Performance Assessment of Low-GWP Refrigerated Reach-In Display Cases

Ramin Faramarzi, Alex Bulk, Steven LaBarge

Research output: NRELPresentation


This project is part of an effort by Commonwealth Edison Company (ComEd) to evaluate the energy and peak demand savings potential of emerging technologies in the Chicago area. This document focuses on the assessment of energy-efficient, medium-temperature, self-contained refrigerated display cases utilizing environmentally friendly refrigerants. The results of this evaluation will be considered by ComEd and CLEAResult to develop a new energy efficiency rebate measure for ComEd's incentive programs. This rebate measure will become an addition to the Technical Reference Manual. In 2016, the United Nations passed the Kigali Montreal Protocol Amendment, which placed restrictions on certain types of refrigerants. In compliance with this amendment, the U.S. Environmental Protection Agency (EPA) placed a ban on the manufacture of refrigeration systems using hydrofluorocarbons including R134a starting in January 2020. Although the ban has halted manufacture, the EPA continues to allow the use of these refrigerants. Therefore, it is critical to provide incentives for replacing these refrigerants with other environmentally friendly and energy-efficient alternatives.
Original languageAmerican English
Number of pages47
StatePublished - 2023

Publication series

NamePresented at the ASHRAE Winter Conference, 4-8 February 2023, Atlanta, Georgia

NREL Publication Number

  • NREL/PR-5500-84783


  • alternative refrigerants
  • environmental chamber
  • hydrocarbon refrigerant
  • hydrofluorocarbon
  • hydrofluoroolefin
  • reach-in refrigeration
  • refrigerants
  • refrigeration
  • self-contained
  • self-contained refrigeration


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