COMPARATIVE ANALYSIS OF ELECTRIC ENERGY CONSUMPTION OF CASCADE SYSTEM R134a/CO2 WITH SINGLE-STAGE R404A AND TWO-STAGE CO2 INSTALLATION
Апстракт
The paper analyzes the electric energy consumption of three different refrigeration installations: cascade refrigeration system with R134a in the high-temperature circuit and CO2 in the low-temperature circuit, single-stage refrigeration system operating with R404A, and two-stage transcritical CO2 system. The indirect impact of the refrigeration system on global warming through electric energy consumption was examined.
Thermodynamic cycles of these installations have been described and models have been developed to analyze the electric energy consumption required to drive the compressor as the largest consumer, for the cooling capacity of the evaporator 5,7 kW at evaporation temperature -30 °C for meteorological 2017, in the city of Belgrade. As a basis for comparative analysis, the existing cascade refrigeration system, which is located in the Laboratory for Thermal Science at the Faculty of Mechanical Engineering in Belgrade, was selected.
Кључне речи:
cascade refrigeration system / CO2 / R404A / GWP / electric energy consumptionИзвор:
Zbornik 50. Međunarodnog kongresa o KGH, 2020Издавач:
- Beograd: SMEITS
Финансирање / пројекти:
- Интелигентни системи управљања климатизације у циљу постизања енергетски ефикасних режима у сложеним условима експлоатације (RS-MESTD-Technological Development (TD or TR)-33047)
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Ninković, Dimitrije AU - Milovančević, Uroš AU - Otović, Milena AU - Černicin, Vladimir PY - 2020 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5052 AB - The paper analyzes the electric energy consumption of three different refrigeration installations: cascade refrigeration system with R134a in the high-temperature circuit and CO2 in the low-temperature circuit, single-stage refrigeration system operating with R404A, and two-stage transcritical CO2 system. The indirect impact of the refrigeration system on global warming through electric energy consumption was examined. Thermodynamic cycles of these installations have been described and models have been developed to analyze the electric energy consumption required to drive the compressor as the largest consumer, for the cooling capacity of the evaporator 5,7 kW at evaporation temperature -30 °C for meteorological 2017, in the city of Belgrade. As a basis for comparative analysis, the existing cascade refrigeration system, which is located in the Laboratory for Thermal Science at the Faculty of Mechanical Engineering in Belgrade, was selected. PB - Beograd: SMEITS C3 - Zbornik 50. Međunarodnog kongresa o KGH T1 - COMPARATIVE ANALYSIS OF ELECTRIC ENERGY CONSUMPTION OF CASCADE SYSTEM R134a/CO2 WITH SINGLE-STAGE R404A AND TWO-STAGE CO2 INSTALLATION UR - https://hdl.handle.net/21.15107/rcub_machinery_5052 ER -
@conference{ author = "Ninković, Dimitrije and Milovančević, Uroš and Otović, Milena and Černicin, Vladimir", year = "2020", abstract = "The paper analyzes the electric energy consumption of three different refrigeration installations: cascade refrigeration system with R134a in the high-temperature circuit and CO2 in the low-temperature circuit, single-stage refrigeration system operating with R404A, and two-stage transcritical CO2 system. The indirect impact of the refrigeration system on global warming through electric energy consumption was examined. Thermodynamic cycles of these installations have been described and models have been developed to analyze the electric energy consumption required to drive the compressor as the largest consumer, for the cooling capacity of the evaporator 5,7 kW at evaporation temperature -30 °C for meteorological 2017, in the city of Belgrade. As a basis for comparative analysis, the existing cascade refrigeration system, which is located in the Laboratory for Thermal Science at the Faculty of Mechanical Engineering in Belgrade, was selected.", publisher = "Beograd: SMEITS", journal = "Zbornik 50. Međunarodnog kongresa o KGH", title = "COMPARATIVE ANALYSIS OF ELECTRIC ENERGY CONSUMPTION OF CASCADE SYSTEM R134a/CO2 WITH SINGLE-STAGE R404A AND TWO-STAGE CO2 INSTALLATION", url = "https://hdl.handle.net/21.15107/rcub_machinery_5052" }
Ninković, D., Milovančević, U., Otović, M.,& Černicin, V.. (2020). COMPARATIVE ANALYSIS OF ELECTRIC ENERGY CONSUMPTION OF CASCADE SYSTEM R134a/CO2 WITH SINGLE-STAGE R404A AND TWO-STAGE CO2 INSTALLATION. in Zbornik 50. Međunarodnog kongresa o KGH Beograd: SMEITS.. https://hdl.handle.net/21.15107/rcub_machinery_5052
Ninković D, Milovančević U, Otović M, Černicin V. COMPARATIVE ANALYSIS OF ELECTRIC ENERGY CONSUMPTION OF CASCADE SYSTEM R134a/CO2 WITH SINGLE-STAGE R404A AND TWO-STAGE CO2 INSTALLATION. in Zbornik 50. Međunarodnog kongresa o KGH. 2020;. https://hdl.handle.net/21.15107/rcub_machinery_5052 .
Ninković, Dimitrije, Milovančević, Uroš, Otović, Milena, Černicin, Vladimir, "COMPARATIVE ANALYSIS OF ELECTRIC ENERGY CONSUMPTION OF CASCADE SYSTEM R134a/CO2 WITH SINGLE-STAGE R404A AND TWO-STAGE CO2 INSTALLATION" in Zbornik 50. Međunarodnog kongresa o KGH (2020), https://hdl.handle.net/21.15107/rcub_machinery_5052 .