Performance of a novel climate-adaptive temperature and humidity independent control system based on zeotropic mixture R32/R236fa
A climate-adaptive temperature and humidity independent control system (CATHICS) is proposed, of which heat and humidity ratio (ε) is adjustable to afford the changing indoor heat and humidity load. Zeotropic mixture R32/R236fa is employed due to its characteristic of temperature glide during phase...
Ausführliche Beschreibung
Autor*in: |
Zhu, Yutong [verfasserIn] Yin, Yonggao [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2021 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: Sustainable cities and society - Amsterdam [u.a.] : Elsevier, 2011, 76 |
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Übergeordnetes Werk: |
volume:76 |
DOI / URN: |
10.1016/j.scs.2021.103453 |
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Katalog-ID: |
ELV007064152 |
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245 | 1 | 0 | |a Performance of a novel climate-adaptive temperature and humidity independent control system based on zeotropic mixture R32/R236fa |
264 | 1 | |c 2021 | |
336 | |a nicht spezifiziert |b zzz |2 rdacontent | ||
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520 | |a A climate-adaptive temperature and humidity independent control system (CATHICS) is proposed, of which heat and humidity ratio (ε) is adjustable to afford the changing indoor heat and humidity load. Zeotropic mixture R32/R236fa is employed due to its characteristic of temperature glide during phase change. A module for composition regulation is incorporated based on boiling point difference of zeotropic mixture. High/low boiling point component increasing modes are operated when indoor air state deviates from the accuracy standard. Temperature glide regions of non-isothermal cooling sources change with the concentration of zeotropic mixture, which conforms to cascade utilization for moisture and heat load removal. The cooling and dehumidifying capacity of the chiller is regulated correspondingly. The models of evaporation temperature glide, affordable ε, cooling and dehumidification efficiency are established. The effects on the affordable ε are analyzed with the changing outdoor meteorological parameters and indoor personnel fluctuation. The relationship between mass concentration of working fluid and sliding temperature regions is revealed. The affordable ε varies from 3500 to 4700 kJ/kg, which illustrates that the CATHICS can totally afford changing heat and humidity load. The cooling and dehumidification efficiency are approximately 3.2 and 1.2. The vapor quality of the working fluid from the condenser is analyzed. The highly-integrated CATHICS is suitable for realizing individualized thermal comfort in residential buildings. | ||
650 | 4 | |a Heat and humidity ratio | |
650 | 4 | |a Zeotropic mixture | |
650 | 4 | |a Temperature glide | |
650 | 4 | |a Mass concentration | |
650 | 4 | |a Thermal comfort | |
700 | 1 | |a Yin, Yonggao |e verfasserin |4 aut | |
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10.1016/j.scs.2021.103453 doi (DE-627)ELV007064152 (ELSEVIER)S2210-6707(21)00726-5 DE-627 ger DE-627 rda eng 690 720 DE-600 Zhu, Yutong verfasserin aut Performance of a novel climate-adaptive temperature and humidity independent control system based on zeotropic mixture R32/R236fa 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A climate-adaptive temperature and humidity independent control system (CATHICS) is proposed, of which heat and humidity ratio (ε) is adjustable to afford the changing indoor heat and humidity load. Zeotropic mixture R32/R236fa is employed due to its characteristic of temperature glide during phase change. A module for composition regulation is incorporated based on boiling point difference of zeotropic mixture. High/low boiling point component increasing modes are operated when indoor air state deviates from the accuracy standard. Temperature glide regions of non-isothermal cooling sources change with the concentration of zeotropic mixture, which conforms to cascade utilization for moisture and heat load removal. The cooling and dehumidifying capacity of the chiller is regulated correspondingly. The models of evaporation temperature glide, affordable ε, cooling and dehumidification efficiency are established. The effects on the affordable ε are analyzed with the changing outdoor meteorological parameters and indoor personnel fluctuation. The relationship between mass concentration of working fluid and sliding temperature regions is revealed. The affordable ε varies from 3500 to 4700 kJ/kg, which illustrates that the CATHICS can totally afford changing heat and humidity load. The cooling and dehumidification efficiency are approximately 3.2 and 1.2. The vapor quality of the working fluid from the condenser is analyzed. The highly-integrated CATHICS is suitable for realizing individualized thermal comfort in residential buildings. Heat and humidity ratio Zeotropic mixture Temperature glide Mass concentration Thermal comfort Yin, Yonggao verfasserin aut Enthalten in Sustainable cities and society Amsterdam [u.a.] : Elsevier, 2011 76 Online-Ressource (DE-627)635602792 (DE-600)2573417-9 (DE-576)336956703 nnns volume:76 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 AR 76 |
