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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. 

 


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.

Mitsubishi Electric Cooling & Heating’s new H2i R2-Series heat pumps provide year-round comfort, even in extreme climates. With 100% heating capacity down to 0° F outdoor ambient and simultaneous heating and cooling down to -4° F, our hyper-heating systems bring highly responsive multi-zone comfort to your projects, regardless of climate zone.

http://news.mehvac.com/hhlaunch/


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.

Mitsubishi Electric Cooling & Heating’s new H2i R2-Series heat pumps provide year-round comfort, even in extreme climates. With 100% heating capacity down to 0° F outdoor ambient and simultaneous heating and cooling down to -4° F, our hyper-heating systems bring highly responsive multi-zone comfort to your projects, regardless of climate zone.

http://news.mehvac.com/hhlaunch/


 
03/05/2015

Small and medium-sized buildings will soon have automation options.

03/04/2015

Form will aid lenders in assessing value of sustainable design.

03/03/2015

Expanded choices offer climate-friendly solutions.

03/02/2015

New technology could slash consumption up to 30%.

02/27/2015

Design is low-cost and green while providing more energy storage.

02/26/2015

LEED, IgCC, Standard 189.1 will work in harmony.

02/25/2015

Standard 189.1 seeks to expand renewable energy definition.

02/24/2015

Efficient construction techniques improve housing affordability.

02/23/2015

Guidance to improve energy efficiency of all aspects of data center operation.

02/20/2015

Model shows new technology could keep buildings standing after disasters.

02/19/2015

Expected to produce 550 megawatts of renewable energy.

02/18/2015

Best practices for infection prevention linked to hand irritation.

02/17/2015

State policies may not cut greenhouse gas emissions.

02/16/2015

New materials could cut initial costs for solar technology.

02/13/2015

Fannie Mae recognizes value of sustainable design.

02/12/2015

Localized technology could dramatically cut HVAC energy usage.

02/11/2015

Government energy consumption continues its decline.

02/10/2015

Study shows renewable option has economic potential.

02/09/2015

Proposed guideline would standardize collision deterrence testing.

02/06/2015

Illinois repeats as top state for green-certified buildings.

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