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 …

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 …

Using air source heat pump system for residential heating is a practical way to replace coal-
fired boiler in China to alleviate the haze problem, and CO 2 is a promising candidate to …

In this paper, a transcritical CO 2 heat pump water heater prototype was experimentally
investigated to research the influence of internal heat exchanger (IHX). In addition, the …

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 …

Heat pump (HP) is one of the most energy efficient tools for address heating and possibly
cooling needs in buildings. Growing environmental concerns over conventional HP …

This study proposes a new transcritical CO 2 heat pump integrated with ejector and latent
heat energy storage system, and compares the performance of the system with and without …

Concerns about climate changes are urging the decarbonisation of the energy sector and
heat pumps are evaluated for this purpose here. About half of total energy consumption is …