[HTML][HTML] Review on cold thermal energy storage applied to refrigeration systems using phase change materials

H Selvnes, Y Allouche, RI Manescu, A Hafner - Thermal Science and …, 2021 - Elsevier
This paper presents a thorough review on the recent developments and latest research
studies on cold thermal energy storage (CTES) using phase change materials (PCM) …

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 …

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 …

Review of carbon dioxide (CO2) based heating and cooling technologies: Past, present, and future outlook

S Dilshad, AR Kalair, N Khan - International Journal of Energy …, 2020 - Wiley Online Library
Refrigerants bearing high global warming potential (GWP) and ozone depletion potential
(ODP) were outlawed or facing time‐beared permission under the Montreal (1987), Kyoto …

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 …

Global market and policy trends for CO2 in refrigeration

KZ Skačanová, M Battesti - International Journal of Refrigeration, 2019 - Elsevier
The changing legislative landscape for fluorinated refrigerants is underpinning the market
trends for natural refrigerants in various sectors globally. This article outlines the main …

[HTML][HTML] 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 …

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 …