spelling |
10.1016/j.scs.2021.103453 doi (DE-627)ELV007064152 (ELSEVIER)S2210-6707(21)00726-5 DE-627 ger DE-627 rda eng 690 720 DE-600 Zhu, Yutong verfasserin aut Performance of a novel climate-adaptive temperature and humidity independent control system based on zeotropic mixture R32/R236fa 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A climate-adaptive temperature and humidity independent control system (CATHICS) is proposed, of which heat and humidity ratio (ε) is adjustable to afford the changing indoor heat and humidity load. Zeotropic mixture R32/R236fa is employed due to its characteristic of temperature glide during phase change. A module for composition regulation is incorporated based on boiling point difference of zeotropic mixture. High/low boiling point component increasing modes are operated when indoor air state deviates from the accuracy standard. Temperature glide regions of non-isothermal cooling sources change with the concentration of zeotropic mixture, which conforms to cascade utilization for moisture and heat load removal. The cooling and dehumidifying capacity of the chiller is regulated correspondingly. The models of evaporation temperature glide, affordable ε, cooling and dehumidification efficiency are established. The effects on the affordable ε are analyzed with the changing outdoor meteorological parameters and indoor personnel fluctuation. The relationship between mass concentration of working fluid and sliding temperature regions is revealed. The affordable ε varies from 3500 to 4700 kJ/kg, which illustrates that the CATHICS can totally afford changing heat and humidity load. The cooling and dehumidification efficiency are approximately 3.2 and 1.2. The vapor quality of the working fluid from the condenser is analyzed. The highly-integrated CATHICS is suitable for realizing individualized thermal comfort in residential buildings. Heat and humidity ratio Zeotropic mixture Temperature glide Mass concentration Thermal comfort Yin, Yonggao verfasserin aut Enthalten in Sustainable cities and society Amsterdam [u.a.] : Elsevier, 2011 76 Online-Ressource (DE-627)635602792 (DE-600)2573417-9 (DE-576)336956703 nnns volume:76 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 AR 76 |
allfields_unstemmed |
10.1016/j.scs.2021.103453 doi (DE-627)ELV007064152 (ELSEVIER)S2210-6707(21)00726-5 DE-627 ger DE-627 rda eng 690 720 DE-600 Zhu, Yutong verfasserin aut Performance of a novel climate-adaptive temperature and humidity independent control system based on zeotropic mixture R32/R236fa 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A climate-adaptive temperature and humidity independent control system (CATHICS) is proposed, of which heat and humidity ratio (ε) is adjustable to afford the changing indoor heat and humidity load. Zeotropic mixture R32/R236fa is employed due to its characteristic of temperature glide during phase change. A module for composition regulation is incorporated based on boiling point difference of zeotropic mixture. High/low boiling point component increasing modes are operated when indoor air state deviates from the accuracy standard. Temperature glide regions of non-isothermal cooling sources change with the concentration of zeotropic mixture, which conforms to cascade utilization for moisture and heat load removal. The cooling and dehumidifying capacity of the chiller is regulated correspondingly. The models of evaporation temperature glide, affordable ε, cooling and dehumidification efficiency are established. The effects on the affordable ε are analyzed with the changing outdoor meteorological parameters and indoor personnel fluctuation. The relationship between mass concentration of working fluid and sliding temperature regions is revealed. The affordable ε varies from 3500 to 4700 kJ/kg, which illustrates that the CATHICS can totally afford changing heat and humidity load. The cooling and dehumidification efficiency are approximately 3.2 and 1.2. The vapor quality of the working fluid from the condenser is analyzed. The highly-integrated CATHICS is suitable for realizing individualized thermal comfort in residential buildings. Heat and humidity ratio Zeotropic mixture Temperature glide Mass concentration Thermal comfort Yin, Yonggao verfasserin aut Enthalten in Sustainable cities and society Amsterdam [u.a.] : Elsevier, 2011 76 Online-Ressource (DE-627)635602792 (DE-600)2573417-9 (DE-576)336956703 nnns volume:76 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 AR 76 |
allfieldsGer |
