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公开(公告)号：US20190316815A1
公开(公告)日：2019-10-17
申请号：US16381394
申请日：2019-04-11
Applicant: UT-Battelle, LLC
Inventor： James William Klett , Ryan K. Duncan
Abstract: A refrigeration apparatus includes a refrigeration enclosure comprising outer walls defining a hermetic interior refrigeration chamber, and a porous thermally conductive foam insert within the chamber. A desiccant enclosure includes outer walls defining a hermetic interior desiccant chamber, and a desiccant within the desiccant chamber. A fluid conduit establishes a fluid connection between the refrigeration chamber and the desiccant chamber. A control valve controls the flow of a fluid through the fluid conduit. The refrigeration enclosure and an article to be refrigerated can be placed within an outer thermally insulated cooler. A method of refrigerating an article and a human-powered refrigeration system are also disclosed.
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公开(公告)号：US20230347557A1
公开(公告)日：2023-11-02
申请号：US18211784
申请日：2023-06-20
Applicant: UT-Battelle, LLC
Inventor： Diana Hun , Tomonori Saito , James W. Klett , Tristan M. Alexander , Som S. Shrestha , Ryan K. Duncan , Kaushik Biswas , Bingrui Li
CPC classification number: B29C44/505 , B29C44/02 , C08J9/228 , C08K3/04 , C08K3/346 , B29K2101/12 , C08J2329/02
Abstract: A method of forming a polymeric vacuum insulation board is provided, the polymeric vacuum insulation board including a plurality of evacuated, closed-cell pores therein. In one embodiment, the method includes intermixing a polymer with zeolite particles that contain water and extruding the resulting composition under high pressure. During extrusion, water in the zeolite particles evaporates and creates a porous, closed-cell microstructure within a polymer matrix. As the polymer matrix cools and solidifies, water vapor is reabsorbed by the zeolite, which at least partially evacuates the closed-cell pores. In another embodiment, the method includes intermixing a polymer with expandable graphite particles and extruding the resulting composition under high pressure. During extrusion, the expandable graphite particles define evacuated voids. The polymer binder can be selected to include low gas permeance, for example ethylene vinyl alcohol (EvOH) or polyvinylidene chloride (PVDC). In some applications, the polymer can be blended with nano-clays or other additives to further decrease the gas permeance of the vacuum insulation board.
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公开(公告)号：US11090726B2
公开(公告)日：2021-08-17
申请号：US16152612
申请日：2018-10-05
Applicant: UT-BATTELLE, LLC
Inventor： James W. Klett , Amelia M. Elliott , Makayla S. Edwards , Kelsey L. Hedrick , Ryan K. Duncan , Alex G. Hessler , Corson L. Cramer
Abstract: An apparatus and device for building an article by additive manufacturing or 3-D printing. The method includes feeding a supply of particulate slurry to and through a nozzle, such as including an integrated pump, to form a plurality of beads and layers of the slurry on a deposition surface, and ultimately forming a desirable article from the layers of deposited material. The liquid phase of the slurry is desirably removed by heat, and the deposited layers can be sintered or otherwise fused as needed.
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公开(公告)号：US20210154894A1
公开(公告)日：2021-05-27
申请号：US17105727
申请日：2020-11-27
Applicant: UT-Battelle, LLC
Inventor： Diana Hun , Tomonori Saito , James W. Klett , Tristan M. Alexander , Som S. Shrestha , Ryan K. Duncan , Kaushik Biswas , Bingrui Li
Abstract: A method of forming a polymeric vacuum insulation board is provided, the polymeric vacuum insulation board including a plurality of evacuated, closed-cell pores therein. In one embodiment, the method includes intermixing a polymer with zeolite particles that contain water and extruding the resulting composition under high pressure. During extrusion, water in the zeolite particles evaporates and creates a porous, closed-cell microstructure within a polymer matrix. As the polymer matrix cools and solidifies, water vapor is reabsorbed by the zeolite, which at least partially evacuates the closed-cell pores. In another embodiment, the method includes intermixing a polymer with expandable graphite particles and extruding the resulting composition under high pressure. During extrusion, the expandable graphite particles define evacuated voids. The polymer binder can be selected to include low gas permeance, for example ethylene vinyl alcohol (EvOH) or polyvinylidene chloride (PVDC). In some applications, the polymer can be blended with nano-clays or other additives to further decrease the gas permeance of the vacuum insulation board.
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