This paint is basically creating free air conditioning by reflecting that sunlight and offsetting those heat gains from inside your house, said Joseph Peoples, a Purdue Ph.D. student in mechanical engineering and a co-author of the work. The idea was to create paint that would reflect sunlight away from a building. Now this paint has the potential to cool the exteriors of airplanes, cars or trains. Ioanna Katsamba, another PhD student in mechanical engineering at Purdue, ran computer simulations to understand if the nanoplatelet morphology offers any benefits. Overall, our BaSO4-acrylic paint shows standard figure of merit of 0.77 which is among the highest of radiative cooling solutions while providing great reliability, the convenient paint form, ease of use and the compatibility with commercial paint fabrication process. Purdue Research Foundation Office of Technology Commercialization, An equal access/equal opportunity university, Maintained by Office of Strategic Communications. Although a higher particle concentration is better for making something white, you cant increase the concentration too much. The award recognizes the most exciting creative developments in the connected world, and was presented to Purdue on Monday (March 13) at the 25th annual SXSW Innovation Awards Ceremony in Austin, Texas. This white paint is the result of research building on attempts going back to the 1970s to develop radiative cooling paint as a feasible alternative to traditional air conditioners. April 15, 2021. Ramona Albert, principal of Ramona Albert Architecture. It can also cool surfaces 8 degrees Fahrenheit below their surroundings under strong sunlight during noon hours. It's intended to one day reduce or eliminate the need for air conditioning, according to the researchers who developed it. Your California Privacy Rights / Privacy Policy. This light weight opens the doors to all kinds of applications, said George Chiu, a Purdue professor of mechanical engineering and an expert in inkjet printing. So proud #purdueuniversity is being recognized for its #sustainability #innovation. The team filed an international patent application on this paint formulation through thePurdue Research FoundationOffice of Technology Commercialization. Journalists visiting campus should follow visitor health guidelines. "From a standpoint of saving energy, it will be more useful in warm climates since cooling is needed more. Please contact News Service at purduenews@purdue.edu. | READ MORE. Infrared images of the paint, photos of the researchers measuring the cooling performance of paint samples, b-roll and other multimedia are available via Google Drive. And unlike other cooling methods, this paint radiates all the heat into deep space, which also directly cools down our planet. John Yang explains from West Lafayette, Indiana. (Purdue University photo/John Underwood). Purdue University is a top public research institution developing practical solutions to todays toughest challenges. Price shouldn't be a problem, Ruan says, with a gallon costing almost exactly the same as a gallon of ordinary paint right now, approximately $30 to $40 per gallon. (Purdue University/Joseph Peoples), for this paint formulation have been filed through the, Purdue Research Foundation Office of Technology Commercialization, An equal access/equal opportunity university, Maintained by Office of Strategic Communications. One way buildings can earn that credit is to use materials or devices with an initial solar reflectance of 33 percent at installation or 28 percent over three years, Thompson says. Purdue University, 610 Purdue Mall, West Lafayette, IN 47907, (765) 494-4600, 2015-22 Purdue University | An equal access/equal opportunity university | Copyright Complaints | Maintained by Office of Strategic Communications. This is the kind of thing that we all hope scientists and researchers will help us to discover, opportunities that we didnt know existed for how to live more sustainably.. A figure of merit RC is proposed to compare the cooling performance independent of weather conditions. A new coat of paint is an easy way to freshen up your homes curb appeal. It could eliminate the need for air conditioning. The new formula only needs one 150-micron layer and weighs 80% less while providing nearly the same amount of solar reflectance. BaSO4-acrylic paint is developed with 60% volume concentration to enhance the reliability in outdoor applications, achieving solar reflectance of 98.1% and sky window emissivity of 0.95. Coating buildings with this paint may one day cool them off enough to reduce the need for air conditioning, the researchers say. Scientists created the world's whitest paint. The researchers are working on developing other paint colors that could have cooling benefits. One is the paints very high concentration of a chemical compound called barium sulfate, which is also used to make photo paper and cosmetics white. The new paint reflects 98% of sunlight as. At SXSW, researchers demonstrated the effects of the difference with two model barns sitting under direct halogen lights: one painted in commercial paint and one in Purdues white paint. Committed to affordability and accessibility, Purdue has frozen tuition and most fees at 2012-13 levels, enabling more students than ever to graduate debt-free. Purdue was chosen in the sustainability category from among four finalists that included Purdue; Indianapolis-based Atarraya: Sustainable Shrimp-Farming Tech; The Trees of the Future, based in Hayward, California; and Chicago-based Natures Fynd: Fy Protein. Its hopeful. Now theyve outdone that. The researchers have applied for a patent, and theyre doing additional testing to understand the paints long-term durability and reliability outdoors as they work toward making the paint available to consumers. According to Ruan