10.1016/j.scs.2021.103453 doi (DE-627)ELV007064152 (ELSEVIER)S2210-6707(21)00726-5 DE-627 ger DE-627 rda eng 690 720 DE-600 Zhu, Yutong verfasserin aut Performance of a novel climate-adaptive temperature and humidity independent control system based on zeotropic mixture R32/R236fa 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A climate-adaptive temperature and humidity independent control system (CATHICS) is proposed, of which heat and humidity ratio (ε) is adjustable to afford the changing indoor heat and humidity load. Zeotropic mixture R32/R236fa is employed due to its characteristic of temperature glide during phase change. A module for composition regulation is incorporated based on boiling point difference of zeotropic mixture. High/low boiling point component increasing modes are operated when indoor air state deviates from the accuracy standard. Temperature glide regions of non-isothermal cooling sources change with the concentration of zeotropic mixture, which conforms to cascade utilization for moisture and heat load removal. The cooling and dehumidifying capacity of the chiller is regulated correspondingly. The models of evaporation temperature glide, affordable ε, cooling and dehumidification efficiency are established. The effects on the affordable ε are analyzed with the changing outdoor meteorological parameters and indoor personnel fluctuation. The relationship between mass concentration of working fluid and sliding temperature regions is revealed. The affordable ε varies from 3500 to 4700 kJ/kg, which illustrates that the CATHICS can totally afford changing heat and humidity load. The cooling and dehumidification efficiency are approximately 3.2 and 1.2. The vapor quality of the working fluid from the condenser is analyzed. The highly-integrated CATHICS is suitable for realizing individualized thermal comfort in residential buildings. Heat and humidity ratio Zeotropic mixture Temperature glide Mass concentration Thermal comfort Yin, Yonggao verfasserin aut Enthalten in Sustainable cities and society Amsterdam [u.a.] : Elsevier, 2011 76 Online-Ressource (DE-627)635602792 (DE-600)2573417-9 (DE-576)336956703 nnns volume:76 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 AR 76 |
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10.1016/j.scs.2021.103453 doi (DE-627)ELV007064152 (ELSEVIER)S2210-6707(21)00726-5 DE-627 ger DE-627 rda eng 690 720 DE-600 Zhu, Yutong verfasserin aut Performance of a novel climate-adaptive temperature and humidity independent control system based on zeotropic mixture R32/R236fa 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A climate-adaptive temperature and humidity independent control system (CATHICS) is proposed, of which heat and humidity ratio (ε) is adjustable to afford the changing indoor heat and humidity load. Zeotropic mixture R32/R236fa is employed due to its characteristic of temperature glide during phase change. A module for composition regulation is incorporated based on boiling point difference of zeotropic mixture. High/low boiling point component increasing modes are operated when indoor air state deviates from the accuracy standard. Temperature glide regions of non-isothermal cooling sources change with the concentration of zeotropic mixture, which conforms to cascade utilization for moisture and heat load removal. The cooling and dehumidifying capacity of the chiller is regulated correspondingly. The models of evaporation temperature glide, affordable ε, cooling and dehumidification efficiency are established. The effects on the affordable ε are analyzed with the changing outdoor meteorological parameters and indoor personnel fluctuation. The relationship between mass concentration of working fluid and sliding temperature regions is revealed. The affordable ε varies from 3500 to 4700 kJ/kg, which illustrates that the CATHICS can totally afford changing heat and humidity load. The cooling and dehumidification efficiency are approximately 3.2 and 1.2. The vapor quality of the working fluid from the condenser is analyzed. The highly-integrated CATHICS is suitable for realizing individualized thermal comfort in residential buildings. Heat and humidity ratio Zeotropic mixture Temperature glide Mass concentration Thermal comfort Yin, Yonggao verfasserin aut Enthalten in Sustainable cities and society Amsterdam [u.a.] : Elsevier, 2011 76 Online-Ressource (DE-627)635602792 (DE-600)2573417-9 (DE-576)336956703 nnns volume:76 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 AR 76 |
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10.1016/j.scs.2021.103453 |
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title_sort |
performance of a novel climate-adaptive temperature and humidity independent control system based on zeotropic mixture r32/r236fa |
title_auth |
Performance of a novel climate-adaptive temperature and humidity independent control system based on zeotropic mixture R32/R236fa |
abstract |
