Investigation of combined parallel and triple-pass v-corrugated solar air heater: A numerical and experimental study

Abdulmejeed A. E. A., Tuncer A. D., Khanlari A., GÜNGÖR A.

Process Safety and Environmental Protection, cilt.185, ss.1385-1398, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 185
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.psep.2024.03.107
  • Dergi Adı: Process Safety and Environmental Protection
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, Food Science & Technology Abstracts, Greenfile, INSPEC, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1385-1398
  • Anahtar Kelimeler: computational fluid dynamics, parallel-pass, Solar air heater, triple-pass, v-corrugated
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Renewable and safe energy sources have been used more in recent years because of rising energy needs and finite fossil fuel resources. A solar air heater (SAH) is a device that utilizes solar energy to warm air for diverse applications, including room heating, drying procedures, or ventilation. The major aim of the current study is investigating the performance of the combined utilization of grooved absorber and triple-flow air channel modification in a SAH using numerical modeling. Accordingly, CFD method has been used to model the heat and flow characteristics inside a parallel-flow v-grooved SAH (PFVSAH), a triple-flow v-grooved SAH (TFVSAH), and a combined-SAH. The experimental and numerical evaluation of PFVSAH was conducted under different climatic conditions and mass flow rates of 0.019 kg/s, 0.015 kg/s, and 0.012 kg/s. Additionally, a numerical comparison was made between PFVSAH, TFVSAH and combined-SAH. According to the numerical results, the calculated temperature differences in a TFVSAH are greater than those in a PFVSAH and less than in a combined-SAH. According to the experimental results, when the mass flow rate is 0.012 kg/s, the PFVSAH shows average thermal and exergy efficiencies of 59.51% and 29.09%, respectively. In PFVSAH, the highest temperature difference between the outlet and the inlet was 28 °C. The recorded values for the top heat loss coefficient (THLC) of the PFVSAH varied between 4.3 and 8.93 W/m2.