![]() Credit: Wyss Institute at Harvard UniversityĮngineers and designers at the Wyss Institute and the Harvard Graduate School of Design have developed foldable polymer-based radiant cooling devices that are fabricated by lamination with integrated microfluidic water-circuits. Our Solution This 2D computational flow simulation demonstrates that the increased surface area and angled geometry of Origami-inspired Radian Cooling devices increases the rate of convective heat exchange, compared to radiant cooling devices with a planar arrangement of cooling elements. This means that radiant cooling devices are limited by the size of their typically flat radiator surfaces. The larger the radiator surface, the closer to room temperature the water can be in order to achieve efficient cooling. Importantly, the energy savings radiant cooling devices can provide depend on the temperature to which the water supply needs to be cooled. ![]() Their main component often is a large radiator surface with integrated copper or polymer tubing that transfers heat to and from a closed water circuit through which chilled water flows, absorbing heat from the radiator. Radiant cooling devices that cool their environments by absorbing the infrared radiation emitted by all objects around them (radiation), and via direct contact with the surrounding air (convection) have potential to help save energy. Moreover, the IEA estimates that, without action to address energy efficiency, global energy demands for space cooling will more than triple by 2050.Įnergy saving retrofits hold great potential for significant reductions in energy consumption. electricity consumption and in the commercial sector, which includes commercial and institutional buildings, about 12% of the total electricity and 4% of total U.S. The electricity used for cooling in the residential sector amounted to about 16% of total electricity consumption and 6% of total U.S. residential and commercial sectors amounted to about 10% of total U.S. Energy Information Administration (EIA) estimated that in 2020, electricity use for cooling the interior of buildings (space cooling) by the U.S. In its Annual Energy Outlook 2021, the U.S. Credit: Wyss Institute at Harvard University The Problem Origami-inspired Radiant Cooling devices are fabricated from polymers using printed circuit board and pop-up book manufacturing techniques and have an integrated microfluidic water-circuit.
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