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 …

Energy efficiency evaluation of integrated CO2 trans-critical system in supermarkets: A field measurements and modelling analysis

M Karampour, S Sawalha - International journal of refrigeration, 2017 - Elsevier
This paper investigates energy efficiency of an integrated CO 2 trans-critical booster system
installed in a supermarket in Sweden. The supermarket has applied several features to …

Integrated supermarket refrigeration for very high ambient temperature

N Purohit, V Sharma, S Sawalha, B Fricke, R Llopis… - Energy, 2018 - Elsevier
This paper analytically investigates and compares the performance of a proposed 'all-
natural'NH 3/CO 2 cascaded booster system to a conventional R404A direct expansion …

Energy evaluation of multiple stage commercial refrigeration architectures adapted to F-gas regulation

J Catalán-Gil, D Sánchez, R Llopis, L Nebot-Andrés… - Energies, 2018 - mdpi.com
This work analyses different refrigeration architectures for commercial refrigeration providing
service to medium and low temperature simultaneously: HFC/R744 cascade, R744 …

Field tests, model validation and performance of a CO2 commercial refrigeration plant integrated with HVAC system

P D'Agaro, MA Coppola, G Cortella - International Journal of Refrigeration, 2019 - Elsevier
A fully instrumented CO 2 trans-critical booster system with parallel compression, in
operation in a small size supermarket in northern Italy, made available measured data that …

[PDF][PDF] Eco-friendly supermarkets: an overview

M Karampour, S Sawalha, J Arias - 2016 - diva-portal.org
This report reviews the technical characteristics of eco-friendly supermarkets. This has been
fulfilled by presenting the conventional and eco-friendly cooling and heating systems …

Integration of heating and air conditioning into a CO2 trans-critical booster system with parallel compression part II: Performance analysis based on field …

M Karampour, S Sawalha - … Working Fluids Conference, GL 2016, 21 …, 2016 - diva-portal.org
This paper investigates the energy efficiency performance of an integrated CO2 trans-critical
booster system providing refrigeration, heating and air conditioning demands of a small …

Thermodynamic Analysis of Transcritical CO2 Booster Systems with Flooded Evaporator for Supermarket Application

M Lata, AK Yadav, DK Gupta - … and Climate Change: Proceedings of REC …, 2020 - Springer
The paper presents the thermodynamic modeling and analysis of a CO 2 booster system
operating in a transcritical cycle with flooded evaporator for the supermarket application. In …

[PDF][PDF] Supermarket refrigeration and heat recovery using CO2 as refrigerant

M Karampour, S Sawalha - Swedish Energy Agency: Stockholm, Sweden, 2014 - kys.se
This project investigates the potentials, challenges and opportunities of using CO2 as
refrigerant in the supermarket refrigeration and heat recovery systems. The focus is on CO2 …

Supermarket refrigeration and heat recovery using CO2 as refrigerant: A comprehensive evaluation based on field measurements and modelling

M Karampour, S Sawalha - 2014 - diva-portal.org
This project investigates the potentials, challenges and opportunities of using CO2 as
refrigerant in the supermarket refrigeration and heat recovery systems. The focus is on CO2 …