TY - JOUR
T1 - Energy savings potential of reversible photothermal windows with near infrared-selective plasmonic nanofilms
AU - Anwar Jahid, Md
AU - Wang, Julian
AU - Zhang, Enhe
AU - Duan, Qiuhua
AU - Feng, Yanxiao
N1 - Funding Information:
We acknowledge the financial support provided by the National Science Foundation CMMI-2001207 and National Science Foundation CMMI-1953004. We thank Dr. Donglu Shi's research group at the University of Cincinnati for providing the material samples. We also need to acknowledge the support of the Material Characterization Laboratory of Penn State Materials Research Institute.
Funding Information:
We acknowledge the financial support provided by the National Science Foundation CMMI-2001207 and National Science Foundation CMMI-1953004. We thank Dr. Donglu Shi’s research group at the University of Cincinnati for providing the material samples. We also need to acknowledge the support of the Material Characterization Laboratory of Penn State Materials Research Institute.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/7/1
Y1 - 2022/7/1
N2 - A variety of dynamic window and glazing systems with variable solar heat gain control features reacting to seasonal weather conditions and indoor space heating and cooling demands have been investigated in the past several decades. However, the modulation of solar heat gain has to affect the solar light transmittance in most existing dynamic glazing and window systems. In this work, a new type of dynamic window concept was proposed: reversible photothermal windows based on nanoscale solar infrared-induced plasmonic photothermal effects, which can modulate solar heat, independent of visible light conditions. This study provides the underlying technical characteristics and the thermal and optical features under solar irradiation via experimentally validated analytical models. The reversible photothermal windows exhibit a substantial ability to control solar heat gain coefficient with a range between about 0.2 and 0.6 and a stable visible transmittance of 0.32, A whole-building energy simulation demonstrates the potential for energy savings offered by reversible photothermal windows could reach over 18% in mixed climates, as compared to baseline models built using the most recent energy efficiency standards. This research illustrates technical and numerical evidence and mechanisms for energy savings that will support future research and development of this new dynamic window technology.
AB - A variety of dynamic window and glazing systems with variable solar heat gain control features reacting to seasonal weather conditions and indoor space heating and cooling demands have been investigated in the past several decades. However, the modulation of solar heat gain has to affect the solar light transmittance in most existing dynamic glazing and window systems. In this work, a new type of dynamic window concept was proposed: reversible photothermal windows based on nanoscale solar infrared-induced plasmonic photothermal effects, which can modulate solar heat, independent of visible light conditions. This study provides the underlying technical characteristics and the thermal and optical features under solar irradiation via experimentally validated analytical models. The reversible photothermal windows exhibit a substantial ability to control solar heat gain coefficient with a range between about 0.2 and 0.6 and a stable visible transmittance of 0.32, A whole-building energy simulation demonstrates the potential for energy savings offered by reversible photothermal windows could reach over 18% in mixed climates, as compared to baseline models built using the most recent energy efficiency standards. This research illustrates technical and numerical evidence and mechanisms for energy savings that will support future research and development of this new dynamic window technology.
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U2 - 10.1016/j.enconman.2022.115705
DO - 10.1016/j.enconman.2022.115705
M3 - Article
AN - SCOPUS:85130639552
SN - 0196-8904
VL - 263
JO - Energy Conversion and Management
JF - Energy Conversion and Management
M1 - 115705
ER -
