Transcritical R744 refrigeration systems for supermarket applications: Current status and future perspectives

P Gullo, A Hafner, K Banasiak - International Journal of Refrigeration, 2018 - Elsevier
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 …

Multi-ejector concept: A comprehensive review on its latest technological developments

P Gullo, A Hafner, K Banasiak, S Minetto, EE Kriezi - Energies, 2019 - mdpi.com
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 …

Multi-ejector R744 booster refrigerating plant and air conditioning system integration–A theoretical evaluation of energy benefits for supermarket applications

P Gullo, A Hafner, G Cortella - international journal of refrigeration, 2017 - Elsevier
The multi-ejector rack is the most promising technology to push the so-called “CO 2 equator”
further south and improve the global energy efficiency of R744 supermarket refrigeration …

Crossing CO2 equator with the aid of multi-ejector concept: A comprehensive energy and environmental comparative study

P Gullo, KM Tsamos, A Hafner, K Banasiak, TG Yunting… - Energy, 2018 - Elsevier
The ever-stricter regulations put into effect worldwide to significantly decrease the
considerable carbon footprint of commercial refrigeration sector have forced the transition to …

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 …

Impact and quantification of various individual thermodynamic improvements for transcritical R744 supermarket refrigeration systems based on advanced exergy …

P Gullo - Energy Conversion and Management, 2021 - Elsevier
Climate change mitigation actions have led transcritical R744 refrigeration systems to take
center stage in supermarket applications worldwide. Various measures aimed at making …

[HTML][HTML] Experimental investigation of a new CO2 refrigeration system arrangement for supermarket applications

A Paez, B Ballot-Miguet, B Michel, P Tobaly… - International Journal of …, 2024 - Elsevier
A new position of an internal heat exchanger within the thermodynamic cycle is proposed to
improve the performance of CO 2 refrigeration systems in warm climates, specifically in …

Performance evaluation and comparative analysis of trans-critical CO2 booster refrigeration systems with modified evaporative cooled gas cooler for supermarket …

M Lata, DK Gupta - International Journal of Refrigeration, 2020 - Elsevier
In this paper, the performance of CO 2 booster refrigeration systems with eight different
configurations for the supermarket application is analysed and compared with the …

Innovative fully integrated transcritical R744 refrigeration systems for a HFC-free future of supermarkets in warm and hot climates

P Gullo - International Journal of Refrigeration, 2019 - Elsevier
The regulatory pressures on environmentally deleterious refrigerants have been growing
more intense, prompting CO 2 to draw ever-widening attraction as the sole working fluid …

Energetic, economic, and environmental analysis of CO2 booster refrigeration systems of supermarket application for Türkiye

M Isik, N Bilir Sag - Sādhanā, 2023 - Springer
Refrigeration systems account for nearly half of the electricity consumed by supermarkets. In
order to save energy and reduce CO2 emissions, CO2 booster refrigeration systems have …