A Comparative Study on the Environmental Impact of CO2 Supermarket Refrigeration Systems
Abstract
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.
- Authors:
-
- University of Maryland, College Park
- ORNL
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Building Technologies Research and Integration Center (BTRIC)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1157150
- DOE Contract Number:
- DE-AC05-00OR22725
- Resource Type:
- Conference
- Resource Relation:
- Conference: 11th IIR Gustav Lorentzen Conference on Natural Refrigerants, Hangzhou, China, 20140831, 20140902
- Country of Publication:
- United States
- Language:
- English
- Subject:
- Low GWP; LCCP; Supermarket Refrigeration
Citation Formats
Beshr, Mohamed, Aute, Vikrant, Sharma, Vishaldeep, Abdelaziz, Omar, Fricke, Brian A, and Radermacher, Reinhard. A Comparative Study on the Environmental Impact of CO2 Supermarket Refrigeration Systems. United States: N. p., 2014.
Web.
Beshr, Mohamed, Aute, Vikrant, Sharma, Vishaldeep, Abdelaziz, Omar, Fricke, Brian A, & Radermacher, Reinhard. A Comparative Study on the Environmental Impact of CO2 Supermarket Refrigeration Systems. United States.
Beshr, Mohamed, Aute, Vikrant, Sharma, Vishaldeep, Abdelaziz, Omar, Fricke, Brian A, and Radermacher, Reinhard. 2014.
"A Comparative Study on the Environmental Impact of CO2 Supermarket Refrigeration Systems". United States.
@article{osti_1157150,
title = {A Comparative Study on the Environmental Impact of CO2 Supermarket Refrigeration Systems},
author = {Beshr, Mohamed and Aute, Vikrant and Sharma, Vishaldeep and Abdelaziz, Omar and Fricke, Brian A and Radermacher, Reinhard},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/1157150},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 2014},
month = {Wed Jan 01 00:00:00 EST 2014}
}