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Conversion of a Direct to an Indirect Refrigeration System at Medium Temperature Using R-134a and R-507A: An Energy Impact Analysis
dc.contributor.author | Llopis, Rodrigo | |
dc.contributor.author | Sánchez García-Vacas, Daniel | |
dc.contributor.author | Cabello López, Ramón | |
dc.contributor.author | Catalán-Gil, Jesús | |
dc.contributor.author | Nebot-Andres, Laura | |
dc.date.accessioned | 2018-05-30T11:00:20Z | |
dc.date.available | 2018-05-30T11:00:20Z | |
dc.date.issued | 2018-02-06 | |
dc.identifier.citation | LLOPIS, Rodrigo, et al. Conversion of a Direct to an Indirect Refrigeration System at Medium Temperature Using R-134a and R-507A: An Energy Impact Analysis. Applied Sciences, 2018, vol. 8, no 2, p. 247 | ca_CA |
dc.identifier.issn | 2076-3417 | |
dc.identifier.uri | http://hdl.handle.net/10234/174871 | |
dc.description.abstract | This work presents the experimental evaluation of energy consumption and refrigerant charge reduction when a commercial direct expansion refrigeration system is converted into an indirect system. The evaluation (with R-134a and R-507A) used a commercial cabinet with doors for medium temperature and a single-stage refrigeration cycle using a semi-hermetic compressor and electronic expansion valve; 24-h energy consumption tests were performed at laboratory conditions for each refrigerant and configuration at three heat rejection levels (23.3, 32.8 and 43.6 °C), maintaining an average product temperature inside the cabinet of 2 °C. The work analyses the impact of the conversion on temperature and pressure indicators, as well as, in the energy performance of each element. For R-134a the refrigerant charge was reduced in a 42.9%, but the energy consumption rose by 22.0%–22.8%; for R-507A the charge reduction was of 32.8% with an increase in energy consumption of between 27.7% and 38.7%. | ca_CA |
dc.format.extent | 17 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | MDPI | ca_CA |
dc.relation.isPartOf | Applied Sciences, 2018, vol. 8, no 2 | ca_CA |
dc.rights | Atribución 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-sa/4.0/ | * |
dc.subject | R-134a | ca_CA |
dc.subject | R-507A | ca_CA |
dc.subject | indirect system | ca_CA |
dc.subject | commercial refrigeration | ca_CA |
dc.subject | energy analysis | ca_CA |
dc.title | Conversion of a Direct to an Indirect Refrigeration System at Medium Temperature Using R-134a and R-507A: An Energy Impact Analysis | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.3390/app8020247 | |
dc.relation.projectID | Ministerio de Economia y Competitividad of Spain: ENE2014-53760-R.7, FPI BES-2015-073612; Jaume I University of Spain: P11B2015-66; Generalitat Valenciana of Spain: ACIF/2017/194 | ca_CA |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | http://www.mdpi.com/2076-3417/8/2/247/html | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion | ca_CA |
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