Comparative study of transcritical vapor compression configurations using CO2 as refrigeration mode base on simulation
Despite of the excellent efficiency of the CO2 transcritical cycle in heat pump mode, there is a loss of efficiency in refrigeration mode compared with the subcritical vapor compression cycle with HFC refrigerants. This reason has lead several researches to propose ways to improve the transcritical...
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| Veröffentlicht in: | Applied thermal engineering 2013-03, Vol.51 (1-2), p.1038-1046 |
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| creator | Pérez-García, V. Belman-Flores, J.M. Navarro-Esbrí, J. Rubio-Maya, C. |
| description | Despite of the excellent efficiency of the CO2 transcritical cycle in heat pump mode, there is a loss of efficiency in refrigeration mode compared with the subcritical vapor compression cycle with HFC refrigerants. This reason has lead several researches to propose ways to improve the transcritical cycle performance using CO2 as refrigerant in refrigeration mode, mainly associated to cycle configurations changes. In this paper, a comparative study and energetic simulation of most common configurations for transcritical single stage cycle using CO2 as refrigerant has been carried out. In order to make the comparison, a cycle components modelization has been proposed and the simulation results are used to find the optimum configuration for a single stage vapor compression transcritical system.
► A comparative study and energetic simulation of most common configurations for transcritical single stage cycle using CO2. ► The characterization of each of the configurations has been done under steady state conditions. ► In DEC configuration, the superheating helps the COP to increase around of 4.5% in the firsts 1.8 °C approximately. ► The configuration resulting to be the most efficient is the one which uses a turbine as an expansion device. ► Superheating degree in DEC and DEC + IHE configurations is beneficial in both cases. |
| doi_str_mv | 10.1016/j.applthermaleng.2012.10.018 |
| format | Article |
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► A comparative study and energetic simulation of most common configurations for transcritical single stage cycle using CO2. ► The characterization of each of the configurations has been done under steady state conditions. ► In DEC configuration, the superheating helps the COP to increase around of 4.5% in the firsts 1.8 °C approximately. ► The configuration resulting to be the most efficient is the one which uses a turbine as an expansion device. ► Superheating degree in DEC and DEC + IHE configurations is beneficial in both cases.</description><identifier>ISSN: 1359-4311</identifier><identifier>DOI: 10.1016/j.applthermaleng.2012.10.018</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Carbon dioxide ; CO2 ; Compressing ; Computer simulation ; COP ; Energy ; Energy. Thermal use of fuels ; Exact sciences and technology ; Optimization ; Refrigerants ; Refrigerating engineering ; Refrigerating engineering. Cryogenics. Food conservation ; Refrigeration ; Simulation ; Single stage ; Techniques. Materials ; Transcritical system</subject><ispartof>Applied thermal engineering, 2013-03, Vol.51 (1-2), p.1038-1046</ispartof><rights>2012 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c393t-8f04e7146c84371272e604138acee8231b081aa8d7b3d365c1d2c728a34dae5c3</citedby><cites>FETCH-LOGICAL-c393t-8f04e7146c84371272e604138acee8231b081aa8d7b3d365c1d2c728a34dae5c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.applthermaleng.2012.10.018$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27043235$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Pérez-García, V.</creatorcontrib><creatorcontrib>Belman-Flores, J.M.</creatorcontrib><creatorcontrib>Navarro-Esbrí, J.</creatorcontrib><creatorcontrib>Rubio-Maya, C.</creatorcontrib><title>Comparative study of transcritical vapor compression configurations using CO2 as refrigeration mode base on simulation</title><title>Applied thermal engineering</title><description>Despite of the excellent efficiency of the CO2 transcritical cycle in heat pump mode, there is a loss of efficiency in refrigeration mode compared with the subcritical vapor compression cycle with HFC refrigerants. This reason has lead several researches to propose ways to improve the transcritical cycle performance using CO2 as refrigerant in refrigeration mode, mainly associated to cycle configurations changes. In this paper, a comparative study and energetic simulation of most common configurations for transcritical single stage cycle using CO2 as refrigerant has been carried out. In order to make the comparison, a cycle components modelization has been proposed and the simulation results are used to find the optimum configuration for a single stage vapor compression transcritical system.
