公开(公告)号：US10159941B2

公开(公告)日：2018-12-25

申请号：US13882783

申请日：2011-11-01

申请人： Nyunt Wai Maung ,  Ee Kwong Tan ,  Fook-Sin Wong ,  Adrian Yeo ,  W. B. Krantz ,  Anthony Gordon Fane ,  Siang Tze Victor Sim

发明人： Nyunt Wai Maung ,  Ee Kwong Tan ,  Fook-Sin Wong ,  Adrian Yeo ,  W. B. Krantz ,  Anthony Gordon Fane ,  Siang Tze Victor Sim

IPC分类号： B01D65/08 ,  B01D65/10 ,  B01D61/12 ,  B01D61/14

摘要： A membrane sensor for detecting fouling, the membrane sensor comprising a first chamber having an inlet and an outlet; a second chamber having an outlet; only one membrane, the membrane being disposed between the first chamber and the second chamber for allowing fluid to permeate the membrane from the first chamber to the second chamber; a first pressure transducer configured for obtaining a first pressure upstream of the membrane; a second pressure transducer configured for obtaining a second pressure downstream of the membrane; and a resistance regulator configured for adjusting the second pressure.

公开(公告)号：US09618441B2

公开(公告)日：2017-04-11

申请号：US13695251

申请日：2011-05-02

申请人： Alan R. Greenberg ,  William B. Krantz ,  Elmira Kujundzic ,  Adrian Yeo ,  Seyed Saeid Hosseini

发明人： Alan R. Greenberg ,  William B. Krantz ,  Elmira Kujundzic ,  Adrian Yeo ,  Seyed Saeid Hosseini

IPC分类号： G01N15/08 ,  G01N5/04

CPC分类号： G01N15/088 ,  G01N5/04 ,  G01N15/08 ,  G01N15/0806 ,  G01N15/0893 ,  G01N2015/086

摘要： A method for determination of pore-size distribution in a porous material called evapo porometry (EP) is capable of determining pore sizes from approximately the nanometer scale up to the micron scale. EP determines the pore size based on the evaporative mass loss at constant temperature from porous materials that have been pre-saturated with either a wetting or non-wetting volatile liquid. The saturated porous material is placed in an appropriate test cell on a conventional microbalance to measure liquid mass loss at a constant temperature as a function of time. The mass-loss rate is then related to the pore-size distribution. The microbalance permits measuring the mass as a function of time. The slope of the mass versus time curve is the evaporation rate. The evaporation rate is related to the vapor pressure at the interface between the liquid in the porous material and the ambient gas phase. The vapor pressure in turn is related to the pore diameter.

公开(公告)号：US20130042670A1

公开(公告)日：2013-02-21

申请号：US13695251

申请日：2011-05-02

申请人： Alan R. Greenberg ,  William B. Krantz ,  Elmira Kujundzic ,  Adrian Yeo ,  Seyed Saeid Hosseini

发明人： Alan R. Greenberg ,  William B. Krantz ,  Elmira Kujundzic ,  Adrian Yeo ,  Seyed Saeid Hosseini

IPC分类号： G01N15/08

CPC分类号： G01N15/088 ,  G01N5/04 ,  G01N15/08 ,  G01N15/0806 ,  G01N15/0893 ,  G01N2015/086

摘要： A method for determination of pore-size distribution in a porous material called evapo porometry (EP) is capable of determining pore sizes from approximately the nanometer scale up to the micron scale. EP determines the pore size based on the evaporative mass loss at constant temperature from porous materials that have been pre-saturated with either a wetting or non-wetting volatile liquid. The saturated porous material is placed in an appropriate test cell on a conventional microbalance to measure liquid mass loss at a constant temperature as a function of time. The mass-loss rate is then related to the pore-size distribution. The microbalance permits measuring the mass as a function of time. The slope of the mass versus time curve is the evaporation rate. The evaporation rate is related to the vapor pressure at the interface between the liquid in the porous material and the ambient gas phase. The vapor pressure in turn is related to the pore diameter.

摘要翻译： 用于测定称为蒸发孔隙率（EP）的多孔材料中的孔径分布的方法能够确定从大约纳米级至微米级的孔径。 EP基于已经用润湿或非润湿挥发性液体预饱和的多孔材料在恒定温度下基于蒸发质量损失来确定孔径。 将饱和多孔材料放置在常规微量天平上的合适的测试池中，以在恒定温度下测量作为时间的函数的液体质量损失。 然后质量损失率与孔径分布有关。 微量天平允许测量质量作为时间的函数。 质量对时间曲线的斜率是蒸发速率。 蒸发速率与多孔材料中的液体与环境气相之间的界面处的蒸气压有关。 蒸气压又与孔径有关。

公开(公告)号：US20130240440A1

公开(公告)日：2013-09-19

申请号：US13882783

申请日：2011-11-01

申请人： Nyunt Wai Maung ,  Ee Kwong Tan ,  Fook-Sin Wong ,  Adrian Yeo ,  W.B. Krantz ,  Anthony Gordon Fane ,  Siang Tze Victor Sim

发明人： Nyunt Wai Maung ,  Ee Kwong Tan ,  Fook-Sin Wong ,  Adrian Yeo ,  W.B. Krantz ,  Anthony Gordon Fane ,  Siang Tze Victor Sim

IPC分类号： B01D65/08

CPC分类号： B01D65/08 ,  B01D61/12 ,  B01D61/14 ,  B01D65/102 ,  B01D2311/04 ,  B01D2311/06 ,  B01D2311/14

摘要： A membrane sensor for detecting fouling, the membrane sensor comprising a first chamber having an inlet and an outlet; a second chamber having an outlet; only one membrane, the membrane being disposed between the first chamber and the second chamber for allowing fluid to permeate the membrane from the first chamber to the second chamber; a first pressure transducer configured for obtaining a first pressure upstream of the membrane; a second pressure transducer configured for obtaining a second pressure downstream of the membrane; and a resistance regulator configured for adjusting the second pressure.

摘要翻译： 一种用于检测污垢的膜传感器，所述膜传感器包括具有入口和出口的第一室; 具有出口的第二室; 只有一个膜，膜设置在第一室和第二室之间，用于允许流体从第一室渗透到第二室; 构造成用于获得膜上游的第一压力的第一压力换能器; 构造成用于获得膜下游的第二压力的第二压力换能器; 以及电阻调节器，被配置为调节第二压力。