Close  
  • share this

Heat-reflecting film developed to reduce air-con energy cost

/ 04:17 PM November 13, 2018

Image: Massachusetts Institute of Technology

Electricity bills during the summer season tend to be higher than normal because of air-conditioning units running overtime to stave off the heat.

An experimental film developed by engineers from the Massachusetts Institute of Technology (MIT) could change things, thanks to its ability to reflect up to 70 percent of the heat from the sun.

ADVERTISEMENT

The transparent film automatically turns frosty when exposed to heat above 32 degrees Celsius. Anything lower and the film will remain transparent.

The film was developed by MIT professor Nicholas Fang in collaboration with researchers from the University of Hong Kong. Their study was also published in the journal Joule, according to an MIT statement.

FEATURED STORIES

This collaboration took form due to Hong Kong’s goal to reduce energy usage by 40 percent by 2025. The Hong Kong researchers realized that a large portion of the heat in buildings came from the windows. If the heat reflecting could be applied to these windows, they projected up to a 10 percent drop in air-conditioning costs. Furthermore, unlike existing smart windows that turn opaque to block sunlight, the heat-reflecting film requires no additional power to function.

The film works through the micro-particles embedded in the material. When exposed to heat above 32 degrees Celsius, the particles shrink and spread out to form a kind of “fishnet” structure to reflect heat from sunlight.

Fang and the team plan to do more tests and apply the film in other ways to see how far its heat-shielding capabilities can go. If commercialized, this kind of window coating would be a great benefit to tropical countries like the Philippines.  /ra

RELATED STORIES:

WATCH: Astronauts film first 8K ultra HD video in space

PlayStation Classic uses emulator once used for video game piracy

New MacBook Air, Mac Mini uses 100% recycled aluminum

ADVERTISEMENT

Read Next
Don't miss out on the latest news and information.
View comments

Subscribe to INQUIRER PLUS to get access to The Philippine Daily Inquirer & other 70+ titles, share up to 5 gadgets, listen to the news, download as early as 4am & share articles on social media. Call 896 6000.

TAGS: heat wave, smart window, summer, temperature control, window coating
For feedback, complaints, or inquiries, contact us.
newsinfo

Oxford Dictionaries: ‘Toxic’ is word of the year

December 13, 2018 09:48 AM

lifestyle

Tea-loving China warms to coffee’s call

December 13, 2018 09:40 AM

entertainment

Kim Chiu, Vice Ganda go Christmas caroling in the streets

December 13, 2018 09:36 AM

entertainment

Lea Salonga to return to ‘Once on This Island’

December 13, 2018 09:31 AM




© Copyright 1997-2018 INQUIRER.net | All Rights Reserved

We use cookies to ensure you get the best experience on our website. By continuing, you are agreeing to our use of cookies. To find out more, please click this link.