Effects of low-E shields on the performance and power use of a refrigerated display case

TLDR: In this paper, a test to evaluate the impact of low-emissivity aluminum shields on the power use and thermal performance of a multi-deck display case typically used in supermarkets for storing dairy products was conducted.

Abstract: This paper discusses a test to evaluate the impact of lowemissivity aluminum shields on the power use and thermal performance of a multi-deck display case typically used in supermarkets for storing dairy products. The refrigerating system’s critical temperature and pressure points were tracked during the test, and the readings were then utilized to quantify various heat transfer and power-related parameters of the refrigeration cycle. It was found that using shields for extended hours of operation provides the most reduction in refrigeration load and power use.