Improved window energy efficiency with thermal insulating polymer-air multilayer

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

doi:10.1016/j.applthermaleng.2021.116890

Improved window energy efficiency with thermal insulating polymer-air multilayer

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

Division of Nanotechnology

Research output: Contribution to journal › Article › peer-review

24 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 language	English
Article number	116890
Journal	Applied Thermal Engineering
Volume	191
DOIs	https://doi.org/10.1016/j.applthermaleng.2021.116890
State	Published - 5 Jun 2021

Bibliographical note

Publisher Copyright:
© 2021 Elsevier Ltd

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Energy efficiency
Haze
Heat transfer
Visible transmittance
Window coating

Access to Document

10.1016/j.applthermaleng.2021.116890

Cite this

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title = "Improved window energy efficiency with thermal insulating polymer-air multilayer",

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 \textasciitilde{}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.",

keywords = "Energy efficiency, Haze, Heat transfer, Visible transmittance, Window coating",

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doi = "10.1016/j.applthermaleng.2021.116890",

language = "English",

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TY - JOUR

T1 - Improved window energy efficiency with thermal insulating polymer-air multilayer

AU - Kou, Rui

AU - Zhong, Ying

AU - Wang, Qingyang

AU - Kim, Jeongmin

AU - Chen, Renkun

AU - Qiao, Yu

PY - 2021/6/5

Y1 - 2021/6/5

N2 - 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.

AB - 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.

KW - Energy efficiency

KW - Haze

KW - Heat transfer

KW - Visible transmittance

KW - Window coating

UR - https://www.scopus.com/pages/publications/85103724646

U2 - 10.1016/j.applthermaleng.2021.116890

DO - 10.1016/j.applthermaleng.2021.116890

M3 - Article

AN - SCOPUS:85103724646

SN - 1359-4311

VL - 191

JO - Applied Thermal Engineering

JF - Applied Thermal Engineering

M1 - 116890

ER -

Improved window energy efficiency with thermal insulating polymer-air multilayer

Abstract

Bibliographical note

UN SDGs

Keywords

Access to Document

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