Visible signs of climate change call for urgent actions on food retail industry, since such a
sector is characterized by an abundant carbon footprint. Being CO 2 (or R744) recognized …

CO 2 subcooling has resulted a method to upgrade the performance of CO 2 refrigeration
plants in the recent years, with overall improvements up to 12% with internal heat …

Mechanical subcooling systems, both dedicated and integrated, have attracted lot of
attention in the recent years due to their great potential to improve transcritical CO 2 …

To meet the simultaneous needs of high temperature disinfection and freezing in the field of
food processing, a new concept of combined heating and cooling transcritical CO 2 system …

This paper proposes a NH 3/CO 2 cascade refrigeration system that sets an auxiliary
refrigeration loop in the high-temperature cycle to increase the subcooling degree in the low …

Subcooling methods for transcritical CO 2 plants are being studied in order to improve their
behavior. Among them, the Integrated Mechanical Subcooling system is one of the most …

Transcritical CO 2 heat pumps have found worldwide applied because of the environmental
friendliness and other thermodynamic advantages, however, the inefficiency of the CO 2 …

The objective of this work is the comparison of the different cascade refrigeration systems
with CO2 in the low-temperature circuit. A total of 18 different cascade refrigeration systems …

Energy improvements offered by dedicated and integrated mechanical subcooling systems
in CO 2 booster systems for supermarket applications are analyzed here through the use of …

This work presents an experimental analysis of the energy and environmental performance
of low-GWP refrigerants R513A, R1234yf and R436A as alternatives for R134a in a cascade …