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    METHODS AND APPARATUSES FOR IMPEDANCE-BASED GAS DETECTION FOR MICROFLUIDIC SYSTEMS
    3.
    发明申请
    METHODS AND APPARATUSES FOR IMPEDANCE-BASED GAS DETECTION FOR MICROFLUIDIC SYSTEMS 有权
    用于微流体系统阻抗气体检测的方法和装置

    公开(公告)号：US20160287772A1

    公开(公告)日：2016-10-06

    申请号：US15085673

    申请日：2016-03-30

    Applicant: Purdue Research Foundation

    Inventor： Pierre Valiorgue ,  Justin A. Weibel ,  Suresh V. Garimella

    IPC: A61M1/16 ,  G01N27/02

    CPC classification number: A61M1/16 ,  A61M1/3626 ,  A61M2205/0244 ,  A61M2205/3317 ,  A61M2205/702 ,  B01L3/5027 ,  B01L2300/0645 ,  B01L2300/0816

    Abstract: Methods and apparatuses for detection of gas bubbles in a microchannel configured for a conductive fluid to flow therethrough. The methods and apparatuses utilize a plate and at least two aligned electrodes embedded within the plate. The plate is configured to be located over the microchannel such that the at least two aligned electrodes are located along a length of the microchannel in the flow direction. Impedance is measured between the electrodes, and the percentage of gas within the fluid flowing through the microchannel is measured based on the measured impedance between the electrodes.

    Abstract translation: 用于检测微通道中的气泡的方法和装置，其构造成用于使导电流体流过其中。 所述方法和装置利用板和嵌入板内的至少两个排列的电极。 板被配置为位于微通道上方，使得至少两个对准的电极沿着流动方向上的微通道的长度定位。 在电极之间测量阻抗，并且基于测量的电极之间的阻抗测量流过微通道的流体内的气体百分比。

    Vehicles, power electronics modules and cooling apparatuses with single-phase and two-phase surface enhancement features
    4.
    发明授权
    Vehicles, power electronics modules and cooling apparatuses with single-phase and two-phase surface enhancement features 有权
    车辆，电力电子模块和具有单相和两相表面增强功能的冷却装置

    公开(公告)号：US08786078B1

    公开(公告)日：2014-07-22

    申请号：US14143377

    申请日：2013-12-30

    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc. ,  Purdue Research Foundation

    Inventor： Matthew Joseph Rau ,  Ercan Mehmet Dede ,  Shailesh N. Joshi ,  Suresh V. Garimella

    IPC: H01L23/34

    CPC classification number: H05K7/2029 ,  H01L23/4735 ,  H01L2924/0002 ,  H05K7/20845 ,  H01L2924/00

    Abstract: Jet-impingement, two-phase cooling apparatuses and power electronics modules having a target surface with single- and two-phase surface enhancement features are disclosed. In one embodiment, a cooling apparatus includes a jet plate surface and a target layer. The jet plate surface includes a jet orifice having a jet orifice geometry, wherein the jet orifice is configured to generate an impingement jet of a coolant fluid. The target layer has a target surface, single-phase surface enhancement features, and two-phase surface enhancement features. The target surface is configured to receive the impingement jet, and the single-phase surface enhancement features and the two-phase enhancement features are arranged on the target surface according to the jet orifice geometry. The single-phase surface enhancement features are positioned on the target surface at regions associated with high fluid velocity, and the two-phase surface enhancement features are positioned on the target surface at regions associated with low fluid velocity.

    Abstract translation: 公开了具有具有单相和两相表面增强特征的目标表面的喷射冲击，两相冷却装置和功率电子模块。 在一个实施例中，冷却装置包括喷射板表面和目标层。 喷射板表面包括具有喷射孔几何形状的喷射孔，其中喷射孔构造成产生冷却剂流体的冲击射流。 目标层具有目标表面，单相表面增强特征和两相表面增强特征。 目标表面被配置为接收冲击射流，并且根据喷射孔几何形状将单相表面增强特征和两相增强特征布置在目标表面上。 单相表面增强特征位于与高流体速度相关联的区域处的目标表面上，并且两相表面增强特征位于与低流体速度相关联的区域处的目标表面上。

    APPARATUS AND METHOD FOR INCREASING BOILING HEAT TRANSFER THEREIN
    5.
    发明申请
    APPARATUS AND METHOD FOR INCREASING BOILING HEAT TRANSFER THEREIN 审中-公开
    增加锅炉热交换器的装置和方法

    公开(公告)号：US20150068712A1

    公开(公告)日：2015-03-12

    申请号：US14383346

    申请日：2013-05-24

    Applicant: PURDUE RESEARCH FOUNDATION

    Inventor： Tae Young Kim ,  Suresh V. Garimella

    IPC: F28F13/18

    CPC classification number: F28F13/187

    Abstract: An apparatus and a method of enhancing boiling heat transfer therein capable of increasing both the critical heat flux and nucleate boiling heat transfer of a working fluid. The method includes placing free particles on a surface so as to define narrow corner gaps and cavities at interfaces between the particles and the surface and heating the surface while the surface is contacted by the working fluid to bring the working fluid to a boil, with the result that bubble nucleation is facilitated and nucleate boiling heat transfer from the surface is increased.

    Abstract translation: 一种增强其中的沸腾传热的装置和方法，其能够增加工作流体的临界热通量和有核沸腾热传递。 该方法包括将游离颗粒放置在表面上，以便在颗粒和表面之间的界面处限定窄的角间隙和空腔，并且在表面与工作流体接触以使工作流体沸腾时加热表面， 导致气泡成核有助于和来自表面的成核沸腾热传递增加。

    MICROFLUIDIC PUMPING BASED ON DIELECTROPHORESIS
    7.
    发明申请
    MICROFLUIDIC PUMPING BASED ON DIELECTROPHORESIS 有权

    公开(公告)号：US20130075259A1

    公开(公告)日：2013-03-28

    申请号：US13668482

    申请日：2012-11-05

    Applicant: Purdue Research Foundation

    Inventor： Dong Liu ,  Suresh V. Garimella

    IPC: F04B19/20

    CPC classification number: F04B19/20 ,  B03C5/005 ,  B03C5/028

    Abstract: This paper presents a microfluidic pumping approach using traveling-wave dielectrophoresis (tw-DEP) of microparticles. Flow is generated directly in the microfluidic devices by inducing electromechanical effects in the fluid using microelectrodes. The fluidic driving mechanisms due to the particle-fluid and particle-particle interactions under twDEP are analyzed, and the induced flow field is obtained from numerical simulations. Experimental measurements of the flow velocity in a prototype DEP micropumping device show satisfactory agreement with the numerical predications.

    Apparatus and method for increasing boiling heat transfer therein
    9.
    发明授权
    Apparatus and method for increasing boiling heat transfer therein 有权

    公开(公告)号：US10309733B2

    公开(公告)日：2019-06-04

    申请号：US14383346

    申请日：2013-05-24

    Applicant: PURDUE RESEARCH FOUNDATION

    Inventor： Tae Young Kim ,  Suresh V. Garimella

    IPC: F28F13/18

    Abstract: An apparatus and a method of enhancing boiling heat transfer therein capable of increasing both the critical heat flux and nucleate boiling heat transfer of a working fluid. The method includes placing free particles on a surface so as to define narrow corner gaps and cavities at interfaces between the particles and the surface and heating the surface while the surface is contacted by the working fluid to bring the working fluid to a boil, with the result that bubble nucleation is facilitated and nucleate boiling heat transfer from the surface is increased.

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