## 1 Introduction  
The use of industrial refrigeration technology for food preservation is known to be an efficient and widely used technology from crop harvesting to final consumption by customers. The transport systems to operate these cold chain systems must maintain optimal food storage temperatures to ensure optimal safety and high-quality shelf life. The sustainability of cooling systems is also increasingly considered due to their excellent properties for preserving food. When considering the sustainability of a cold chain system, an approach from a total cost aspect is required. For example, maintaining lower temperatures for food preservation may require more energy consumption, but it can significantly extend shelf life and reduce waste, so energy costs are high but environmental costs are low. Thus, it can lead to a sustainable system [1]. The technology used for long-running cooling storage systems is mostly based on a vapor compression cooling system to generate cold air. The vapor compression cycle method requires a considerable amount of electrical energy. In particular, if an appropriate energy-efficient design is not implemented in the storage space, the energy consumption increases. Refrigerators, which play an important role in terms of household appliances and are used as the most efficient method to store food, account for a large portion of electrical energy consumption in the home, with a rate of 14-19%. Therefore, in a reality where resource depletion and global warming are reaching serious levels, refrigerator energy efficiency has emerged as an important issue in the efficient management of electrical energy in the home [2]. According to the research results of [PERSON] [3], it was concluded that improving the energy efficiency of household refrigerators can bring significant energy savings, and it was estimated that if ecologically beneficial recycling designs and energy label policies were successfully implemented, they could save 6 TWh of energy per year. [PERSON] [4] selected external temperature, enclosure, insulation, door opening time, etc., as parameters that affect thermal energy gain, and energy consumption was simulated from the point of the design of the cooling chamber in order to organize and implement the correct efficiency measurement method for production facilities using cold storage. In addition, a methodology for optimizing energy consumption was developed by applying the results. [PERSON] [5] reported an experimental study considering the parameters affecting the percentage of operating time in the freezer compartment of a domestic refrigerator. In the experiment, it was confirmed that the energy consumption of the refrigerator changes according to parameters such as the evaporator temperature, air flow rate, insulation, and internal volume adjustment, and a mathematical model calculated based on these results was presented. [PERSON] [6] conducted simulations that also reflected the influence of the surface material and the internal volume of the refrigerator compartment to create a sustainable design for the automated refrigeration warehouse. To minimize the total annual cost of a refrigerated automatic storage facility, a model was developed that considers the influence of the temperature of the stored food and the energy loss caused by opening the door during operation. By applying the storage temperature and incoming product temperature using the model presented in this method, it is possible to analyze and optimize the impacts of actual operation variables on costs. Through this method, the energy use and carbon dioxide emissions of the entire food supply chain were controlled, and the storage facility properties of the supply chain design model were properly evaluated, so the entire cold chain system was able to be optimized.