公开(公告)号：US06516486B1

公开(公告)日：2003-02-11

申请号：US10056765

申请日：2002-01-25

申请人： Sunil S. Mehendale ,  Steven R. Falta ,  Frederick Vincent Oddi

发明人： Sunil S. Mehendale ,  Steven R. Falta ,  Frederick Vincent Oddi

IPC分类号： F25B3902

CPC分类号： F28F9/027 ,  F28D1/0333 ,  F28D2021/0085

摘要： An evaporator for an HVAC system is disclosed wherein an upstream to downstream airflow is directed through the evaporator for inducing a transfer of thermal energy between the airflow and a fluid circulating in the evaporator. The evaporator includes at least two cores adjacent one to the other. Each of the cores defines a core inlet and a core outlet and the cores are arranged such that the core inlet of the first core is positioned at an opposite end from the inlet of the second core. Correspondingly, the outlet of the first core is positioned at an opposite end from the outlet of the second core. The evaporator inlet is in fluid communication with the first core inlet and the second core inlet and the outlet is in fluid communication with the first core outlet and the second core outlet.

摘要翻译： 公开了一种用于HVAC系统的蒸发器，其中上游到下游气流被引导通过蒸发器，用于在气流和在蒸发器中循环的流体之间引起热能传递。 蒸发器包括至少两个彼此相邻的芯。 每个芯部限定芯部入口和芯出口，并且芯被布置成使得第一芯的芯入口位于与第二芯的入口相反的一端。 相应地，第一芯的出口位于与第二芯的出口相反的一端。 蒸发器入口与第一芯入口和第二芯入口流体连通，出口与第一芯出口和第二芯出口流体连通。

公开(公告)号：US10247471B2

公开(公告)日：2019-04-02

申请号：US16032204

申请日：2018-07-11

申请人： James R. Handley ,  Brian S. Powell ,  Henry E. Howard ,  Vijayaraghavan S. Chakravarthy ,  Maulik R. Shelat ,  Steven R. Falta

发明人： James R. Handley ,  Brian S. Powell ,  Henry E. Howard ,  Vijayaraghavan S. Chakravarthy ,  Maulik R. Shelat ,  Steven R. Falta

IPC分类号： F25J3/04 ,  F25J3/02

摘要： An argon reflux condensation system and method in which a plurality of once-through condensers are connected to an argon column of an air separation plant to condense argon-rich vapor streams for production of reflux to the argon column. Condensation of the argon-rich vapor streams is brought about through indirect heat exchange with crude liquid oxygen streams that partially vaporize and are introduced into a lower pressure column of the plant for further refinement. The flow rate of the crude liquid oxygen streams are sensed and controlled at locations in the air separation plant where the crude liquid oxygen is in a liquid state and in proportion to the size of the once-through heat exchangers. Prior to flowing into the once-through condensers, the partially vaporized crude oxygen stream enters a phase separator which separates the crude oxygen vapor from the crude liquid oxygen. The separated crude oxygen vapor bypasses the once-through condensers and is mixed with the vaporized oxygen stream that exits the one-through condensers. Feed stream flow rate to the argon column is controlled in response to air flow rate to the plant and product flow rate is controlled in response to the feed stream flow rate to the argon column.

公开(公告)号：US20180328655A1

公开(公告)日：2018-11-15

申请号：US16032204

申请日：2018-07-11

申请人： James R. Handley ,  Brian S. Powell ,  Henry E. Howard ,  Vijayaraghavan S. Chakravarthy ,  Maulik R. Shelat ,  Steven R. Falta

发明人： James R. Handley ,  Brian S. Powell ,  Henry E. Howard ,  Vijayaraghavan S. Chakravarthy ,  Maulik R. Shelat ,  Steven R. Falta

IPC分类号： F25J3/04 ,  F25J3/02

CPC分类号： F25J3/04672 ,  F25J3/0285 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04715 ,  F25J3/048 ,  F25J3/04848 ,  F25J2250/02 ,  F25J2250/20

