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Method and apparatus for humidification and temp. control of incoming fuel cell process gas

A fuel cell and process gas technology, applied in fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve problems such as slow response, insufficient dynamic controllability, and complex structure

Inactive Publication Date: 2007-05-02
HYDROGENICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the past, these systems tended to be large in size, complex in structure, slow in response, and lacked dynamic controllability.

Method used

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  • Method and apparatus for humidification and temp. control of incoming fuel cell process gas
  • Method and apparatus for humidification and temp. control of incoming fuel cell process gas
  • Method and apparatus for humidification and temp. control of incoming fuel cell process gas

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Embodiment Construction

[0040] Description of preferred embodiments

[0041] Referring first to Figure 1, there is shown a schematic flow diagram of a process gas flow for a process gas. It is to be understood that the invention is applicable to two gases, fuel and oxidant gas, and for this purpose the flow diagram of Figure 1 can be replicated as a flow diagram for two sets of process gas flow lines. The embodiments of Figures 2-6 represent the invention for two process gas lines.

[0042] Referring to Figure 1, both the process gas stream 12 and the steam line 14 are connected to a saturator 16 for increasing the humidity of the gas stream. Steam is provided by a steam source, indicated schematically at 18 . Saturator 16 includes injectors that inject steam into the process gas stream to heat and humidify the process gas stream.

[0043]Line 20 leads from saturator 16, which contains supersaturated process gas. Line 20 enters a first heat exchanger 22 . The first heat exchanger 22 is a flat pl...

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Abstract

A method of humidifying and controlling the temperature of a process gas comprising the steps of: supersaturating the process gas with steam and heating it to a first predetermined temperature; cooling the process gas until it reaches a second predetermined temperature; removing excess condensed water from the process gas stream; and heating the process gas stream until it reaches a third preset temperature. The invention also discloses a device for implementing the method.

Description

field of invention [0001] In general terms, the present invention relates to a method and apparatus for humidification and temperature control of process gases introduced into a fuel cell. More particularly, the present invention relates to humidification systems that provide rapid, precise, and accurate relative humidity and temperature control of process gases introduced into fuel cells. Background of the invention [0002] Fuel cell systems are considered to be the most promising alternatives to conventional power generation technologies due to their low emissions, high efficiency, and ease of operation. The job of a fuel cell is to convert chemical energy into electricity. A proton exchange membrane fuel cell includes: an anode, a cathode, and a selective electrolyte membrane disposed between the two electrodes. In a catalytic reaction, a fuel such as hydrogen is oxidized at the anode into cations (protons) and electrons. The ion exchange membrane facilitates the migr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04H01M8/10
CPCH01M8/04097H01M8/04119H01M8/04014H01M8/04223Y02E60/50H01M8/241H01M8/2457H01M8/0258H01M8/0267
Inventor J·卡格内里R·B·戈帕尔
Owner HYDROGENICS CORP
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