Experiment and Theoretical Analysis of Using Natural Cold Source and Cold Storage in Food Refrigerated Display Cabinet

Abstract

In view of the outstanding problem of high energy consumption of refrigerated display cabinets, this work focuses on the analyzes 5 operation modes and strategy of energy storage natural cold source refrigerated display cabinets by means of experiment and theoretical analysis. First, the 5 operation modes of the energy storage natural cold source refrigerated display cabinets was experimentally investigated. The results show that all the 5 operation modes keep the temperature of the test package in the cabinet at -1-7°C. Then, the operation strategies of the energy storage natural cold source refrigerated display cabinet system in four typical design days and the whole year are designed and analyzed. The result showed that compared with the traditional freezer, the energy consumption of the system with energy storage natural cold source system is reduced by 25.46%, 14.50%, 15.65%, 41.95% and 21.08%, respectively. The present study can provide a reference basis for the operation strategy of energy storage refrigerated display cabinet.

Keywords: Natural cold source, Cold storage, Refrigerated display cabinet