Optimizing Trombe Wall performances: The impact of L-shaped fins on solar heating efficiency and building thermal comfort

Abstract

This study delves into optimizing the thermal efficiency of Trombe Wall (TW) systems through the strategic integration of L-shaped fins, offering a novel approach to enhancing solar heating capabilities in buildings. By meticulously examining the effects of fin geometry-including thickness, length, and number-on the system’s performance, the research provides valuable insights into the design and operational optimization of TW systems. Using CFD simulations, the investigation reveals that specific fin configurations significantly improve heat transfer and air circulation within the TW, thereby augmenting the system’s thermal efficiency. Main results suggest that a fin thickness of 0.01 m and a fin length of 0.2 m, combined with an optimal number of fins, can achieve the most effective thermal performance, enhancing room temperature homogeneity while adhering to comfort standards. This comprehensive analysis underscores the critical role of fin geometry in solar heating technologies and paves the way for future innovations in sustainable building designs. The study’s implications extend beyond immediate energy savings, suggesting avenues for further research into material efficiencies and architectural integration, ultimately contributing to the broader adoption of renewable energy solutions in the construction sector.