Akademik Veri Yönetim Sistemi
Solar Energy, cilt.313, 2026 (SCI-Expanded, Scopus)
Passive solar Trombe wall systems are effective renewable heating solutions; however, their performance is strongly constrained by the thermal storage material and surface heat transfer efficiency. This study presents the first full-scale experimental comparison of two natural zeolite–perlite composite Trombe wall configurations, focusing on the impact of copper surface modification on thermal, economic, and environmental performance. A natural zeolite based composite Trombe wall (CTW) and a copper-sheeted configuration with a black selective surface (CSCTW) were experimentally assessed under comparable real climatic conditions. The results demonstrate that copper surface integration significantly enhances heat transfer within the air channel, increasing the maximum indoor–outdoor temperature difference from 12.1 °C to 18.4 °C. Although both systems achieved similar peak useful heat outputs (702–704 W), the CSCTW exhibited a faster thermal response and earlier heat delivery. The maximum energy efficiency reached 43%, while exergy analysis confirmed improved thermodynamic performance for the copper-modified configuration. Thermal stability indicators revealed lower thermal load levelling and decrement factor values, indicating improved indoor temperature regulation despite a more dynamic thermal behaviour. Economic analysis showed that both systems are financially viable, with the copper-modified configuration achieving a payback period of approximately four years under natural gas heating conditions. In addition, the CSCTW provided higher annual energy savings and greater CO2 emission reductions. The findings demonstrate that integrating copper surface modification with zeolite–perlite composite thermal storage represents a novel, cost-effective, and environmentally beneficial strategy for enhancing passive solar Trombe wall performance in renewable building heating applications.