摘要： An argon reflux condensation system and method in which a plurality of once-through condensers are connected to an argon column of an air separation plant to condense argon-rich vapor streams for production of reflux to the argon column. Condensation of the argon-rich vapor streams is brought about through indirect heat exchange with crude liquid oxygen streams that partially vaporize and are introduced into a lower pressure column of the plant for further refinement. The flow rate of the crude liquid oxygen streams are sensed and controlled at locations in the air separation plant where the crude liquid oxygen is in a liquid state and in proportion to the size of the once-through heat exchangers. Prior to flowing into the once-through condensers, the partially vaporized crude oxygen stream enters a phase separator which separates the crude oxygen vapor from the crude liquid oxygen. The separated crude oxygen vapor bypasses the once-through condensers and is mixed with the vaporized oxygen stream that exits the one-through condensers. Feed stream flow rate to the argon column is controlled in response to air flow rate to the plant and product flow rate is controlled in response to the feed stream flow rate to the argon column.

公开(公告)号：US10082333B2

公开(公告)日：2018-09-25

申请号：US14754801

申请日：2015-06-30

申请人： James R. Handley ,  Brian S. Powell ,  Henry E. Howard ,  Vijayaraghavan S. Chakravarthy ,  Maulik R. Shelat ,  Steven R. Falta

发明人： James R. Handley ,  Brian S. Powell ,  Henry E. Howard ,  Vijayaraghavan S. Chakravarthy ,  Maulik R. Shelat ,  Steven R. Falta

IPC分类号： F25J3/04 ,  F25J3/02

CPC分类号： F25J3/04672 ,  F25J3/0285 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04715 ,  F25J3/048 ,  F25J3/04848 ,  F25J2250/02 ,  F25J2250/20

摘要： An argon reflux condensation system and method in which a plurality of once-through condensers are connected to an argon column of an air separation plant to condense argon-rich vapor streams for production of reflux to the argon column. Condensation of the argon-rich vapor streams is brought about through indirect heat exchange with crude liquid oxygen streams that partially vaporize and are introduced into a lower pressure column of the plant for further refinement. The flow rate of the crude liquid oxygen streams are sensed and controlled at locations in the air separation plant where the crude liquid oxygen is in a liquid state and in proportion to the size of the once-through heat exchangers. Prior to flowing into the once-through condensers, the partially vaporized crude oxygen stream enters a phase separator which separates the crude oxygen vapor from the crude liquid oxygen. The separated crude oxygen vapor bypasses the once-through condensers and is mixed with the vaporized oxygen stream that exits the one-through condensers. Feed stream flow rate to the argon column is controlled in response to air flow rate to the plant and product flow rate is controlled in response to the feed stream flow rate to the argon column.

公开(公告)号：US09080938B2

公开(公告)日：2015-07-14

申请号：US13560352

申请日：2012-07-27

申请人： Jun Cai ,  Daniel C. Di Fiore ,  Steven R. Falta ,  Sergio E. Garcia ,  Carol A. Galskoy

发明人： Jun Cai ,  Daniel C. Di Fiore ,  Steven R. Falta ,  Sergio E. Garcia ,  Carol A. Galskoy

IPC分类号： G01L27/00 ,  H01M8/04 ,  G01N27/00

CPC分类号： G01N27/007 ,  H01M8/04 ,  H01M8/0438 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/04425 ,  H01M8/04649 ,  H01M8/04664 ,  H01M8/04686 ,  H01M8/04753 ,  Y02E60/50

摘要： A system and method for detecting an anode pressure sensor failure in a fuel cell system. The system and method include a controller that sets an initial minimum anode pressure sensor value and an initial maximum anode pressure sensor value. The controller determines a desired time interval for sampling anode pressure measurements and determines a total number of samples of anode pressure measurements to be collected by the controller from an anode pressure sensor. The controller also compares a pressure difference between the initial or a measured minimum anode pressure and the initial or a measured maximum anode pressure to a predetermined pressure difference threshold and sets a pressure sensor fault if the pressure difference between the initial or measured minimum anode pressure and the initial or maximum anode pressure is less than the predetermined pressure difference threshold.

