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公开(公告)号：US20250042821A1
公开(公告)日：2025-02-06
申请号：US18365115
申请日：2023-08-03
Applicant: General Atomics
Inventor： Jiping Zhang , Jonas Opperman , George Jacobsen , Bunsen Wong
IPC: C04B35/573 , C04B35/634 , C04B35/638 , C04B35/65 , C04B38/00
Abstract: A method of manufacturing a target structure is provided. The method includes: obtaining a model structure of an initial material composition having a predetermined geometry and dimensions; applying a slurry mixture into the model structure; and processing the model structure with the slurry mixture inside the model structure to convert the initial material composition of the model structure into a final material composition to obtain the target structure with the final material composition and having a geometry and dimensions that are substantially similar to the predetermined geometry and dimensions of the model structure.
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2.发明申请公开(公告)号：US20220130558A1
公开(公告)日：2022-04-28
申请号：US17079328
申请日：2020-10-23
Applicant: General Atomics
Inventor： Jiping Zhang , Jack Gazza , Gokul Vasudevamurthy , Jonas Opperman , Arthur Blacklock , Austin Travis
Abstract: Fuel rod designs and techniques are provided to encapsulate nuclear fuel pellets in nuclear fuel rods. The tubular cladding in the disclosed fuel rods includes silicon carbide and a metal filler structure formed of a metal that becomes molten during a nuclear reaction of the nuclear fuel pellets and located inside the tubular cladding to include a metal tube that fills in a gap between the nuclear fuel pellets and an interior side wall of the tubular cladding and structured to include a closed metal end cap at one end of the nuclear fuel pellets to leave a space between one end of the interior of the tubular cladding and the closed metal end cap of the metal filler structure as a reservoir.
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公开(公告)号：US20200027580A1
公开(公告)日：2020-01-23
申请号：US16271556
申请日：2019-02-08
Applicant: General Atomics
Inventor： Christian Peter Deck , Jiping Zhang , Christina Back , Jonathan David Sheeder
Abstract: Systems, structures, devices, and fabrication processes for ceramic matrix composites suitable for use in a nuclear reactor environment and other applications requiring materials that can withstand high temperatures and/or highly corrosive environments are disclosed. In one aspect, a ceramic composite structure is provided. The structure comprises a chamber including an external shell and a hollow space inside the external shell. The external shell includes an inner composite layer including a first composite structure, a middle composite layer placed outside of the inner composite layer, the middle composite layer including a second composite structure that is different from the first composite structure, and an outer monolithic layer that has a spatially uniform material property and placed outside of the middle composite layer.
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公开(公告)号：US20250085242A1
公开(公告)日：2025-03-13
申请号：US18466225
申请日：2023-09-13
Applicant: General Atomics
Inventor： Jiping Zhang , Arthur Blacklock
Abstract: The disclosed technology can be implemented to provide a method of determining a thermal conductivity of a sample. The method includes controlling a thermal source to increase a temperature of the thermal source to an elevated temperature above a phase change temperature of a phase change material, placing the sample between and in thermal contact with the phase change material below the phase change temperature and the thermal source to allow a thermal conduction from the thermal source to the phase change material through the sample to increase an initial temperature of the phase change material to the phase change temperature to cause the phase change material to transition from a first phase to a second phase, performing a measurement on at least one of the sample or the phase change material, and determining the thermal conductivity of the sample based on the measurement.
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公开(公告)号：US11881322B2
公开(公告)日：2024-01-23
申请号：US17153855
申请日：2021-01-20
Applicant: General Atomics
Inventor： Jonathan David Sheeder , Jiping Zhang , Christian Peter Deck , Hesham Ezzat Khalifa , Robert Warren Stemke , Brian Stephen Austin , Gokul Vasudevamurthy , Carlos Bacalski , Eric Song , Christina Allyssa Back
CPC classification number: G21C3/07 , C04B37/005 , C04B37/008 , G21C3/10 , G21C3/105 , G21C21/02 , C04B2237/50 , C04B2237/525 , C04B2237/59 , C04B2237/765 , C04B2237/84
Abstract: This patent document relates to systems, structures, devices, and fabrication processes for ceramic matrix composites suitable for use in a nuclear reactor environment and other applications requiring materials that can withstand high temperatures and/or highly corrosive environments. In one exemplary aspect, a method of joining and sealing ceramic structures is disclosed. The method comprises forming a joint of a ceramic structure and an end plug using a sealing material, wherein the end plug has a hole that goes through a top surface and a bottom surface of the end plug; filling the ceramic structure with a desired gas composition through the hole; heating a material into a molten form using a heat source; and directing the material into the hole, wherein the material solidifies to seal the end plug.
