Utilizing Phase Change Materials for Sun-Powered Refrigerators: Experimental Validation in Outdoor Environment

n pursuing sustainable refrigeration solutions, integrating phase change materials (PCMs) within sun-powered refrigerators emerges as a promising avenue to mitigate challenges associated with sun radiation intermittency and reliance on large battery systems. This paper comprehensively examines incorporating PCMs into sun-powered refrigerators to address critical issues hindering the widespread adoption of solar refrigeration technologies, particularly in medicine and perishable goods. The primary objective of this study is to assess the efficacy of PCM integration in achieving grid disconnection and enabling autonomous operation of sun-powered refrigerators. Through experimentation and data analysis, our findings elucidate the transformative impact of PCM utilization on the performance and sustainability of solar refrigeration systems. Key outcomes from the experimental trials demonstrate that incorporating PCMs facilitates prolonged operation of sun-powered refrigerators, even without direct sunlight. By harnessing the thermal storage capabilities of PCMs, the refrigeration unit achieves grid independence, thereby mitigating reliance on conventional power sources and large battery configurations. In conclusion, integrating phase change materials is pivotal to achieving energy autonomy and sustainability in sun-powered refrigeration systems. Through collaborative efforts and continued innovation, PCM-enabled refrigeration technologies hold immense promise in revolutionizing cold chain logistics and enhancing global access to vital medical resources and foodstuffs.