A climate-adaptive temperature and humidity independent control system (CATHICS) is proposed, of which heat and humidity ratio (ε) is adjustable to afford the changing indoor heat and humidity load. Zeotropic mixture R32/R236fa is employed due to its characteristic of temperature glide during phase change. A module for composition regulation is incorporated based on boiling point difference of zeotropic mixture. High/low boiling point component increasing modes are operated when indoor air state deviates from the accuracy standard. Temperature glide regions of non-isothermal cooling sources change with the concentration of zeotropic mixture, which conforms to cascade utilization for moisture and heat load removal. The cooling and dehumidifying capacity of the chiller is regulated correspondingly. The models of evaporation temperature glide, affordable ε, cooling and dehumidification efficiency are established. The effects on the affordable ε are analyzed with the changing outdoor meteorological parameters and indoor personnel fluctuation. The relationship between mass concentration of working fluid and sliding temperature regions is revealed. The affordable ε varies from 3500 to 4700 kJ/kg, which illustrates that the CATHICS can totally afford changing heat and humidity load. The cooling and dehumidification efficiency are approximately 3.2 and 1.2. The vapor quality of the working fluid from the condenser is analyzed. The highly-integrated CATHICS is suitable for realizing individualized thermal comfort in residential buildings. |
abstractGer |
A climate-adaptive temperature and humidity independent control system (CATHICS) is proposed, of which heat and humidity ratio (ε) is adjustable to afford the changing indoor heat and humidity load. Zeotropic mixture R32/R236fa is employed due to its characteristic of temperature glide during phase change. A module for composition regulation is incorporated based on boiling point difference of zeotropic mixture. High/low boiling point component increasing modes are operated when indoor air state deviates from the accuracy standard. Temperature glide regions of non-isothermal cooling sources change with the concentration of zeotropic mixture, which conforms to cascade utilization for moisture and heat load removal. The cooling and dehumidifying capacity of the chiller is regulated correspondingly. The models of evaporation temperature glide, affordable ε, cooling and dehumidification efficiency are established. The effects on the affordable ε are analyzed with the changing outdoor meteorological parameters and indoor personnel fluctuation. The relationship between mass concentration of working fluid and sliding temperature regions is revealed. The affordable ε varies from 3500 to 4700 kJ/kg, which illustrates that the CATHICS can totally afford changing heat and humidity load. The cooling and dehumidification efficiency are approximately 3.2 and 1.2. The vapor quality of the working fluid from the condenser is analyzed. The highly-integrated CATHICS is suitable for realizing individualized thermal comfort in residential buildings. |
abstract_unstemmed |
A climate-adaptive temperature and humidity independent control system (CATHICS) is proposed, of which heat and humidity ratio (ε) is adjustable to afford the changing indoor heat and humidity load. Zeotropic mixture R32/R236fa is employed due to its characteristic of temperature glide during phase change. A module for composition regulation is incorporated based on boiling point difference of zeotropic mixture. High/low boiling point component increasing modes are operated when indoor air state deviates from the accuracy standard. Temperature glide regions of non-isothermal cooling sources change with the concentration of zeotropic mixture, which conforms to cascade utilization for moisture and heat load removal. The cooling and dehumidifying capacity of the chiller is regulated correspondingly. The models of evaporation temperature glide, affordable ε, cooling and dehumidification efficiency are established. The effects on the affordable ε are analyzed with the changing outdoor meteorological parameters and indoor personnel fluctuation. The relationship between mass concentration of working fluid and sliding temperature regions is revealed. The affordable ε varies from 3500 to 4700 kJ/kg, which illustrates that the CATHICS can totally afford changing heat and humidity load. The cooling and dehumidification efficiency are approximately 3.2 and 1.2. The vapor quality of the working fluid from the condenser is analyzed. The highly-integrated CATHICS is suitable for realizing individualized thermal comfort in residential buildings. |
collection_details |
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title_short |
Performance of a novel climate-adaptive temperature and humidity independent control system based on zeotropic mixture R32/R236fa |
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author2 |
Yin, Yonggao |
author2Str |
Yin, Yonggao |
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doi_str |
10.1016/j.scs.2021.103453 |
up_date |
2024-07-06T23:29:45.085Z |
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