Comparative analysis of various CO2 configurations in supermarket refrigeration systems

Sharma, Vishaldeep; Fricke, Brian; Bansal, Pradeep

doi:10.1016/j.ijrefrig.2014.07.001

Comparative analysis of various CO₂ configurations in supermarket refrigeration systems

Journal Article · Wed Jul 09 00:00:00 EDT 2014 · International Journal of Refrigeration

DOI:https://doi.org/10.1016/j.ijrefrig.2014.07.001· OSTI ID:1185346

^[1]; Fricke, Brian ^[1]; Bansal, Pradeep ^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Our paper presents an analysis of various CO₂ transcritical and cascade/secondary loop refrigeration systems that are becoming popular in supermarket applications with the objective of optimizing the operating parameters of these systems. In addition, the performance of selected CO₂-based refrigeration systems is compared to the baseline R404A multiplex direct expansion system using bin analyses in the eight climate zones of the United States. Moreover, for the refrigeration systems investigated, it was found that the Transcritical Booster System with Bypass Compressor (TBS-BC) had the lowest energy consumption for ambient temperatures (T_amb) less than 8 °C, and for higher ambient temperatures the R404A direct expansion system was found to have the lowest energy consumption. Finally, the TBS-BC performs equivalent to or better than the R404A direct expansion system in the northern two-thirds of the US. For the southern portion of the US, the R404A multiplex DX system performs better than CO₂ systems.

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1185346

Journal Information:: International Journal of Refrigeration, Journal Name: International Journal of Refrigeration Journal Issue: C Vol. 46; ISSN 0140-7007

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited By (6)

Efficient R744 technology for supermarket heating, cooling and refrigeration - a theoretical assessment of energy advantages in various Spanish cities. Gullo, P.; Hafner, A.; Banasiak, K. International Institute of Refrigeration (IIR) https://doi.org/10.18462/iir.gl.2018.1357	dataset	January 2018
Thermodynamic analysis of novel heat pump cycles for drying process with large temperature lift Peng, Zhao‐Rui; Wang, Guan‐Bang; Zhang, Xin‐Rong International Journal of Energy Research, Vol. 43, Issue 8 https://doi.org/10.1002/er.4394	journal	March 2019
Energy Evaluation of Multiple Stage Commercial Refrigeration Architectures Adapted to F-Gas Regulation Catalán-Gil, Jesús; Sánchez, Daniel; Llopis, Rodrigo Energies, Vol. 11, Issue 7 https://doi.org/10.3390/en11071915	journal	July 2018
Performance Evaluation of a CO2 Refrigeration System Enhanced with a Dew Point Cooler Belusko, Martin; Liddle, Raymond; Alemu, Alemu Energies, Vol. 12, Issue 6 https://doi.org/10.3390/en12061079	journal	March 2019
An Object-Oriented R744 Two-Phase Ejector Reduced-Order Model for Dynamic Simulations Haida, Michal; Fingas, Rafal; Szwajnoch, Wojciech Energies, Vol. 12, Issue 7 https://doi.org/10.3390/en12071282	journal	April 2019
CO2 Refrigeration and Heat Pump Systems—A Comprehensive Review Bruno, Frank; Belusko, Martin; Halawa, Edward Energies, Vol. 12, Issue 15 https://doi.org/10.3390/en12152959	journal	August 2019

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Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
Carbon dioxide
Cascade system
Refrigeration
Secondary loop system
Thermodynamics
Transcritical booster system