and his teams models, covering 1% of the Earths surface in their technology could mitigate the total effects of global warming, a fact encouraging them to continue pursuing formulas suitable for surfaces like asphalt and roadways (podcast available online). Ruan says the cost and production process is expected to be similar to commercial paint, which theyve kept in mind from the beginning so that it would be accessible when its ready for market. "For example, using it in the Arctic and Antarctic areas (say, on their roofs) should help cool down the areas and prevent glaciers from melting," Ruan said. In an effort to curb global warming, Purdue University engineers have created the whitest paint yet. Earlier this month, the paint was named winner of the 2023 Gizmodo Science Fair. A few years ago, the scientific and academic communities celebrated the development of Vantablack, a material that could absorb up to 99.9% of visible light. Sarah Kuta Ultra-white could offer the opportunity to do this even more dramatically, allowing us to create a heightened sense of poetry and transformation.Kevin M. Kudo-King, AIA, LEED AP, principal of architecture firm Olson Kundig, The albedo effect negatively impacts the earth's heat balance and climate, but when radiation is reflected rather than absorbed by materials, the reverse can happen. WEST LAFAYETTE, Ind. A new paint developed by researchers at Purdue University is the coolest literally. Technology wins sustainability category for world-changing potential, Professor Xiulin Ruan presents to SXSW attendees in Austin, Texas during the Innovation Awards Finalist Showcase. We will be as accommodating as possible, but you may be asked tostep out or report from another location. The white paint that Purdue researchers created reflects 95.5% sunlight and efficiently radiates infrared heat. Commercially available white paints reflect between 80% and 90% of sunlight, according to lead researcher Prof Xiulin Ruan from Purdue, in West Lafayette, Indiana. In fact, this effervescent hue was so unique the team earned a spot in the Guinness . WEST LAFAYETTE Purdue University is continuing to work on the world's whitest paint. A News Servicerepresentative can facilitate safe access and mayescort you on campus. With the ultra-white paints 98.1 percent solar reflectance, it far exceeds those requirements. The paint is a marked improvement from current heat-rejecting paints on the market. Purdue engineers have created a new "ultra-white paint" with the ability to cool surfaces in response to a warming planet, according to a Purdue News release. Writer, Media contact: Kayla Wiles, 765-494-2432, wiles5@purdue.edu. Campus is open, but the number of people in spaces may be limited. The office is housed in the Convergence Center for Innovation and Collaboration in Discovery Park District at Purdue, adjacent to the Purdue campus. Committed to affordability and accessibility, Purdue has frozen tuition and most fees at 2012-13 levels, enabling more students than ever to graduate debt-free. Typical commercial white paint gets warmer rather than cooler. The newer, thinner formulation can achieve similar cooling with a layer just 0.15 millimeters thick. It absorbs less heat than the heat emitted from the sun. The record appears in the 2022 edition of Guinness World Records.. Soon, it may also help keep your house cool. The paints whiteness also means that the paint is the coolest on record. "Let's say it is a dry sunny day outside and the temperature is 85 degrees Fahrenheit," a surface covered with the paint from Purdue "will be around 75 degrees Fahrenheit," Peoples said. With an appropriate particle size and a broad particle size distribution, BaSO4 nanoparticle film reaches an ultra-high solar reflectance of 97.6% and high sky window emissivity of 0.96. The Guinness World Record holding paint is now thinner, lighter and could soon be available for purchase. How soon until it's on the shelves at a major retailer? Purdue University researchers have created a new formula for the world's whitest paint, making it thinner and lighter. The paint would not only send heat away from a surface, but also away from Earth into deep space where heat travels indefinitely at the speed of light. Cover your roof in that paint, and you could essentially cool your home with much less air conditioning. Paints on the market that are designed to reject heat reflect only 80% to 90% of sunlight and cant make surfaces cooler than their surroundings. Two features make this paint ultra-white: a very high concentration of a chemical compound called barium sulfate also used in photo paper and cosmetics and different particle sizes of barium sulfate in the paint. In this work, we experimentally demonstrate remarkable full daytime sub-ambient cooling performance with both BaSO4 nanoparticle films and BaSO4 nanocomposite paints. Hearst Magazine Media, Inc. All Rights Reserved. This compound, used as the paints filler, allowed the formulation to behave essentially the same as commercial white paint but with greatly enhanced cooling properties. The Purdue Research Foundation Office of Technology Commercialization operates one of the most comprehensive technology transfer programs among leading research universities in the U.S. Services provided by this office support the economic development initiatives of Purdue University and benefit the universitys academic activities through commercializing, licensing and protecting Purdue intellectual property. The key was barium sulfate, which allowed the paint to . Ranked the No. Barium sulfate is affordable; commercial paint costs. What wavelength of sunlight each particle scatters depends on its size, so a wider range of particle sizes allows the paint to scatter more of the light spectrum from the sun.
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