TY - GEN
T1 - A comparative study on the environmental impact of CO2 supermarket refrigeration systems
AU - Beshr, M.
AU - Aute, V.
AU - Sharma, V.
AU - Abdelaziz, O.
AU - Fricke, B.
AU - Radermacher, R.
PY - 2014
Y1 - 2014
N2 - Supermarket refrigeration systems have high environmental impact due to their large refrigerant charge and high leak rates. Accordingly, the interest in using natural refrigerants, such as carbon dioxide (CO2), and new refrigerant blends with low GWP in such systems is increasing. In this paper, an open-source Life Cycle Climate Performance (LCCP) framework is presented and used to compare the environmental impact of three supermarket refrigeration systems. These systems include a transcritical CO2 booster system, a cascade CO2/N-40 system, and a baseline R-404A multiplex direct expansion system. The study is performed for cities representing different climates within the USA using EnergyPlus to simulate the systems' hourly performance. Finally, a parametric analysis is performed to study the impact of annual leak rate on the systems' LCCP.
AB - Supermarket refrigeration systems have high environmental impact due to their large refrigerant charge and high leak rates. Accordingly, the interest in using natural refrigerants, such as carbon dioxide (CO2), and new refrigerant blends with low GWP in such systems is increasing. In this paper, an open-source Life Cycle Climate Performance (LCCP) framework is presented and used to compare the environmental impact of three supermarket refrigeration systems. These systems include a transcritical CO2 booster system, a cascade CO2/N-40 system, and a baseline R-404A multiplex direct expansion system. The study is performed for cities representing different climates within the USA using EnergyPlus to simulate the systems' hourly performance. Finally, a parametric analysis is performed to study the impact of annual leak rate on the systems' LCCP.
UR - http://www.scopus.com/inward/record.url?scp=84932168551&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84932168551
T3 - 11th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerants and Environmental Protection, GL 2014
SP - 269
EP - 276
BT - 11th IIR Gustav Lorentzen Conference on Natural Refrigerants
A2 - Hu, Wangyang
A2 - Zhao, Guojun
PB - International Institute of Refrigeration
T2 - 11th IIR Gustav Lorentzen Conference on Natural Refrigerants, GL 2014
Y2 - 31 August 2014 through 2 September 2014
ER -