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公开(公告)号：US11874074B2
公开(公告)日：2024-01-16
申请号：US17855965
申请日：2022-07-01
Applicant: Purdue Research Foundation
Inventor： William Travis Horton , Andres Arrieta Diaz , James Edward Braun
CPC classification number: F28F17/00 , F28F3/02 , F28F19/006 , F28F2215/08 , F28F2215/14
Abstract: A shape-morphing fin includes a fixed portion, a multistable portion, a coupling portion, and a vibration source. The multistable portion functions as a negative stiffness element. The multistable portion is selectively movable between a first position and a second position. The movement between first position and the second position is configured to remove the ice formation from the structure. The coupling portion couples the fixed portion to the multistable portion. The vibration source is configured to produce a resonant vibration to engage the movement of the multistable portion from the first position to the second position.
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公开(公告)号：US11821663B2
公开(公告)日：2023-11-21
申请号：US17383177
申请日：2021-07-22
Applicant: Purdue Research Foundation
Inventor： James Edward Braun , Eckhard Achim Groll , William Travis Horton , Orkan Kurtulus , Vatsal Shah
CPC classification number: F25B31/004 , G01F23/0007 , G01K3/005
Abstract: A system for measuring oil circulation ratio in a vapor-compression refrigeration system (VCRS) is provided. The system may include an oil separator configured to receive the refrigerant and oil flow from the low-pressure line of the VCRS and output a oil flow and a refrigerant flow. The system may further include an oil collector configured to receive the separated oil flow provided by the oil separator. A valve may control an oil flow from the oil collector to the low-pressure line. A level sensor may measure oil level in the oil collector. The system may close, in response to the oil being at or less than a first level, the valve to collect oil in the oil collector. The system may open, in response to the oil being at or greater than a second level, the valve to release oil from the oil collector to the low-pressure line.
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3.发明公开公开(公告)号：US20230243525A1
公开(公告)日：2023-08-03
申请号：US17795709
申请日：2021-02-24
Applicant: Purdue Research Foundation
Inventor： Andrew Joseph Fix , James Edward Braun , David Martin Warsinger
CPC classification number: F24F3/147 , B01D53/268 , B01D69/108 , B01D71/80 , F28D21/0015 , F28F21/02 , F28F21/067 , F24F2003/1435
Abstract: A heat exchange system is disclosed which includes an air inlet, a membrane in fluid communication with the air inlet and adapted to have a partial vapor pressure difference across the membrane to thereby drive water vapor flux through the membrane, wherein the membrane is a selective membrane configured to allow passage of water vapor and block passage of air (O2/N2) through the membrane, where the membrane includes a thermally conductive side, a vacuum pump configured to generate the partial vapor pressure difference across the membrane, and a heat exchanger coupled to the thermally conductive side of the membrane configured to provide simultaneous mass and heat transfer.
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公开(公告)号：US20210164713A1
公开(公告)日：2021-06-03
申请号：US17095828
申请日：2020-11-12
Applicant: Purdue Research Foundation
Inventor： James Edward Braun , Eckhard Achim Groll , Davide Ziviani , Akash Patil , Changkuan Liang , Orkan Kurtulus
IPC: F25B45/00
Abstract: The present disclosure relates to a novel portable apparatus suitable for providing an optimized amount of refrigerant to a refrigeration system, and to methods of using the novel portable apparatus.
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公开(公告)号：US12173941B2
公开(公告)日：2024-12-24
申请号：US17829002
申请日：2022-05-31
Applicant: Purdue Research Foundation
Inventor： Eckhard Achim Groll , James Edward Braun , Orkan Kurtulus , Parveen Dhillon , Vatsal Manilal Shah
Abstract: System and methods for oil circulation ratio (OCR) sensing with a suction-line accumulator are provided. The accumulator may include a sensor configured to detect the level of oil. The accumulator may further include a valve which opens when oil is at a high-level and closes when oil is at a low-level. The accumulator may measure a mass flow rate of oil in the vapor compression cycle system based on an amount of time taken to fill a portion of the accumulator. The accumulator may further determine an oil circulation ratio based on the measured time taken to fill the portion of the accumulator. The smart accumulator may output the oil circulation ratio.
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Patent Agency Ranking
公开(公告)号：US20240095769A1
公开(公告)日：2024-03-21
申请号：US18244187
申请日：2023-09-08
Applicant: Purdue Research Foundation
Inventor： James Edward Braun , Julia Michelle Rayz , Panagiota Karava , Ilias Bilionis , Hemanth Devarapalli , Huijeong Kim , Sang Woo Ham , Vanessa Kwarteng , Marlen Promann
IPC: G06Q30/0207 , A63F13/798 , A63F13/80 , G06Q50/06
CPC classification number: G06Q30/0209 , A63F13/798 , A63F13/80 , G06Q50/06
Abstract: A system may provide an eco-feedback and gaming platform for home energy management. The system may generate daily energy scores for a plurality of households. The system may prepare a community energy conservation game in which community conservation goals and participation thresholds are generated. The system may execute the game by receiving time series date from each of the households and rewards the households for participating in achieving the community goal.
