Investigation of performance improvement of a household freezer by using natural circulation loop

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dc.contributor.authorcobanoglu, Nur
dc.contributor.authorKoca, Halil Dogacan
dc.contributor.authorGenc, Alper Mete
dc.contributor.authorKaradeniz, Ziya Haktan
dc.contributor.authorEkren, Orhan
dc.date.accessioned2020-12-01T11:58:36Z
dc.date.available2020-12-01T11:58:36Z
dc.date.issued2020
dc.departmentEge Üniversitesien_US
dc.description.abstractGrowing number of household refrigerators and freezers also increase the overall energy consumption and number of household refrigerators have grown nearly 3% per year. on the other hand, investigations showed that household refrigerators have a significant technical energy saving potential of up to 30-40%. in this study, a single-phase natural circulation loop is considered as a suction line heat exchanger between the high and low pressure sides of conventional refrigeration cycle of a household chest freezer. the potential heat transfer by the single-phase natural circulation loop is studied by a CFD analysis, considering the possible temperature range for refrigeration cycle and geometrical parameters that affect the loop performance. the performance map of this refrigeration cycle is presented for different compressor suction and discharge pressures (LP/HP), discharge temperatures (T-2) and different compressor speeds. the results indicate that the highest amount of heat transfer is obtained for the single-phase natural circulation loop with aspect ratio of 0.8 and pipe diameter of 6.53 mm. Moreover, the single-phase natural circulation loop provides 11.5% efficiency improvement for the household freezer for maximum compressor speed at lowest T(2)and LP/HP. Considering reduction in required compressor work, SPNCmL assisted refrigeration system has a wider operating range.en_US
dc.description.sponsorshipScientific and Technological Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [5180042]en_US
dc.description.sponsorshipThis research was supported by the Scientific and Technological Research Council of Turkey under grant number: 5180042.en_US
dc.identifier.doi10.1080/23744731.2020.1798710
dc.identifier.issn2374-4731
dc.identifier.issn2374-474X
dc.identifier.issn2374-4731en_US
dc.identifier.issn2374-474Xen_US
dc.identifier.scopus2-s2.0-85089252438en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1080/23744731.2020.1798710
dc.identifier.urihttps://hdl.handle.net/11454/62065
dc.identifier.wosWOS:000558006500001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTaylor & Francis Incen_US
dc.relation.ispartofScience and Technology For the Built Environmenten_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleInvestigation of performance improvement of a household freezer by using natural circulation loopen_US
dc.typeArticleen_US

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