut Enthalten in Journal of thermal science Berlin : Springer, 1992 31(2022), 2 vom: 05. Feb., Seite 407-416 (DE-627)528360884 (DE-600)2280144-3 1993-033X nnns volume:31 year:2022 number:2 day:05 month:02 pages:407-416 https://dx.doi.org/10.1007/s11630-022-1580-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 31 2022 2 05 02 407-416 |
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10.1007/s11630-022-1580-2 doi (DE-627)SPR050555987 (SPR)s11630-022-1580-2-e DE-627 ger DE-627 rakwb eng Ma, Rui verfasserin aut Flow Characteristics of a Refrigerant-Oil Mixture in a Vapor Compression Heat Pump Heat Exchanger for Space Applications 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022 Abstract The vapor compression heat pump is considered as the best option for aerospace thermal control system. The heat exchanger in vapor compression heat pump is a component that is greatly influenced by the cosmic environment. Lubricating oil enters heat pump system with a refrigerant under microgravity, and the entrance of the lubricant increases the complexity of the flow. In this work, FLUENT software was used to study the flow and lubricant deposition of a two-phase mixture of lubricant POE RL 68H and refrigerant R134a in a heat exchanger without the consideration of phase-change heat transfer. The functional relationships between the oil film thickness and the proportion of lubricating oil, the gravitational acceleration, the inlet flow velocity, and the placement directions of the two phases of oil in the heat exchanger were established. The results demonstrate that with the increase of the gravitational acceleration and the lubricating oil content, the thickness of the oil film will exhibit an S-type change in line with the Boltzmann function, and the amount of lubricating oil deposition will increase. With the increase of the flow velocity, the thickness of the oil film will exhibit an exponential decline. heat exchanger (dpeaa)DE-He213 two-phase flow (dpeaa)DE-He213 microgravity (dpeaa)DE-He213 numerical simulation (dpeaa)DE-He213 vapor compression heat pump (dpeaa)DE-He213 Ye, Yilin aut Ma, Xudong aut Wu, Yuting aut Yan, Suying aut Wang, Feng aut Enthalten in Journal of thermal science Berlin : Springer, 1992 31(2022), 2 vom: 05. Feb., Seite 407-416 (DE-627)528360884 (DE-600)2280144-3 1993-033X nnns volume:31 year:2022 number:2 day:05 month:02 pages:407-416 https://dx.doi.org/10.1007/s11630-022-1580-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 31 2022 2 05 02 407-416 |
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Enthalten in Journal of thermal science 31(2022), 2 vom: 05. Feb., Seite 407-416 volume:31 year:2022 number:2 day:05 month:02 pages:407-416 |
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Ma, Rui @@aut@@ Ye, Yilin @@aut@@ Ma, Xudong @@aut@@ Wu, Yuting @@aut@@ Yan, Suying @@aut@@ Wang, Feng @@aut@@ |
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The heat exchanger in vapor compression heat pump is a component that is greatly influenced by the cosmic environment. Lubricating oil enters heat pump system with a refrigerant under microgravity, and the entrance of the lubricant increases the complexity of the flow. In this work, FLUENT software was used to study the flow and lubricant deposition of a two-phase mixture of lubricant POE RL 68H and refrigerant R134a in a heat exchanger without the consideration of phase-change heat transfer. The functional relationships between the oil film thickness and the proportion of lubricating oil, the gravitational acceleration, the inlet flow velocity, and the placement directions of the two phases of oil in the heat exchanger were established. The results demonstrate that with the increase of the gravitational acceleration and the lubricating oil content, the thickness of the oil film will exhibit an S-type change in line with the Boltzmann function, and the amount of lubricating oil deposition will increase. 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Flow Characteristics of a Refrigerant-Oil Mixture in a Vapor Compression Heat Pump Heat Exchanger for Space Applications heat exchanger (dpeaa)DE-He213 two-phase flow (dpeaa)DE-He213 microgravity (dpeaa)DE-He213 numerical simulation (dpeaa)DE-He213 vapor compression heat pump (dpeaa)DE-He213 |
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flow characteristics of a refrigerant-oil mixture in a vapor compression heat pump heat exchanger for space applications |
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Flow Characteristics of a Refrigerant-Oil Mixture in a Vapor Compression Heat Pump Heat Exchanger for Space Applications |
| abstract |
Abstract The vapor compression heat pump is considered as the best option for aerospace thermal control system. The heat exchanger in vapor compression heat pump is a component that is greatly influenced by the cosmic environment. Lubricating oil enters heat pump system with a refrigerant under microgravity, and the entrance of the lubricant increases the complexity of the flow. In this work, FLUENT software was used to study the flow and lubricant deposition of a two-phase mixture of lubricant POE RL 68H and refrigerant R134a in a heat exchanger without the consideration of phase-change heat transfer. The functional relationships between the oil film thickness and the proportion of lubricating oil, the gravitational acceleration, the inlet flow velocity, and the placement directions of the two phases of oil in the heat exchanger were established. The results demonstrate that with the increase of the gravitational acceleration and the lubricating oil content, the thickness of the oil film will exhibit an S-type change in line with the Boltzmann function, and the amount of lubricating oil deposition will increase. With the increase of the flow velocity, the thickness of the oil film will exhibit an exponential decline. © Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022 |
| abstractGer |
Abstract The vapor compression heat pump is considered as the best option for aerospace thermal control system. The heat exchanger in vapor compression heat pump is a component that is greatly influenced by the cosmic environment. Lubricating oil enters heat pump system with a refrigerant under microgravity, and the entrance of the lubricant increases the complexity of the flow. In this work, FLUENT software was used to study the flow and lubricant deposition of a two-phase mixture of lubricant POE RL 68H and refrigerant R134a in a heat exchanger without the consideration of phase-change heat transfer. The functional relationships between the oil film thickness and the proportion of lubricating oil, the gravitational acceleration, the inlet flow velocity, and the placement directions of the two phases of oil in the heat exchanger were established. The results demonstrate that with the increase of the gravitational acceleration and the lubricating oil content, the thickness of the oil film will exhibit an S-type change in line with the Boltzmann function, and the amount of lubricating oil deposition will increase. With the increase of the flow velocity, the thickness of the oil film will exhibit an exponential decline. © Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022 |
| abstract_unstemmed |
Abstract The vapor compression heat pump is considered as the best option for aerospace thermal control system. The heat exchanger in vapor compression heat pump is a component that is greatly influenced by the cosmic environment. Lubricating oil enters heat pump system with a refrigerant under microgravity, and the entrance of the lubricant increases the complexity of the flow. In this work, FLUENT software was used to study the flow and lubricant deposition of a two-phase mixture of lubricant POE RL 68H and refrigerant R134a in a heat exchanger without the consideration of phase-change heat transfer. The functional relationships between the oil film thickness and the proportion of lubricating oil, the gravitational acceleration, the inlet flow velocity, and the placement directions of the two phases of oil in the heat exchanger were established. The results demonstrate that with the increase of the gravitational acceleration and the lubricating oil content, the thickness of the oil film will exhibit an S-type change in line with the Boltzmann function, and the amount of lubricating oil deposition will increase. With the increase of the flow velocity, the thickness of the oil film will exhibit an exponential decline. © Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022 |
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Flow Characteristics of a Refrigerant-Oil Mixture in a Vapor Compression Heat Pump Heat Exchanger for Space Applications |
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Ye, Yilin Ma, Xudong Wu, Yuting Yan, Suying Wang, Feng |
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|
| score |
7.4012003 |