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公开(公告)号：US20220026121A1
公开(公告)日：2022-01-27
申请号：US17383177
申请日：2021-07-22
Applicant: Purdue Research Foundation
Inventor： James Edward Braun , Eckhard Achim Groll , William Travis Horton , Orkan Kurtulus , Vatsal Shah
Abstract: A system for measuring oil circulation ratio in a vapor-compression refrigeration system (VCRS) is provided. The system may include an oil separator configured to receive the refrigerant and oil flow from the low-pressure line of the VCRS and output a oil flow and a refrigerant flow. The system may further include an oil collector configured to receive the separated oil flow provided by the oil separator. A valve may control an oil flow from the oil collector to the low-pressure line. A level sensor may measure oil level in the oil collector. The system may close, in response to the oil being at or less than a first level, the valve to collect oil in the oil collector. The system may open, in response to the oil being at or greater than a second level, the valve to release oil from the oil collector to the low-pressure line.
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公开(公告)号：US20240216856A1
公开(公告)日：2024-07-04
申请号：US18394223
申请日：2023-12-22
Applicant: Purdue Research Foundation
Inventor： James Edward Braun , David Elan Martin Warsinger , Songhao Wu , Andrew J Fix
IPC: B01D53/26 , B01D53/04 , B01D53/22 , B01D53/30 , B01D71/02 , B01D71/52 , B01D71/56 , B01D71/80 , H05K5/02
CPC classification number: B01D53/268 , B01D53/0438 , B01D53/228 , B01D53/261 , B01D53/30 , B01D71/024 , B01D71/521 , B01D71/56 , B01D71/80 , H05K5/0212 , H05K5/0215 , B01D2053/221 , B01D2257/80 , B01D2259/40096
Abstract: An enclosure for housing electronics, including a housing portion defining an inner volume, an aperture formed through the housing portion, and a water selective membrane operationally connected to the aperture and positioned to selectively pass water molecules from the inner volume to an oppositely disposed exterior environment to maintain dried air within the inner volume. The enclosure of may further include an electronics package disposed within the inner volume, a Joule heater disposed within the inner volume, a pump operationally connected to the inner volume to urge water molecules across the membrane, a sensor operationally connected to the inner volume, and/or a microprocessor operationally connected to the sensor, to the pump, and/or to the Joule heater.
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公开(公告)号：US20240207780A1
公开(公告)日：2024-06-27
申请号：US18542055
申请日：2023-12-15
Applicant: Purdue Research Foundation
Inventor： David Elan Martin Warsinger , James Edward Braun , Davide Ziviani , Andrew Fix , Jinwoo Oh
CPC classification number: B01D53/268 , B01D53/226 , B01D53/265 , B01D2053/224 , B01D2257/80
Abstract: A method of drying, including the steps of loading a mass to be dried into a drying volume, circulating air from the drying volume into a first membrane module, circulating moist air from the first membrane module to a second membrane module and circulating dried air from the first membrane module to a condenser, circulating moist air from the second membrane module to an evaporator, draining condensate from the evaporator, circulating moist air from the condenser to the evaporator, circulating heated dry air from the evaporator to the condenser, and circulating heated dry air from the condenser to the drying volume. Each respective membrane module defines an enclosure bisected by water permeable membrane for extracting water from moist air circulated therethrough. A method of passive dehumidification using hollow fiber membranes, including a quasi-counter flow effectiveness model, a partial pressure-driven ε-NTU method for mass transfer, sensitivity analysis comparing module geometries and membrane properties, optimized form factors, and scalability design guidelines. A method of active dehumidification in the form of dual-module humidity pump, including two membranes to restrict pressure ratio, a variable-speed water vapor compressor, a variable-speed vacuum pump, three-way valves for reversed air flow, and a backwash mode operation for membrane fouling prevention.
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公开(公告)号：US20230015420A1
公开(公告)日：2023-01-19
申请号：US17855965
申请日：2022-07-01
Applicant: Purdue Research Foundation
Inventor： William Travis Horton , Andres Arrieta Diaz , James Edward Braun
Abstract: A shape-morphing fin includes a fixed portion, a multistable portion, a coupling portion, and a vibration source. The multistable portion functions as a negative stiffness element. The multistable portion is selectively movable between a first position and a second position. The movement between first position and the second position is configured to remove the ice formation from the structure. The coupling portion couples the fixed portion to the multistable portion. The vibration source is configured to produce a resonant vibration to engage the movement of the multistable portion from the first position to the second position.
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