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公开(公告)号：US20220307778A1
公开(公告)日：2022-09-29
申请号：US17705693
申请日：2022-03-28
Inventor： Evelyn N. Wang , Lin Zhao , Bikram Bhatia , Xiangyu Li , Arny Leroy , Kyle Wilke , Lenan Zhang , Jeffrey Youngblood , Rodney Trice , Chad T. Wilson , Olivia Brandt , Rodrigo Orta Guerra
Abstract: Devices and methods for fabrication of a multiscale porous high-temperature heat exchanger for high-temperature and high-pressure applications are disclosed. The heat exchanger can include a core with macrochannels formed in a checkerboard pattern to facilitate alternative flow of working fluid having hot and cold temperatures between adjacent macrochannels. Each macrochannel can include a two-dimensional microchannel array that further distributes flow throughout the heat exchanger to enhance heat transfer and mechanical strength without significant pressure drop penalty. The heat exchanger can further include a header integrated therewith to distribute working fluid flowing through the heat exchanger through the outlets such that it flows evenly therethrough. Methods of fabricating heat exchangers of this nature are also disclosed.
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公开(公告)号：US20240368411A1
公开(公告)日：2024-11-07
申请号：US18774135
申请日：2024-07-16
Applicant: Purdue Research Foundation
Inventor： Xiulin Ruan , Xiangyu Li , Zhifeng Huang , Joseph Arthur Peoples
Abstract: Metal-free compositions for solar-reflective infrared-emissive coatings and methods of producing the same. The paints are suitable for reducing the temperatures of objects below ambient temperatures between sunset and sunrise (nighttime) and part or full daytime (between sunrise and sunset) when such objects are subjected to direct sunlight. Such a solar-reflective infrared-emissive paint may include a particle-polymer composite containing particles in a polymeric matrix, wherein the particles are nanoparticles or microparticles, the paint does not contain a metallic component, and the paint exhibits high reflectance for the solar spectrum wavelengths of 0.3 to 3 micrometers and high emissivity for wavelengths of 8 to 13 micrometers.
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公开(公告)号：US11988471B2
公开(公告)日：2024-05-21
申请号：US17705693
申请日：2022-03-28
Inventor： Evelyn N. Wang , Lin Zhao , Bikram Bhatia , Xiangyu Li , Arny Leroy , Kyle Wilke , Lenan Zhang , Jeffrey Youngblood , Rodney Trice , Chad T. Wilson , Olivia Brandt , Rodrigo Orta Guerra
CPC classification number: F28F9/02 , F28D9/0062 , F28F21/04
Abstract: Devices and methods for fabrication of a multiscale porous high-temperature heat exchanger for high-temperature and high-pressure applications are disclosed. The heat exchanger can include a core with macrochannels formed in a checkerboard pattern to facilitate alternative flow of working fluid having hot and cold temperatures between adjacent macrochannels. Each macrochannel can include a two-dimensional microchannel array that further distributes flow throughout the heat exchanger to enhance heat transfer and mechanical strength without significant pressure drop penalty. The heat exchanger can further include a header integrated therewith to distribute working fluid flowing through the heat exchanger through the outlets such that it flows evenly therethrough. Methods of fabricating heat exchangers of this nature are also disclosed.
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公开(公告)号：US20210403726A1
公开(公告)日：2021-12-30
申请号：US17282958
申请日：2019-10-03
Applicant: Purdue Research Foundation
Inventor： Xiulin Ruan , Xiangyu Li , Zhifeng Huang , Joseph Arthur Peoples
Abstract: Metal-free compositions for solar-reflective infrared-emissive coatings and methods of producing the same. The paints are suitable for reducing the temperatures of objects below ambient temperatures between sunset and sunrise (nighttime) and part or full daytime (between sunrise and sunset) when such objects are subjected to direct sunlight. Such a solar-reflective infrared-emissive paint may include a particle-polymer composite containing particles in a polymeric matrix, wherein the particles are nanoparticles or microparticles, the paint does not contain a metallic component, and the paint exhibits high reflectance for the solar spectrum wavelengths of 0.3 to 3 micrometers and high emissivity for wavelengths of 8 to 13 micrometers.
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