New compound could become ‘cool blue’ for energy efficiency inbuildings – China Aquasplash Water Park

The compound, which has now received patent approval, wasdiscovered about three years ago almost by chance, as OSUscientists were studying some materials for their electricalproperties. Its potential use to help reduce heat absorption on the roofs andwalls of buildings — which is an evolving field of considerableinterest in warm regions where cooling is a major expense — addsanother role for the material, which is now being considered forvarious commercial applications. “This pigment has infrared heat reflectivity of about 40percent, which is significantly higher than most blue pigments nowbeing used,” said Mas Subramanian, an OSU professor ofchemistry who discovered the compound. “The more we discover about the pigment, the more interestingit gets,” Subramanian said. “We already knew it hadadvantages of being more durable, safe and fairly easy to produce.Now it also appears to be a new candidate for energyefficiency.” “Cool roofing,” in which paints are used to reflectsignificant portions of the sun’s heat and thereby reduce coolingcosts, is an important new trend in “green” constructionand energy efficiency, experts say. Water Sprayground

Such reflective coatings alsoare more aesthetically pleasing, have less thermal degradation,reduce the “heat island” effect in cities, lower peakenergy demand, and reduce air pollution due to lower energy use andpower plant emissions. “We’re seeking licensing partners for this invention rightnow,” said Mary Phillips, associate director of the Office forCommercialization and Corporate Development at OSU. “Webelieve it can contribute to new energy efficiency solutions aroundthe world.” In general, any darker color of the type often used for roofs,houses, automobiles or other applications will tend to absorb moreheat. But some compounds, like the one discovered at OSU, have darktones but also the ability to reflect heat in the infraredspectrum, which is responsible for most of the heat energy absorbedfrom sunlight. The material created at OSU, researchers say, is probably the bestblue pigment humans have produced since ancient times — going backto efforts by the Egyptians, the Han dynasty in China and Mayancultures. China Aquasplash Water Park

Blue pigments have been sought through history but oftenhad serious drawbacks, such as decaying quickly, being toxic,costly or carcinogenic. In research funded by the National Science Foundation, OSUscientists discovered this material by coincidence while they werelooking for something else. China Family Resorts Water Slides


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