To address the challenge of saving energy in the face of increasingly frequent extreme weather events and variable weather, Pritzker Molecular Engineering researchers designed a building material that can change how much heat it absorbs or emits based on the outside temperature. Researchers at th
Hsu Group created models of how their material could cut energy costs in typical buildings in 15 different U.S. cities, finding that, on average, the material would use less than 0.2% of the building’s total electricity, but could save 8.4% of the building’s annual HVAC energy consumption. Credit: University of Chicago PME – Image courtesy of Hsu Group
“For a long time, most of us have taken our indoor temperature control for granted, without thinking about how much energy it requires,” said Hsu. “If we want a carbon-negative future, I think we have to consider diverse ways to control building temperature in a more energy-efficient way.” “A simple way to think about it is that if you have a completely black building facing the sun, it’s going to heat up more easily than other buildings,” said PME graduate student Chenxi Sui, the first author of the new manuscript.As global warming causes increasingly frequent extreme weather events and variable weather, there is a need for buildings to be able to adapt; few climates require year-round heating or year-round air conditioning.
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