摘要翻译： 一种用于检测燃料电池系统中的阳极压力传感器故障的系统和方法。 该系统和方法包括设置初始最小阳极压力传感器值和初始最大阳极压力传感器值的控制器。 控制器确定用于采样阳极压力测量值的期望时间间隔，并确定由控制器从阳极压力传感器收集的阳极压力测量的样本总数。 控制器还将初始或测量的最小阳极压力与初始或测量的最大阳极压力之间的压力差与预定的压力差阈值进行比较，并设定压力传感器故障，如果初始或测量的最小阳极压力与 初始或最大阳极压力小于预定的压力差阈值。

公开(公告)号：US09028989B2

公开(公告)日：2015-05-12

申请号：US13152844

申请日：2011-06-03

申请人： Yan Zhang ,  Steven R. Falta ,  Steven D. Burch ,  Glenn W. Skala

发明人： Yan Zhang ,  Steven R. Falta ,  Steven D. Burch ,  Glenn W. Skala

IPC分类号： H01M12/00 ,  H01M2/36 ,  H01M10/50 ,  H01M8/06 ,  H01M8/04 ,  H01M8/00 ,  G05D11/00 ,  F16K49/00 ,  F16L53/00 ,  B01D47/00 ,  F22D1/28 ,  F02M25/10 ,  F02M25/00 ,  C10K1/00 ,  C10J1/00 ,  B01F3/04 ,  F28C1/00 ,  H01M8/10

CPC分类号： H01M8/04141 ,  H01M2008/1095 ,  Y02E60/50 ,  Y10T137/2516 ,  Y10T137/2521 ,  Y10T137/265 ,  Y10T137/6497

摘要： A fuel cell system includes a water vapor transfer unit and a fluid flow distribution feature, the water vapor transfer unit including a first plate having a plurality of first flow channels for receiving a flow of a first fluid therein, and a second plate having a plurality of second flow channels for receiving a flow of a second fluid therein. The fluid flow distribution feature is configured to control at least one of a volume of flow of the first fluid through the first flow channels and a volume of flow of the second fluid through the second flow channels, wherein at least one of a flow distribution of the first fluid across the first plate and a flow distribution of the second fluid across the second plate is varied.

摘要翻译： 燃料电池系统包括水蒸汽转移单元和流体分配特征，所述水蒸汽转移单元包括具有多个用于接收第一流体流的第一流动通道的第一板和具有多个第一流体的第二板 的用于接收第二流体流的第二流动通道。 流体流动分配特征被配置为控制通过第一流动通道的第一流体的流量的体积和通过第二流动通道的第二流体的流量中的至少一个，其中至少一个流动分布 穿过第一板的第一流体和穿过第二板的第二流体的流动分布是变化的。

公开(公告)号：US20140026633A1

公开(公告)日：2014-01-30

申请号：US13560352

申请日：2012-07-27

申请人： Jun Cai ,  Daniel C. Di Fiore ,  Steven R. Falta ,  Sergio E. Garcia ,  Carol A. Galskoy

发明人： Jun Cai ,  Daniel C. Di Fiore ,  Steven R. Falta ,  Sergio E. Garcia ,  Carol A. Galskoy

IPC分类号： G01L27/00 ,  H01M8/06

CPC分类号： G01N27/007 ,  H01M8/04 ,  H01M8/0438 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/04425 ,  H01M8/04649 ,  H01M8/04664 ,  H01M8/04686 ,  H01M8/04753 ,  Y02E60/50

摘要： A system and method for detecting an anode pressure sensor failure in a fuel cell system. The system and method include a controller that sets an initial minimum anode pressure sensor value and an initial maximum anode pressure sensor value. The controller determines a desired time interval for sampling anode pressure measurements and determines a total number of samples of anode pressure measurements to be collected by the controller from an anode pressure sensor. The controller also compares a pressure difference between the initial or a measured minimum anode pressure and the initial or a measured maximum anode pressure to a predetermined pressure difference threshold and sets a pressure sensor fault if the pressure difference between the initial or measured minimum anode pressure and the initial or maximum anode pressure is less than the predetermined pressure difference threshold.

