Subcooling methods for CO2 refrigeration cycles: A review

R Llopis, L Nebot-Andrés, D Sánchez… - International Journal of …, 2018 - Elsevier
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 …

State-of-the-art integrated CO2 refrigeration system for supermarkets: A comparative analysis

M Karampour, S Sawalha - International journal of refrigeration, 2018 - Elsevier
This paper investigates the integrated and state-of-the art features of CO 2 trans-critical
booster systems. The main objective is to identify the most promising solutions in terms of …

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 …

CO2 refrigeration system heat recovery and thermal storage modelling for space heating provision in supermarkets: An integrated approach

G Maouris, EJS Escriva, S Acha, N Shah, CN Markides - Applied Energy, 2020 - Elsevier
The large amount of recoverable heat from CO 2 refrigeration systems has led UK food
retailers to examine the prospect of using refrigeration integrated heating and cooling …

State-of-the-art technologies for transcritical R744 refrigeration systems–a theoretical assessment of energy advantages for European food retail industry

P Gullo, K Tsamos, A Hafner, Y Ge, SA Tassou - Energy Procedia, 2017 - Elsevier
Noticeable technological advances in transcritical R744 (or “CO 2 only” or pure CO 2)
supermarket refrigeration systems have recently occurred. Consequently, the trend towards …

[HTML][HTML] Techno-economic analysis of heat recovery from supermarket's CO2 refrigeration systems to district heating networks

F Giunta, S Sawalha - Applied Thermal Engineering, 2021 - Elsevier
This paper investigates the opportunity of utilizing the spare heating capacity of CO 2
refrigeration systems in supermarkets to produce heat to be sold to district heating network …

Thermoeconomic optimization and comparison of the simple single-stage transcritical carbon dioxide vapor compression cycle with different subcooling methods for …

GB Wang, XR Zhang - Energy Conversion and Management, 2019 - Elsevier
The transcritical carbon dioxide vapor compression cycle is commonly used for heating and
cooling applications because of the high discharge temperature and large evaporation heat …

Experimental determination of the optimum working conditions of a commercial transcritical CO2 refrigeration plant with a R-152a dedicated mechanical subcooling.

L Nebot-Andrés, D Sánchez, D Calleja-Anta… - International Journal of …, 2021 - Elsevier
Transcritical CO 2 plants combined with subcooling systems are the focus of several
researches in the last years with the objective of improving their performance. Among the …

CO2 with Mechanical Subcooling vs. CO2 Cascade Cycles for Medium Temperature Commercial Refrigeration Applications Thermodynamic Analysis

L Nebot-Andrés, R Llopis, D Sánchez, J Catalán-Gil… - Applied sciences, 2017 - mdpi.com
A recent trend to spread the use of CO2 refrigeration cycles in warm regions of the world is
to combine a CO2 cycle with another one using a high performance refrigerant. Two …