Highly reflective paint is no-brainer for flat roofs and roof equipment. How the whitest paint is also the coolest. Purdue University is a top public research institution developing practical solutions to todays toughest challenges. Ranked the No. 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. 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. If you were to use this paint to cover a roof area of about 1,000 square feet, we estimate that you could get a cooling power of 10 kilowatts. It is colorless or white orthorhombic crystals with relative molecular mass of 233.4, the relative density of 4.5 (15 ), the melting point of 1580 , and the Refractive index of 1.637. What Is the Coastal Cowgirl Design Trend? The record appears in the 2022 edition of Guinness World Records, available for purchase starting Thursday (Sept. 16). The whitest paint is here -- and it's the coolest. Literally. The research was performed at PurduesFLEX LabandRay W. Herrick LaboratoriesandtheBirck Nanotechnology CenterofDiscovery Park District at Purdue. The original world's whitest paint used nanoparticles of barium sulfate to reflect 98.1% of sunlight, cooling outdoor surfaces more than 4.5C below ambient temperature. (Purdue University image/Joseph Peoples) back to the 1970s to develop radiative cooling paint as a feasible alternative to traditional. Barium sulfate is affordable; commercial paint costs. Super-white paint could cut air conditioning bills by 80 percent (Purdue University/John Underwood) Download Image Technology wins sustainability category for world-changing potential WEST LAFAYETTE, Ind. Researchers hope the paint will be available for purchase from a major retailer in the future. Whitest paint ever reflects 98 per cent of light and could cool homes This lower density, together with the thinness, provides another huge benefit: reduced weight. The six-year study builds on attempts going back to the 1970s to develop radiative cooling paint as a feasible alternative to traditional air conditioners. Did Joanna Gaines Ever Design a Home for J.Lo? The paint . Whats more, air conditioners typically work by removing heat from indoor spaces and pushing it outdoors, a method known as convection. Please contact News Service at purduenews@purdue.edu. Committed to hands-on and online, real-world learning, Purdue offers a transformative education to all. The white paint reflects up to 98.1% of sunlight, an improvement on the previous version's 95.5%. Using high-accuracy temperature reading equipment called thermocouples, the researchers demonstrated outdoors that the paint can keep surfaces 19 degrees Fahrenheit cooler than their ambient surroundings at night. The new paint could eliminate the need for air-conditioning.
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when will purdue white paint be available