Performance evaluation of a flat-plate solar collector with polished, unpolished, and erbium Phthalocyanine-Coated Glass
Year: 2025
Type: article
Abstract: The study evaluates the impact of Erbium Phthalocyanine [ErPc] coatings on flat-plate solar heaters with different glass covers. SEM analysis revealed high-purity ErPc with nanospherical morphology, enhancing solar radiation absorption. However, agglomerates and nanowires may affect optical and thermal properties, highlighting the need for improved film uniformity. Solar heaters with ErPc coatings showed higher initial absorber plate temperatures, suggesting enhanced energy capture, but also exhibited temperature declines over time, indicating complex heat transfer dynamics. Polished glass allowed greater solar transmittance but increased thermal emissivity and heat loss, while unpolished glass better retained heat despite lower initial transmittance. The ErPc film modulated thermal response, possibly absorbing infrared radiation, but its full effect requires further study. The findings suggest that selective coatings like ErPc could improve solar heater efficiency, though optimizing film deposition, thorough thermal characterization, and long-term performance assessments under varying conditions are necessary for practical application.
Source: Revista del Diseño Innovativo
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7119687656