摘要翻译： 一种用于检测燃料电池系统中的阳极压力传感器故障的系统和方法。 该系统和方法包括设置初始最小阳极压力传感器值和初始最大阳极压力传感器值的控制器。 控制器确定用于采样阳极压力测量值的期望时间间隔，并确定由控制器从阳极压力传感器收集的阳极压力测量的样本总数。 控制器还将初始或测量的最小阳极压力与初始或测量的最大阳极压力之间的压力差与预定的压力差阈值进行比较，并设定压力传感器故障，如果初始或测量的最小阳极压力与 初始或最大阳极压力小于预定的压力差阈值。

公开(公告)号：US08387441B2

公开(公告)日：2013-03-05

申请号：US12636276

申请日：2009-12-11

申请人： Steven R. Falta ,  Steven G. Goebel ,  Daniel C. Di Fiore ,  Ralf Senner

发明人： Steven R. Falta ,  Steven G. Goebel ,  Daniel C. Di Fiore ,  Ralf Senner

IPC分类号： G01M3/26

CPC分类号： G01M3/26 ,  G01F1/34 ,  G01F1/363 ,  G01F1/40 ,  G01F1/72 ,  H01M8/04388 ,  H01M8/04753 ,  H01M2008/1095

摘要： A method for determining the amount of fuel flow from a high pressure gas tank to the anode side of a fuel cell stack through pulsed injector. The anode sub-system pressure is measured just before the injector pulse and just after injector pulse and a difference between the pressures is determined. The difference between the pressures, the volume of the anode sub-system, the ideal gas constant, the anode sub-system temperature, the fuel consumed from the reaction in the fuel cell stack during the injection event and the fuel cross-over through membranes in the fuel cells of the fuel cell stack are used to determine the amount of hydrogen gas injected by the injector.

摘要翻译： 一种通过脉冲喷射器确定从高压气罐到燃料电池堆的阳极侧的燃料流量的方法。 在喷射器脉冲之前和刚好在喷射器脉冲之后测量阳极子系统压力，并确定压力之间的差。 在喷射事件期间，压力，阳极子系统的体积，理想气体常数，阳极子系统温度，燃料电池堆中的反应消耗的燃料和通过膜的燃料交叉之间的差异 在燃料电池堆的燃料电池中用于确定由喷射器喷射的氢气的量。

公开(公告)号：US07867642B2

公开(公告)日：2011-01-11

申请号：US11553724

申请日：2006-10-27

申请人： Steven R. Falta

发明人： Steven R. Falta

IPC分类号： H01M8/04

CPC分类号： H01M8/04007 ,  H01M8/04246 ,  H01M8/0432 ,  H01M8/04552 ,  H01M8/04611 ,  H01M8/0491 ,  H01M2008/1095

摘要： A method of starting a fuel cell stack in subzero conditions that minimizes start times while avoiding cell reversal by using an iterative model to determine the optimal current density time profile for startup.

摘要翻译： 一种在零度条件下起动燃料电池堆的方法，其通过使用迭代模型来确定启动的最佳电流密度时间曲线，从而最小化开始时间，同时避免电池反向。

公开(公告)号：US20090186253A1

公开(公告)日：2009-07-23

申请号：US12016014

申请日：2008-01-17

申请人： Thomas A. Trabold ,  Steven R. Falta

发明人： Thomas A. Trabold ,  Steven R. Falta

IPC分类号： H01M8/02

CPC分类号： H01M8/0265 ,  H01M8/026 ,  H01M2008/1095

摘要： A fuel cell that includes a flow field plate having flow channels, where the flow channels include one enlarged stability flow channel for each set of a predetermined number of smaller flow channels. The stability channel provides a higher volume of flow therethrough, which prevents the accumulation of water at low loads.

摘要翻译： 一种燃料电池，其包括具有流动通道的流场板，其中流动通道包括用于每组预定数量的较小流动通道的一个放大的稳定性流动通道。 稳定通道提供更高体积的流动，这防止了低负荷下的水积聚。