Utilizing solar infrared-induced photothermal heating on building windows in winter

Enhe Zhang, Qiuhua Duan, Yuan Zhao, Julian Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Single-pane windows still account for a large percentage of the US building energy consumption. In this paper, we introduced a new solution incorporating the photothermal effect of metallic nanoparticles (Fe3O4@Cu2-xS) into glazing structures to utilize solar infrared and then enhance the window's thermal performance in winter. Such spectrally selective characteristics of the designed photothermal films were obtained from lab measurements and then integrated into a thermodynamic analytical model. Subsequently, we examined the thermal and optical behaviors of the photothermal single-pane window and compared its overall energy performance with the conventional low-e coated single-pane window, in which typical window properties, dimensions, winter boundary conditions, and solar irradiance were adopted. The numerical analysis results demonstrated that the photothermal window systems could yield 20.4% energy savings relative to the conventional low-e coated windows. This research paves an underlying thermodynamic mechanism for understanding such a nanoscale phenomenon at the architectural scale. From the implementation perspective, the designed photothermal film can be added into the existing single-pane windows for energy-efficient retrofitting purposes.

Original languageEnglish (US)
Title of host publicationAmerican Solar Energy Society National Solar Conference 2020 Proceedings
EditorsPaulette Middleton, Elaine Hebert, Dara Bortman, Robert Foster, Carly Cipolla, Carly Rixham
PublisherInternational Solar Energy Society
Pages18-26
Number of pages9
ISBN (Electronic)9783982040844
StatePublished - 2020
EventAmerican Solar Energy Society National Solar Conference 2020, SOLAR 2020 - Virtual, Online
Duration: Jun 24 2020Jun 25 2020

Publication series

NameAmerican Solar Energy Society National Solar Conference 2020 Proceedings

Conference

ConferenceAmerican Solar Energy Society National Solar Conference 2020, SOLAR 2020
CityVirtual, Online
Period6/24/206/25/20

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment

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