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Patent Agency Ranking
公开(公告)号：US11787694B2
公开(公告)日：2023-10-17
申请号：US17402487
申请日：2021-08-13
Applicant: General Atomics
Inventor： Jiping Zhang , Jonathan David Sheeder , Robert Schleicher , Jonas Opperman
CPC classification number: C01B3/24 , B01J19/248 , B01J19/2445 , C01B32/40 , C01B32/50 , B01J2219/00051 , B01J2219/00164 , B01J2219/0218 , C01B2203/0255 , C01B2203/0272 , C01B2203/1235 , C01B2203/148
Abstract: Disclosed are apparatuses, systems, methods, and devices for generating hydrogen pyrolysis of hydrocarbons (methane, diesel, JP8, etc.) in a reactor. The reactor includes multiple channels in parallel. A hydrocarbon flows in a channel and decomposes into hydrogen and carbon. Hydrogen gas flows out and some of the carbon will deposit on the channel wall. Once carbon deposition reaches a predetermined level, the hydrocarbon flow stops, and air or oxygen is caused to flow into the channels to oxidize carbon into carbon monoxide or carbon dioxide and supply heat to neighboring channels. Simultaneously, the hydrocarbon will flow into neighboring channels causing decomposition into hydrogen and carbon in the neighboring channels. When the carbon coating in the neighboring channels reaches a predetermined level, the gas flow is switched again to air or oxygen. In this way, each channel alternates between decomposing the hydrocarbon and oxidizing the deposited carbon.
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公开(公告)号：US20230047197A1
公开(公告)日：2023-02-16
申请号：US17402487
申请日：2021-08-13
Applicant: General Atomics
Inventor： Jiping Zhang , Jonathan David Sheeder , Robert Schleicher , Jonas Opperman
Abstract: Disclosed are apparatuses, systems, methods, and devices for generating hydrogen pyrolysis of hydrocarbons (methane, diesel, JP8, etc.) in a reactor. The reactor includes multiple channels in parallel. A hydrocarbon flows in a channel and decomposes into hydrogen and carbon. Hydrogen gas flows out and some of the carbon will deposit on the channel wall. Once carbon deposition reaches a predetermined level, the hydrocarbon flow stops, and air or oxygen is caused to flow into the channels to oxidize carbon into carbon monoxide or carbon dioxide and supply heat to neighboring channels. Simultaneously, the hydrocarbon will flow into neighboring channels causing decomposition into hydrogen and carbon in the neighboring channels. When the carbon coating in the neighboring channels reaches a predetermined level, the gas flow is switched again to air or oxygen. In this way, each channel alternates between decomposing the hydrocarbon and oxidizing the deposited carbon.
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8.发明申请SYSTEM AND METHOD FOR USING A PULSE FLOW CIRCULATION FOR ALGAE CULTIVATION 审中-公开使用脉冲流动循环进行ALGAE生成的系统和方法公开(公告)号：US20160251608A1
公开(公告)日：2016-09-01
申请号：US15149717
申请日：2016-05-09
Applicant: GENERAL ATOMICS
Inventor： David A. Hazlebeck , Jiping Zhang , Kevin W. Downey , Xiaoxi Wu
CPC classification number: C12M29/12 , A01G33/00 , C12M21/02 , C12M23/02 , C12M23/18 , C12M27/02 , C12M41/44 , C12M41/48 , C12N1/12 , Y02A40/88
Abstract: A device for generating a pulsed flow in a channel containing a circulating algal culture can include a plate that is pivotably mounted on the channel and an activator. A pulsed flow is generated in the channel by first positioning the plate to impede the flow of circulating algal culture and then rotating the plate to a submerged position. The pulsed flow can be employed to counteract the negative effects of bio-fouling on algae cultivation equipment. In another arrangement, a device for generating a pulsed flow in a sloped raceway that is in fluid communication with a sump can include a gate. In different embodiments, the gate can operate as a so-called “pinch gate” or as a so-called “overflow gate.” In another aspect, a variable rate pump, such as a centrifugal pump, a screw pump or an airlift pump, is described for establishing a pulsed flow in a channel.
