Uji Performa Absorber Prisma dengan Pelapisan Titanium Dioksida pada Kolektor Surya

Abstract

This study aims to analyze the performance of a solar collector with a V-corrugated prism absorber coated with titanium dioxide (TiO₂). The research was carried out experimentally using a solar collector with two absorber coating configurations, namely upper-side and lower-side TiO₂ coating. The observed parameters included solar radiation intensity, inlet and outlet air temperature and absorber temperature. The results indicate that the lower-side TiO₂ coating demonstrated superior thermal performance compared to the upper-side coating. The solar collector with the lower coating achieved a maximum outlet temperature of 96°C and the highest efficiency of 14.45%, whereas the upper coating only reached 89.7°C and 13.92%, respectively. These findings show that applying TiO₂ on the lower side of the prism absorber enhances heat absorption and maintains a stable temperature distribution.