Switchable Kirigami Structures as Window Envelopes for Energy-Efficient Buildings.

ABSTRACT: Efficient regulation of thermal radiation is an effective way to conserve energy consumption of buildings. Because windows are the least energy-efficient part of buildings, their thermal radiation regulation is highly demanded, especially in the changing environment, but is still a challenge. Here, by employing a kirigami structure, we design a variable-angle thermal reflector as a transparent envelope of windows for their thermal radiation modulation. The envelope can be easily switched between heating and cooling modes by loading different pre-stresses, which endow the envelope windows with the ability of temperature regulation, and the interior temperature of a building model can be reduced by ~3.3 °C under cooling mode and increased by ~3.9 °C under heating mode in the outdoor test. Th

SUBMITTER: Yin H 

PROVIDER: S-EPMC10202178 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature