Performance investigation of a vapor compression refrigeration system with and without heat exchanger using mono and hybrid nanofluids and operated with R1234yf

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dc.contributor.authorSarioğlu, Kemal
dc.contributor.authorYıldız, Gökhan
dc.date.accessioned2025-03-24T19:47:27Z
dc.date.available2025-03-24T19:47:27Z
dc.date.issued2025
dc.departmentDüzce Üniversitesi
dc.description.abstractIn recent years, the need for energy in the world has been increasing. Approximately one third of the world’s energy consumption is carried out by buildings. Most of this rate is due to heating, cooling and air conditioning systems. Therefore, improvements in these systems will provide major energy savings on a global scale. Compressors are the components that consume the most energy in heating, cooling and air conditioning systems. Reducing the energy consumption of compressors is of great importance. The thermodynamic and environmental performances of mono and hybrid nanolubricants acquired from different nanoparticles (TiO2 and B) used at different concentrations (0.5 wt% and 1 wt%) in vapor compression refrigeration systems (VCRS) with and without heat exchanger (HEX) were investigated in this study. Because of the experiments, the COP enhanced by 10.46% in the 1 wt% TiO2-B hybrid nanolubricant in the experimental system with HEX. Compared to POE, exergy efficiency improved by 23.36% in the experimental system without HEX with 1 wt% TiO2-B hybrid nanolubricant and by 28.48% in the experimental system with HEX with 1 wt% TiO2-B hybrid nanolubricant. In the energy consumption of the compressor, a decrease of 7.94% was obtained with 1 wt% TiO2-B hybrid nanolubricant in the experimental system without HEX and a decrease of 8.06% was obtained with 1 wt% TiO2-B hybrid nanolubricant in the experimental system with HEX compared to POE. Compared to POE, 7.92% improvement in total exergy destruction was found in the 1 wt% TiO2-B hybrid nanolubricant in the experimental system without HEX and 8.72% improvement was found in the 1 wt% TiO2-B hybrid nanolubricant in the experimental system with HEX. The enviroeconomic value of 1 wt% TiO2-B hybrid nanolubricants gave better results than POE and mono nanolubricant. Consequently, the hybrid nanolubricant used in the VCRS with HEX showed better thermodynamic and environmental performance than POE and mono nanolubricants.
dc.identifier.doi10.29109/gujsc.1578067
dc.identifier.endpage186
dc.identifier.issn2147-9526
dc.identifier.issue1
dc.identifier.startpage169
dc.identifier.urihttps://doi.org/10.29109/gujsc.1578067
dc.identifier.urihttps://hdl.handle.net/20.500.12684/18751
dc.identifier.volume13
dc.language.isoen
dc.publisherGazi Üniversitesi
dc.relation.ispartofGazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_DergiPark_20250324
dc.subjectVapor compression refrigeration system|Hybrid nanolubricant|Thermodynamic analysis|Environmental analysis.
dc.titlePerformance investigation of a vapor compression refrigeration system with and without heat exchanger using mono and hybrid nanofluids and operated with R1234yf
dc.typeArticle

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