Improved window energy efficiency with thermal insulating polymer-air multilayer

Rui Kou, Ying Zhong, Qingyang Wang, Jeongmin Kim, Renkun Chen, Yu Qiao

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Polymer-air multilayer (PAM) was developed to reduce the heat loss through windowpane. A PAM consists of a few polymer films separated from each other by air gaps. Thanks to the excellent optical properties of the polymer films, the visible transmittance of PAM is higher than 70%, and the haze is ~1.8%. PAM not only has mechanisms to reduce the conductive and convective heat transfer, but also can obstruct the radiative heat transfer. By mounting a 6 mm-thick 4-layer PAM on the indoor side of a glass pane, the overall U-factor is lowered from 5.8 W/(m2·K) to 2.85 W/(m2·K). PAM is resilient and robust, attractive for the window retrofitting applications.

Original languageEnglish
Article number116890
JournalApplied Thermal Engineering
Volume191
DOIs
StatePublished - 5 Jun 2021

Bibliographical note

Publisher Copyright:
© 2021 Elsevier Ltd

Keywords

  • Energy efficiency
  • Haze
  • Heat transfer
  • Visible transmittance
  • Window coating

Fingerprint

Dive into the research topics of 'Improved window energy efficiency with thermal insulating polymer-air multilayer'. Together they form a unique fingerprint.

Cite this