► A comparative study and energetic simulation of most common configurations for transcritical single stage cycle using CO2. ► The characterization of each of the configurations has been done under steady state conditions. ► In DEC configuration, the superheating helps the COP to increase around of 4.5% in the firsts 1.8 °C approximately. ► The configuration resulting to be the most efficient is the one which uses a turbine as an expansion device. ► Superheating degree in DEC and DEC + IHE configurations is beneficial in both cases.</description><subject>Applied sciences</subject><subject>Carbon dioxide</subject><subject>CO2</subject><subject>Compressing</subject><subject>Computer simulation</subject><subject>COP</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Exact sciences and technology</subject><subject>Optimization</subject><subject>Refrigerants</subject><subject>Refrigerating engineering</subject><subject>Refrigerating engineering. Cryogenics. Food conservation</subject><subject>Refrigeration</subject><subject>Simulation</subject><subject>Single stage</subject><subject>Techniques. 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Thermal use of fuels</topic><topic>Exact sciences and technology</topic><topic>Optimization</topic><topic>Refrigerants</topic><topic>Refrigerating engineering</topic><topic>Refrigerating engineering. Cryogenics. Food conservation</topic><topic>Refrigeration</topic><topic>Simulation</topic><topic>Single stage</topic><topic>Techniques. Materials</topic><topic>Transcritical system</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pérez-García, V.</creatorcontrib><creatorcontrib>Belman-Flores, J.M.</creatorcontrib><creatorcontrib>Navarro-Esbrí, J.</creatorcontrib><creatorcontrib>Rubio-Maya, C.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Applied thermal engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pérez-García, V.</au><au>Belman-Flores, J.M.</au><au>Navarro-Esbrí, J.</au><au>Rubio-Maya, C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparative study of transcritical vapor compression configurations using CO2 as refrigeration mode base on simulation</atitle><jtitle>Applied thermal engineering</jtitle><date>2013-03-01</date><risdate>2013</risdate><volume>51</volume><issue>1-2</issue><spage>1038</spage><epage>1046</epage><pages>1038-1046</pages><issn>1359-4311</issn><abstract>Despite of the excellent efficiency of the CO2 transcritical cycle in heat pump mode, there is a loss of efficiency in refrigeration mode compared with the subcritical vapor compression cycle with HFC refrigerants. This reason has lead several researches to propose ways to improve the transcritical cycle performance using CO2 as refrigerant in refrigeration mode, mainly associated to cycle configurations changes. In this paper, a comparative study and energetic simulation of most common configurations for transcritical single stage cycle using CO2 as refrigerant has been carried out. In order to make the comparison, a cycle components modelization has been proposed and the simulation results are used to find the optimum configuration for a single stage vapor compression transcritical system.
► A comparative study and energetic simulation of most common configurations for transcritical single stage cycle using CO2. ► The characterization of each of the configurations has been done under steady state conditions. ► In DEC configuration, the superheating helps the COP to increase around of 4.5% in the firsts 1.8 °C approximately. ► The configuration resulting to be the most efficient is the one which uses a turbine as an expansion device. ► Superheating degree in DEC and DEC + IHE configurations is beneficial in both cases.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.applthermaleng.2012.10.018</doi><tpages>9</tpages></addata></record> |
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| ispartof | Applied thermal engineering, 2013-03, Vol.51 (1-2), p.1038-1046 |
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| subjects | Applied sciences Carbon dioxide CO2 Compressing Computer simulation COP Energy Energy. Thermal use of fuels Exact sciences and technology Optimization Refrigerants Refrigerating engineering Refrigerating engineering. Cryogenics. Food conservation Refrigeration Simulation Single stage Techniques. Materials Transcritical system |
| title | Comparative study of transcritical vapor compression configurations using CO2 as refrigeration mode base on simulation |
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