에너지 저장기술 기반 태양열 시스템 효율 개선 연구 동향 고찰 및 국내 활성화 방안 제안 = Review of Research Trends in Improving the Efficiency of Solar Thermal Systems based on Energy Storage Technology and Proposal of Domestic Activation Strategies

다국어 초록 (Multilingual Abstract)

The rapid technological advancement post-industrialization and the global population surge necessitate urgent improvements in energy efficiency and the widespread adoption of renewable energy sources. This study examines research trends aimed at activating the domestic solar thermal system market. It scrutinizes the composition and characteristics of various solar thermal systems, focusing on non-concentrating and concentrating collectors. A key research trend explored is the application of phase change material (PCM) in energy storage systems. Additionally, ongoing research aims to enhance collector efficiency through nanoparticle integration. These technologies find active applications in diverse solar thermal systems like hot water systems, solar air heaters, solar stills, solar cookers, and solar ponds. The study observes research on seasonal thermal storage for solar thermal systems. However, practical market expansion requires addressing fundamental issues in current systems beyond energy storage materials and fin applications. From this standpoint, the study proposes a solar heat pump station technology, utilizing heat circulation and hot water circulation modules to overcome traditional system limitations.