Visualitza EMC_Articles per autoria "0ecd0d58-8223-480b-9e15-de30f96bccf0"
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Effects caused by the internal heat exchanger at the low temperature cycle in a cascade refrigeration plant
Llopis, Rodrigo; Sanz Kock, Carlos; Cabello López, Ramón; Sánchez García-Vacas, Daniel; Nebot-Andres, Laura; Catalán-Gil, Jesús Elsevier (2016)This work analyses and quantifies the effects caused by the use of an internal heat exchanger (IHX) at the CO2 subcritical cycle in an HFC134a/CO2 cascade refrigeration plant that incorporates a gas-cooler at the exit ... -
Energetic evaluation of a CO2 refrigeration plant working in supercritical and subcritical conditions
Sánchez García-Vacas, Daniel; Patiño Pérez, Jorge; Sanz Kock, Carlos; Llopis, Rodrigo; Cabello López, Ramón; Torrella Alcaraz, Enrique Elsevier (2014-05)Unlike other refrigerants, R744 (or carbon dioxide) has a very low critical temperature (30.98 °C) which hampers working in subcritical conditions especially when the environment is used as a heat rejection sink. Accordingly, ... -
Energy and environmental comparison of two-stage solutions for commercial refrigeration at low temperature: Fluids and systems
Llopis, Rodrigo; Sánchez García-Vacas, Daniel; Sanz Kock, Carlos; Cabello López, Ramón; Torrella Alcaraz, Enrique Elsevier (2015-01-15)International agreements will restrict in the near future the use of high-GWP refrigerants in Europe. These restrictions will favour the implantation of refrigeration systems with low-GWP fluids, especially in applications ... -
Experimental evaluation of a R134a/CO2 cascade refrigeration plant
Sanz Kock, Carlos; Llopis, Rodrigo; Sánchez García-Vacas, Daniel; Cabello López, Ramón; Torrella Alcaraz, Enrique Elsevier (2014)We present the experimental evaluation of a R134a/CO2 cascade refrigeration plant designed for low evaporation temperature in commercial refrigeration applications. The test bench incorporates two single- stage vapour ... -
Experimental evaluation of an Internal Heat Exchanger in a CO2 subcritical refrigeration cycle with gas-cooler
Llopis, Rodrigo; Sanz Kock, Carlos; Cabello López, Ramón; Sánchez García-Vacas, Daniel; Torrella Alcaraz, Enrique Elsevier (2015-04-05)We present the experimental evaluation of an internal heat exchanger or suction-line/liquid-line heat exchanger in a CO2 subcritical refrigeration plant with gas-cooler. The plant, driven by a 1.5kW CO2 semi hermetic ...