An exhaust moisture removal system for an electric generation system including: a sorbent wheel; an interchanger; a hydrogen evaporator including an exhaust portion; and an exhaust outflow stream passageway configured to convey an exhaust from a hydrogen fuel cell of the electric generation system through a first pass and then through a second pass, the second pass being located downstream of the first pass, wherein the first pass of the exhaust outflow stream passageway passes through the sorbent wheel, then through the interchanger, and then through the hydrogen evaporator, and wherein the second pass of the exhaust outflow stream passageway passes through the hydrogen evaporator, then through the interchanger, and then through the sorbent wheel.

An integrated gas management device (GMD) for a fuel cell comprises a gas-to-gas humidifier for transferring water from a second gas to a first gas; a heat exchanger attached to a first end of the humidifier core for cooling the first gas; and/or a water separator attached to a second end of the humidifier core for removing liquid water from the second gas. The GMD may optionally comprise a thermal isolation plate between the heat exchanger and the first end of the humidifier core. The GMD further comprises a bypass line to allow the first gas to bypass the humidifier. The first gas may comprise cathode charge air and the second gas may comprise cathode exhaust.

Disclosed is a device for decreasing a concentration of hydrogen exhausted from a fuel cell through an exhaust line. The device includes: a first housing connected to the exhaust line and having an exhaust gas moving path and an air inlet formed therein; a pumping part installed in the first housing and sucking air through the air inlet; a second housing coupled to the first housing and having an air diluting part and a diluted gas moving path formed therein, the air diluting part being connected to the exhaust gas moving path and the diluted gas moving path being connected to the air diluting part; and a nozzle member spraying the air introduced into the air inlet to the air diluting part while being rotated

The present invention relates to a humidifier for a fuel cell, the humidifier comprising: a humidifying module for humidifying a dry gas, supplied from the outside, by using a wet gas discharged from a fuel cell stack; and a first cap coupled to one end of the humidifying module. The humidifying module includes: a mid-case; and at least one cartridge disposed in the mid-case and accommodating a plurality of hollow fiber membranes. The humidifier for a fuel cell further includes a first packing member which is air-tightly coupled to at least one end of the humidifying module through mechanical assembly so that the first cap is in fluid communication with only the hollow fiber membranes.

A high temperature plate heat exchanger with low chromium rejection for fluids above 550 C. and a method of cooling a gas is suggested. The heat exchanger comprises a plurality of heat transfer plates made of a chromium-containing alloy, particularly high-temperature stainless steel or Ni-based chromium-containing alloy and having two heat transfer surfaces. The plurality of heat transfer plates comprise at least on one heat transfer surface of the heat transfer plates a chromium absorber coating comprising porous titanium dioxide over at least a first portion of the length of said heat transfer surface. The chromium absorber coatings of two adjacent heat transfer plates are facing each other.

A device includes a container, an oxygen-to-water selectively permeable membrane supported by the container, a chamber disposed in the container to hold a hydrogen generating fuel, and a proton exchange membrane fuel cell supported within the container between the oxygen-to-water selectively permeable membrane and the chamber.

A gas separator has an adsorbent, a circulation-passage constituting member, a circulator, an adsorption facilitator, and a desorption facilitator. The adsorbent adsorbs or desorbs carbon dioxide, and the adsorbent is made of a liquid. The circulation-passage constituting member therein has a space that defines a circulation passage in which the adsorbent flows. The circulator circulates the adsorbent in the space. The adsorption facilitator facilitates an adsorption of carbon dioxide to the adsorbent filling the space. The desorption facilitator facilitates a desorption of carbon dioxide from the adsorbent filling the space.

A vehicle including a battery pack including a plurality of battery cells; a pipe in communication with the battery pack, and configured to collect a flow of gases that are generated by the plurality of battery cells; and a battery gas treatment system in communication with the pipe that is configured to treat the flow of gases that are generated by the plurality of battery cells, wherein the battery gas treatment system is configured to treat the flow of gases by at least one of cooling the flow of gases and chemically treating the flow of gases to eliminate or at least reduce a number of various chemical species from the flow of gases.

An apparatus for treating hydrogen gas includes an inner canning member configured to define a movement flow path through which the hydrogen gas flows, a catalyst provided in the internal canning member and configured to reduce a concentration of the hydrogen gas flowing along the internal canning member, and an external canning member surrounding a periphery of the internal canning member and configured to define an air guide flow path to guide air to an outlet end portion of the movement flow path along an external surface of the internal canning member, and a mixing flow path in which the hydrogen gas including passed through the catalyst is mixed with the air, obtaining an advantageous effect of effectively reducing a concentration of hydrogen gas.

A membrane humidifier for a fuel cell, the membrane humidifier includes, a humidifier housing, and a bundle of hollow fiber membranes which has both ends potted by potting members and accommodated in the humidifier housing, wherein a bypass flow tube having a plurality of pores is also potted by the potting members in addition to the bundle of hollow fiber membranes, such that a part of dry air from an air blower is bypassed from the outside to the inside of the potting member through the bypass flow tube, and thereafter, the dry air is injected into an internal space of the humidifier housing where the bundle of hollow fiber membranes is present.