"Stanford University scientists have invented a new kind of paint that can keep
homes and other buildings cooler in the summer and warmer in the winter,
significantly reducing energy use, costs, and greenhouse gas emissions.
Space heating and cooling accounts for about 13 percent of global energy use
and about 11 percent of greenhouse gas emissions. The new paints reduced the
energy used for heating by about 36 percent in experiments using artificial,
cold environments, according to a study published today in the Proceedings of
the National Academy of Sciences
. They reduced the energy needed for cooling
by almost 21 percent in artificial warm conditions. In simulations of a typical
mid-rise apartment building in different climate zones across the United States
with the new paint on exterior walls and roofs, total heating, ventilation, and
air conditioning energy use declined 7.4 percent over the course of a year.
“Energy and emissions from heating are forecast to continue to fall due to
energy efficiency gains, but air conditioning use is rising, especially in
developing economies in a warming world,” said the study’s senior author, Yi
Cui, professor of materials science and engineering, of energy science and
engineering, and of photon science at SLAC National Accelerator Laboratory.
“For both heating and air conditioning we must reduce energy and emissions
globally to meet our zero-emissions goals,” said Cui, who directs the Precourt
Institute for Energy and the Sustainability Accelerator, both within the
Stanford Doerr School of Sustainability. “How to reduce heat exchange between
human living and work spaces and their surroundings is getting more attention,
and new materials for enhanced insulation – like low-emissivity films for
windows – are in demand.”"
Via Future Crunch
*** Xanni ***
Chief Scientist, Xanadu
Partner, Glass Wings
Manager, Serious Cybernetics