Experimental mapping of the thermodynamic losses in vapor compression refrigeration systems
The present study introduces a methodology for mapping the thermodynamic losses of vapor compression refrigeration systems which consists of a theoretical model that splits the coefficient of performance into four terms: (i) the coefficient of performance of an ideal cycle (Carnot), (ii) the efficiency of a real cycle running with an ideal compressor, (iii) the compression efficiency of a real compressor, and (iv) the cycling efficiency. In addition, measurements of the relevant variables at several positions along the refrigeration loop are also required, generating performance data not only for the whole unit but also for each one of the system components. The proposed methodology points out the thermodynamic losses of the refrigeration system, identifying opportunities for energy performance improvement. In addition, the methodology is suitable for comparing different refrigeration systems with respect to the same thermodynamic baseline. Albeit the methodology was originally developed for household refrigerators, it can be easily extended to any kind of vapor-compression refrigeration systems.
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Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM
2011
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oai:scielo:S1678-587820110002000062011-08-31Experimental mapping of the thermodynamic losses in vapor compression refrigeration systemsGonçalves,Joaquim M.Melo,CláudioHermes,Christian J. L.Barbosa Jr.,Jader R. vapor compression refrigeration experimental analysis thermodynamic losses energy consumption The present study introduces a methodology for mapping the thermodynamic losses of vapor compression refrigeration systems which consists of a theoretical model that splits the coefficient of performance into four terms: (i) the coefficient of performance of an ideal cycle (Carnot), (ii) the efficiency of a real cycle running with an ideal compressor, (iii) the compression efficiency of a real compressor, and (iv) the cycling efficiency. In addition, measurements of the relevant variables at several positions along the refrigeration loop are also required, generating performance data not only for the whole unit but also for each one of the system components. The proposed methodology points out the thermodynamic losses of the refrigeration system, identifying opportunities for energy performance improvement. In addition, the methodology is suitable for comparing different refrigeration systems with respect to the same thermodynamic baseline. Albeit the methodology was originally developed for household refrigerators, it can be easily extended to any kind of vapor-compression refrigeration systems.info:eu-repo/semantics/openAccessAssociação Brasileira de Engenharia e Ciências Mecânicas - ABCMJournal of the Brazilian Society of Mechanical Sciences and Engineering v.33 n.2 20112011-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782011000200006en10.1590/S1678-58782011000200006 |
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Gonçalves,Joaquim M. Melo,Cláudio Hermes,Christian J. L. Barbosa Jr.,Jader R. |
| spellingShingle |
Gonçalves,Joaquim M. Melo,Cláudio Hermes,Christian J. L. Barbosa Jr.,Jader R. Experimental mapping of the thermodynamic losses in vapor compression refrigeration systems |
| author_facet |
Gonçalves,Joaquim M. Melo,Cláudio Hermes,Christian J. L. Barbosa Jr.,Jader R. |
| author_sort |
Gonçalves,Joaquim M. |
| title |
Experimental mapping of the thermodynamic losses in vapor compression refrigeration systems |
| title_short |
Experimental mapping of the thermodynamic losses in vapor compression refrigeration systems |
| title_full |
Experimental mapping of the thermodynamic losses in vapor compression refrigeration systems |
| title_fullStr |
Experimental mapping of the thermodynamic losses in vapor compression refrigeration systems |
| title_full_unstemmed |
Experimental mapping of the thermodynamic losses in vapor compression refrigeration systems |
| title_sort |
experimental mapping of the thermodynamic losses in vapor compression refrigeration systems |
| description |
The present study introduces a methodology for mapping the thermodynamic losses of vapor compression refrigeration systems which consists of a theoretical model that splits the coefficient of performance into four terms: (i) the coefficient of performance of an ideal cycle (Carnot), (ii) the efficiency of a real cycle running with an ideal compressor, (iii) the compression efficiency of a real compressor, and (iv) the cycling efficiency. In addition, measurements of the relevant variables at several positions along the refrigeration loop are also required, generating performance data not only for the whole unit but also for each one of the system components. The proposed methodology points out the thermodynamic losses of the refrigeration system, identifying opportunities for energy performance improvement. In addition, the methodology is suitable for comparing different refrigeration systems with respect to the same thermodynamic baseline. Albeit the methodology was originally developed for household refrigerators, it can be easily extended to any kind of vapor-compression refrigeration systems. |
| publisher |
Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM |
| publishDate |
2011 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782011000200006 |
| work_keys_str_mv |
AT goncalvesjoaquimm experimentalmappingofthethermodynamiclossesinvaporcompressionrefrigerationsystems AT meloclaudio experimentalmappingofthethermodynamiclossesinvaporcompressionrefrigerationsystems AT hermeschristianjl experimentalmappingofthethermodynamiclossesinvaporcompressionrefrigerationsystems AT barbosajrjaderr experimentalmappingofthethermodynamiclossesinvaporcompressionrefrigerationsystems |
| _version_ |
1756428574096621568 |