Refrigeration is a branch of engineering that focuses on the study, design, and implementation of systems used to cool or freeze materials or spaces. The goal of refrigeration systems is to lower the temperature of a substance to preserve it, keep it fresh, or create a comfortable environment. This field employs principles of thermodynamics, fluid mechanics, and heat transfer to develop efficient and sustainable cooling technologies. Refrigeration systems are widely used in various applications, including food storage, air conditioning, medical equipment, and industrial processes. Researchers in this area aim to improve energy efficiency, reduce environmental impact, and enhance the performance of refrigeration technologies.