The adoption of the EU F-Gas Regulation 517/2014 and the resulting development of the
multi-ejector concept have led carbon dioxide to take center stage as the sole refrigerant …

The adoption of highly efficient vapour-compression heating, ventilation, air conditioning
and refrigeration (HVAC&R) systems is compulsory to achieve a low-carbon society …

The concept of cascade mechanical subcooling is recommended to widen the application of
natural working fluid CO 2, improve the efficiency and reduce the carbon footprint of CO 2 …

The field of refrigeration witness a massive transition in the supermarket with a strong focus
reflected on energy consumption. The use of ejector allows for overcoming the significant …

A transcritical CO 2 heat pump (HP) system for residential space heating integrated with
direct dedicated mechanical subcooling (DMS) is proposed, and mathematical models are …

Using carbon dioxide as a refrigerant gains importance as a result of restrictions applied to
high-GWP (Global Warming Potential) refrigerants. Although CO 2 is an environment …

A transcritical CO 2 reversible heat pump-air conditioning system combined with dedicated
mechanical subcooling (DMS) is proposed as an annual heating and cooling solution. A …

Concerns about potential climate change stemming from refrigerated systems have
increased because of the environmental burden of nonrenewable energy use and …

The use of carbon dioxide (CO 2) as refrigerant is driven by the need to phase down the
traditional synthetic refrigerant so as to mitigate the warming climate. In this study, the …

Climate change mitigation actions have led transcritical R744 refrigeration systems to take
center stage in supermarket applications worldwide. Various measures aimed at making …