07/11/2013

Keep Buildings Cool in Full Sunlight

 
A new device designed by Stanford University researchers could cool buildings even in full sunlight.

A new cooling structure designed by a Stanford research team can cool structures even under direct sunlight, according to a profile of the device in Nano Letters.

The device is highly reflective, keeping it from heating up and defeating the purpose of cooling. It also uses the same mechanism as the greenhouse effect to direct thermal radiation away from itself – specifically, it efficiently emits thermal radiation within a tightly defined wavelength range that can escape through the atmosphere. Light outside that range is reflected back to the earth, trapping heat and raising the temperature below.

Previous studies focused on using radiative cooling at night to mitigate the greenhouse effect. However, peak cooling demand occurs in the daytime, which posed considerable challenges for previous researchers.

"We've taken a very different approach compared to previous efforts in this field," said Aaswath Raman, a doctoral candidate in Fan's lab and a co-first-author of the paper. "We combine the thermal emitter and solar reflector into one device, making it both higher performance and much more robust and practically relevant. In particular, we're very excited because this design makes viable both industrial-scale and off-grid applications."

The device achieves a net cooling power of over 100 watts per square meter, roughly the same amount of power generated by the average commercially available solar panel. The passive technology requires no energy to operate and could someday replace existing solar panels that feed electricity to HVAC systems, the research team says. 

 


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Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.

 

Add highly responsive multi-zone comfort to any building project, in any climate. Our CITY MULTI H2i R2- and Y-Series VRF systems give you flexibility to fit the needs of any building. Enjoy 100% heating capacity at 0°F outdoor ambient, and 85% heating capacity at -13°F outdoor ambient.  For more information, log on to www.mitsubishipro.com


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.

 

Replace core drilling with Connectrac In-Carpet and On-Floor Wireways, the proven connectivity solution in open interior spaces of all kinds. These elegant low-profile wireways are great for AV / telecom connectivity wherever it’s needed.

 


 
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