Numerical investigation of photothermal performance of glazed window integrated with airflow channel and phase change material

Geng D., Yang X., Li D., Yang R., Ma Y., Wu Y., ...Daha Fazla

Energy Sources, Part A: Recovery, Utilization and Environmental Effects, cilt.45, sa.3, ss.8203-8217, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 45 Sayı: 3
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1080/15567036.2023.2225468
  • Dergi Adı: Energy Sources, Part A: Recovery, Utilization and Environmental Effects
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, ABI/INFORM, Aerospace Database, Applied Science & Technology Source, CAB Abstracts, Communication Abstracts, Compendex, Computer & Applied Sciences, Environment Index, Greenfile, INSPEC, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.8203-8217
  • Anahtar Kelimeler: airflow window, buildings, parameter analysis, PCM, photothermal performance
  • Kocaeli Üniversitesi Adresli: Evet

Özet

Double-glazed window coupled with phase change material (PCM) improves the thermal inertia and heat storage capacity, but the inefficient utilization of latent heat stored in PCM restricts the application in cold regions in winter. To surmount the deficiencies, a PCM ventilation window (PCMVW) with an airflow channel installed outside is proposed, in which the external ambient air enters the room after being heated by the PCM layer to realize the adequate utilization and recovery of the energy stored in the PCM. A two-dimensional model was established to investigate the photothermal performance of PCMVW in winter. Then, the effects of airflow rate and PCM melting point on the photothermal performance of PCMVW are analyzed. The results show that the thermal performance of the structure achieves significant enhancement with the airflow channel installed, which saves 521 kJ/d of energy, and the temperature fluctuation is 0.68 times that of the traditional PCMW. Meanwhile, the airflow improves the dynamic transmittance of the window at certain times. Remarkable enhancement of the thermal performance and optical performance of the PCMVW is achieved by adjusting the air mass flow rate and PCM melting point, which provides solutions for the application of PCMVW in cold regions.