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Patent application: Mobile comfort units with PCM

Ben Welter - Monday, May 07, 2018

U.S. patent application 20180120873 (applicant University of Maryland, College Park, Md.):

"Despite otherwise uncomfortable conditions in a surrounding environment, a customizable microenvironment can be created around a user to maintain a comfortable temperature and/or humidity level using a [mobile] comfort unit [100]. For example, the environment may be an office building where conditions are out of the comfortable range to save on energy or for other reasons, a factory/shop environment that is poorly conditioned, or an outdoor location with little to no conditioning. A sensing unit  can monitor biometric and environmental data and can determine a comfort level of the user [300]. The comfort unit can then dynamically respond to the determined comfort level and adjust the microenvironment to improve the user's comfort level. The comfort unit can follow the user as the user moves within the macro-environment, or can otherwise move within the macro-environment to achieve certain functions, such as recharging or spatial shifting of thermal load within the overall macro-environment. ... [The system uses] a phase change material (PCM) that stores heat by changing phase."


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