Science· 2021Q1
Scalable thermochromic smart windows with passive radiative cooling regulation
- 1,003citations
- Q1SCImago
- 2021year
Short summary
Thermochromic smart windows using tungsten-doped vanadium dioxide passively turn off radiative cooling below 22°C, enabling year-round energy savings across most US climates.
AI-generated from the title and abstract; the full text is not read.
Key points
- Thermochromic smart windows use tungsten-doped vanadium dioxide for passive radiative cooling control.
- The material switches off radiative cooling below 22°C via a temperature-dependent metal-insulator transition.
- This passive regulation enables year-round energy savings, unlike conventional radiative cooling.
- Simulations suggest broad applicability across most US climate zones.
AI-generated from the title and abstract; the full text is not read.
Abstract
A passive turnoff Passive radiative cooling technology uses the infrared atmospheric window to allow outer space to be a cold sink for heat. However, this effect is one that is only helpful for energy savings in the warmer months. Wang et al . and Tang et al . used the metal-insulator transition in tungsten-doped vanadium dioxide to create window glass and a rooftop coating that circumvents this problem by turning off the radiative cooling at lower temperatures. Because the transition is simply temperature dependent, this effect also happens passively. Model simulations suggest that these materials would lead to energy savings year-round across most of the climate zones in the United States. —BG
The authors' abstract, as published at the source. Science, 2021 · DOI ↗
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Field: Civil and Structural Engineering
Civil and Structural EngineeringEngineering