Abstract translation: 用于在包含循环藻类培养物的通道中产生脉冲流的装置可以包括可枢转地安装在通道上的板和活化剂。 通过首先定位板以阻止循环藻类培养物的流动，然后将板旋转到浸没位置，在通道中产生脉冲流。 脉冲流可用于抵消生物污染对藻类栽培设备的负面影响。 在另一种布置中，用于在与油槽流体连通的倾斜滚道中产生脉冲流的装置可以包括闸门。 在不同的实施例中，门可以作为所谓的“夹紧门”或所谓的“溢流门”运行。另一方面，可变速率泵，例如离心泵，螺杆泵或空气提升泵 描述了用于在通道中建立脉冲流。
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9.发明申请System and Method for Using a Pulse Flow Circulation for Algae Cultivation 审中-公开使用脉冲流循环进行藻类培养的系统和方法公开(公告)号：US20140322805A1
公开(公告)日：2014-10-30
申请号：US14270800
申请日：2014-05-06
Applicant: GENERAL ATOMICS
Inventor： David A. Hazlebeck , Jiping Zhang , Kevin W. Downey , Xiaoxi Wu
IPC: C12M1/00
CPC classification number: C12M29/12 , A01G33/00 , C12M21/02 , C12M23/02 , C12M23/18 , C12M27/02 , C12M41/44 , C12M41/48 , C12N1/12 , Y02A40/88
Abstract: A device for generating a pulsed flow in a channel containing a circulating algal culture can include a plate that is pivotably mounted on the channel and an activator. A pulsed flow is generated in the channel by first positioning the plate to impede the flow of circulating algal culture and then rotating the plate to a submerged position. The pulsed flow can be employed to counteract the negative effects of bio-fouling on algae cultivation equipment. In another arrangement, a device for generating a pulsed flow in a sloped raceway that is in fluid communication with a sump can include a gate. In different embodiments, the gate can operate as a so-called “pinch gate” or as a so-called “overflow gate.” In another aspect, a variable rate pump, such as a centrifugal pump, a screw pump or an airlift pump, is described for establishing a pulsed flow in a channel.
Abstract translation: 用于在包含循环藻类培养物的通道中产生脉冲流的装置可以包括可枢转地安装在通道上的板和活化剂。 通过首先定位板以阻止循环藻类培养物的流动，然后将板旋转到浸没位置，在通道中产生脉冲流。 脉冲流可用于抵消生物污染对藻类栽培设备的负面影响。 在另一种布置中，用于在与油槽流体连通的倾斜滚道中产生脉冲流的装置可以包括闸门。 在不同的实施例中，门可以作为所谓的“夹紧门”或所谓的“溢流门”运行。另一方面，可变速率泵，例如离心泵，螺杆泵或空气提升泵 描述了用于在通道中建立脉冲流。
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10.发明申请公开(公告)号：US20140030796A1
公开(公告)日：2014-01-30
申请号：US13973638
申请日：2013-08-22
Applicant: General Atomics
Inventor： David A. Hazlebeck , Jiping Zhang , Xiaoxi Wu
IPC: C12N1/12
Abstract: A system and method for using a pulse flow to circulate algae in an algae cultivation apparatus are provided. In order to counteract the negative effects of biofouling on algae cultivation equipment, a pulse flow is created to periodically move through an algae cultivation apparatus. The pulse flow will dislodge algae cells adhering to various surfaces of the apparatus, and it will also create turbulence to stir up any algae cells which may have settled onto the bottom of the apparatus. To produce an increased fluid flow rate required to create an effective pulse flow, a sump, which is periodically filled with drawn algal culture from the apparatus, is located at an elevated position above the apparatus. When released, the algal culture travels through a transfer pipe and into the apparatus with gravity causing the algal culture to flow at a very high rate.
Abstract translation: 提供了一种在藻类培养装置中使用脉冲流来循环藻类的系统和方法。 为了抵消生物污染对藻类栽培设备的负面影响，产生脉冲流，以周期性地移动通过藻类栽培设备。 脉冲流将移除附着在装置各个表面上的藻类细胞，并且还会产生湍流以搅动可能已经沉降到装置底部的任何藻类细胞。 为了产生产生有效脉冲流所需的增加的流体流速，从设备周期性地填充有拉脱藻培养物的贮槽位于装置上方的升高位置。 当释放时，藻类培养物通过输送管道传播并进入设备中，导致藻类培养物以非常高的速率流动。
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