Industrial and large-scale heat pumps are a well-established, clean and low-emission
technology for processing temperatures below 100° C, especially when powered by …

As a highly efficient thermodynamic cycle formed by pure natural fluid and using
aerothermal energy, transcritical CO 2 technology has huge advantages in terms of energy …

An environmental and economical assessment model is developed, in order to evaluate the
performances of transcritical CO 2 heat pump system with dedicated mechanical subcooling …

With carbon emission levels on the rise, rapid and far-reaching action is needed to
counteract global warming. Among many available strategies, CO 2 is nowadays more and …

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 …

In this work the possibilities of enhancing the energy performance of CO 2 transcritical
refrigeration systems using a dedicated mechanical subcooling cycle are analysed …

CO 2 transcritical refrigeration cycles require optimization to reach the performance of
conventional solutions at high ambient temperatures. Theoretical studies demonstrated that …

Since its resurgence as a refrigerant in the 1990s, Carbon Dioxide (CO 2) has grown in
popularity and breadth of application. Its negligible global warming potential (GWP) …

In the present study an experimental comparison between the standard CO2 expansion
valve refrigeration cycle and the ejector refrigeration cycle is presented. High pressure …

Stratospheric ozone depletion and global temperature elevation resulting from the discharge
of refrigerants from conventional cooling systems have demonstrated to be a menace to …