System for generating hydrogen and method thereof
First Claim
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1. An electrochemical system comprising:
- a plurality of discrete electrochemical cell stacks;
a water-oxygen management system fluidly coupled to said plurality of electrochemical cell stacks; and
, a hydrogen management system fluidly coupled to said plurality of electrochemical cells.
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Abstract
An electrochemical system having a plurality of discrete electrochemical cell stacks is described. The system includes a water-oxygen management system fluidly coupled to the plurality of electrochemical cell stacks and a hydrogen management system fluidly coupled to the plurality of electrochemical cells. A means for ventilating the system and a control system for monitoring and operating said electrochemical system, said control system including a means for detecting abnormal operating conditions and a means for degrading the performance of said electrochemical system in response to said abnormal condition.
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Citations
21 Claims
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1. An electrochemical system comprising:
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a plurality of discrete electrochemical cell stacks;
a water-oxygen management system fluidly coupled to said plurality of electrochemical cell stacks; and
,a hydrogen management system fluidly coupled to said plurality of electrochemical cells. - View Dependent Claims (2, 3, 4)
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5. An electrochemical system comprising:
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a plurality of discrete electrochemical cell stacks; and
,a oxygen-water phase separator fluidly connected to said plurality of electrochemical cell stacks, said phase separator have a first manifold for discharging water to said electrochemical cell stacks and second manifold for receiving water from said electrochemical cell stacks, said first manifold including a plurality of cell stack outlets for discharging water to said electrochemical cells and a guard bed outlet. - View Dependent Claims (6, 7)
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8. A system for automatically calibrating combustible gas sensors comprising:
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a user interface;
a control panel connected to said user interface;
a canister of premixed combustible gas; and
,at least one combustible gas sensor electrically coupled to said control panel. - View Dependent Claims (9)
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10. The system for automatically calibrating combustible gas sensors of claim 10 wherein said valving arrangement is electrically connected to said control panel.
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11. A method for automatically calibrating a combustible gas sensor comprising:
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discharging premixed combustible gas at a predetermined interval;
injecting said premixed combustible gas onto the sensing surface of a combustible gas sensor; and
,measuring the level of combustible gas detected by the sensor. - View Dependent Claims (12)
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13. A system for controlling the output pressure of an electrochemical system, said system comprising:
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At least one electrochemical cell;
a pressure regulator having a set point, said pressure regulator being fluidly coupled to said electrochemical cell;
a pressure sensor fluidly coupled to said pressure regulator between said pressure regulator and said electrochemical cell; and
,a means for controlling output of a electrochemical cell response to said pressure sensor wherein the pressure at said pressure sensor is maintained at a predetermined pressure above said pressure regulator set point. - View Dependent Claims (14)
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15. A method of controlling an electrochemical cell system comprising:
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operating a plurality of electrochemical cells;
supplying electrical power from a plurality of power supplies electrically connected to said plurality of electrochemical cells;
monitoring the operation of said plurality of electrochemical cells and said plurality of power supplies with a control system;
detecting an error state; and
,adjusting operation of said control system to accommodate said detected error state. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification