Examination of energy and visual comfort performance of thermo-chromic coatings for cellular offices
ENERGY, cilt.267, 2023 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 267
- Basım Tarihi: 2023
- Doi Numarası: 10.1016/j.energy.2022.126517
- Dergi Adı: ENERGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Communication Abstracts, Compendex, Computer & Applied Sciences, Environment Index, INSPEC, Metadex, Pollution Abstracts, Public Affairs Index, Veterinary Science Database, Civil Engineering Abstracts
- Orta Doğu Teknik Üniversitesi Adresli: Hayır
Özet
Thermo-chromic coatings are promising passive systems for providing energy saving performance. They change their optical properties within visible and solar wavelengths according to their temperature, as these coatings contain materials such as vanadium dioxide (VO2) that change phase at their transition temperature. In this study, energy savings performance of thin pigmented thermo-chromic coating attached on an ordinary window glass is investigated by modeling a simple office room for three different transition temperatures in three cities that are all in different climate regions of Turkey; Izmir, Istanbul and Ankara. Optical properties of thin thermo-chromic coatings attached on an ordinary glass are determined by transfer matrix method considering particle concentration and thickness of the coating. Optimal coating for all climatic conditions are determined by optimization for high energy savings performance while considering visual comfort. Comparison between double glazings with thin thermo-chromic coatings and ordinary double glazing is presented for energy improvement and visual comfort by useful daylight illuminance (UDI) approach. Consequently, up to 26% and 9% energy saving potential are observed in relatively hot and cold climates, respectively.