Parametric study of venetian blinds for energy performance evaluation and classification in residential buildings. (15th January 2022)

• Record Type: Journal Article
• Authors: Tan, Yutong; Peng, Jinqing; Luo, Yimo; Gao, Jing; Luo, Zhengyi; Wang, Meng; Curcija, Dragan C.
• Is Part Of: Energy. Volume 239:Part D(2022)
• Publication Date: 2022-01-15
• Subjects: Venetian blinds -- Thermal and optical characteristics -- Sensitivity analysis -- Annual energy performance -- Standardized evaluation; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Energy consumption -- Periodicals; 333.7905
• DOI: 10.1016/j.energy.2021.122266
• Languages: English
• ISSNs: 0360-5442

Abstract

Abstract: Venetian blinds are widely used to improve the performance of window systems, while their energy-saving potentials vary with different materials. This paper aims to undertake a standardized evaluation of the annual energy-saving potential of venetian blinds in residential buildings, and identify the most influential parameters for design optimization. To achieve this goal, nine parameters were chosen to establish venetian blinds models in WINDOW. Then, 9072 shading models were coupled with building models for annual energy consumption simulation in EnergyPlus, where the shading schedule was derived from questionnaires. Further, an experiment was conducted to verify the reliability of the joint simulation between WINDOW and EnergyPlus. Finally, annual energy performance (AEP) was adopted for a standardized energy efficiency evaluation of various venetian blinds products, and the sensitivity analysis of AEP to various parameters was conducted to identify the key parameters. The results indicated that by adjusting the key parameters of the venetian blinds, cooling energy saving can reach 44% and the heating energy saving can be up to 65%. The significant energy saving potential of venetian blinds indicates the prospect and importance of their use in residential buildings. Highlights: A standardized evaluation method for venetian blinds was proposed. The accuracy of joint-simulation of WINDOW and EnergyPlus was validated. Conductivity of venetian blinds has few impacts on their energy performance. Solar reflectance and transmittance are two key parameters for energy savings. 65% heating energy consumptions can be saved by adjusting material parameters.