Numerical thermal performance assessment of a Trombe wall solar chimney for passive space heating under variable solar radiation and outdoor temperature
Journal of Thermal Analysis and Calorimetry, cilt.151, sa.13, ss.1-10, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 151 Sayı: 13
- Basım Tarihi: 2026
- Dergi Adı: Journal of Thermal Analysis and Calorimetry
- Derginin Tarandığı İndeksler: Academic Search Ultimate (EBSCO), Engineering Source (EBSCO), Scopus, Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest), Aerospace Database, Science Citation Index Expanded (SCI-EXPANDED), Chemical Abstracts Core, Chimica, Compendex, Index Islamicus, INSPEC
- Sayfa Sayıları: ss.1-10
- Recep Tayyip Erdoğan Üniversitesi Adresli: Evet
Özet
Solar chimneys are noteworthy for their simple structure and operation based on fundamental physical laws. This study investigates the passive heating potential of a wall-mounted solar chimney (Trombe Wall) integrated into the wall of an enclosed room, considering radiation and convection effects. After creating a 2D CFD model, the movement of air in an enclosed room due to natural convection effects is tracked using a discrete ordinate (DO) radiation model and a k-ω SST turbulence model. After a detailed validation of the model with mesh-independent solutions and literature, the system's performance is tested with changes in climatic parameters. Temperature, air velocity, and room temperature increments are tested at ambient temperatures ranging from -15°C to 15°C and solar radiation values varying between 200-1000 W/m2. It is observed that a greater temperature increase is obtained at lower ambient temperatures with the same solar radiation. A temperature rise of approximately 14°C is demonstrated at an average room temperature of -15°C, which is remarkable. In winter, with 600 W/m2 of solar radiation and an ambient temperature of -5°C, the average room temperature is approximately 7.7°C without additional energy consumption. A simplified temperature-difference-based estimate suggests that the heating demand required to reach 20°C could be diminished by nearly 40-50% under selected winter conditions.