[HTML][HTML] Advanced development and application of transcritical CO2 refrigeration and heat pump technology—A review

Y Song, C Cui, X Yin, F Cao - Energy Reports, 2022 - Elsevier
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 …

Research and application progress of transcritical CO2 refrigeration cycle system: a review

D Yang, Y Li, J Xie, J Wang - International Journal of Low …, 2022 - academic.oup.com
CO2 refrigerant and its transcritical cycle system have become the research focus in the
refrigeration field due to their advantages of environmentally friendly, safe and low …

Multi-objective optimization of a cold-climate two-stage economized heat pump for residential heating applications

AM Bahman, T Parikhani, D Ziviani - Journal of Building Engineering, 2022 - Elsevier
Energy consumption and environmental concerns are the two main drivers optimize heat
pump systems. However, under extreme weather conditions especially in heating mode …

[HTML][HTML] Experimental assessment of dedicated and integrated mechanical subcooling systems vs parallel compression in transcritical CO2 refrigeration plants

L Nebot-Andres, D Calleja-Anta, D Sánchez… - Energy Conversion and …, 2022 - Elsevier
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 …

Multi-objective optimization analysis of combined heating and cooling transcritical CO2 system integrated with mechanical subcooling utilizing hydrocarbon mixture …

B Dai, Q Wang, S Liu, J Zhang, Y Wang, Z Kong… - Energy Conversion and …, 2024 - Elsevier
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 …

CO2 system integrated with ejector and mechanical subcooling: a comprehensive assessment

B Dai, R Zhao, S Liu, T Xu, J Qian, X Wang… - Applied Thermal …, 2023 - Elsevier
To achieve the goal of clean annual space heating and cooling for residential buildings, the
concept of annual space heating and cooling transcritical CO 2 system combined with …

Improving efficiency of transcritical CO2 cycles through a magnetic refrigeration subcooling system

L Nebot-Andrés, MG Del Duca, C Aprea… - Energy Conversion and …, 2022 - Elsevier
Subcooling methods for transcritical CO 2 plants are being studied in order to improve the
behaviour of these systems in hot climates, where basic configurations are not competitive …

Experimental determination of the optimum intermediate and gas-cooler pressures of a commercial transcritical CO2 refrigeration plant with parallel compression

L Nebot-Andrés, D Sánchez, D Calleja-Anta… - Applied Thermal …, 2021 - Elsevier
CO 2 systems used in refrigeration are becoming more complex with the aim of improving
their energy performance. Parallel compression is one of the implemented solutions to …

[HTML][HTML] Experimental evaluation of zeotropic refrigerants in a dedicated mechanical subcooling system in a CO2 cycle

R Llopis, G Toffoletti, L Nebot-Andrés… - International Journal of …, 2021 - Elsevier
Use of zeotropic blends in the dedicated mechanical subcooling system of a CO 2
refrigeration system was suggested as a possible improvement due to matching of …

New scenario of CO2 heat pump for space heating: Automatic mode switch between modified transcritical and cascade cycle in one system

JH Cheng, YJ He, CL Zhang - Applied Thermal Engineering, 2021 - Elsevier
Hot water production and space heating consume huge amounts of energy. CO 2 heat pump
has been proven more efficient in hot water production, but less efficient in space heating. In …