Abstract: One or more polymeric hollow fiber membranes are pyrolyzed to form one or more hollow fiber CMS membranes by directing a flow of pyrolysis gas through a bundle of polymeric membranes (including a plurality of green, polymeric hollow fiber membranes oriented so that their ends are disposed with ends of the bundle) in a direction perpendicular to a length direction of the bundle in order to sweep away off-gases that are formed during pyrolysis.

Abstract: Entrained metal hydride particle are removed from a flow of hydrogen from a Mg-based hydride storage unit using not only a particle filter but improvements for reducing or eliminating drastic changes in flow. In addition to or alternative to removal of entrained metal hydride particles, methane produced by reaction of hydrogen with steel in a metal hydride system preferably operated above 350° C. is removed downstream of the Mg-based hydride storage unit using an adsorption cartridge, preferably containing activated carbon.

Abstract: Entrained metal hydride particle are removed from a flow of hydrogen from a Mg-based hydride storage unit using not only a particle filter but improvements for reducing or eliminating drastic changes in flow. In addition to or alternative to removal of entrained metal hydride particles, methane produced by reaction of hydrogen with steel in a metal hydride system preferably operated above 350° C. is removed downstream of the Mg-based hydride storage unit using an adsorption cartridge, preferably containing activated carbon.

Abstract: A carbon molecular sieve (CMS) membrane is made by pyrolyzing a polymeric precursor membrane in a pyrolysis atmosphere containing a sulfur-containing compound.

Abstract: Entrained metal hydride particle are removed from a flow of hydrogen from a Mg-based hydride storage unit using not only a particle filter but improvements for reducing or eliminating drastic changes in flow. In addition to or alternative to removal of entrained metal hydride particles, methane produced by reaction of hydrogen with steel in a metal hydride system preferably operated above 350° C. is removed downstream of the Mg-based hydride storage unit using an adsorption cartridge, preferably containing activated carbon.

Abstract: Entrained metal hydride particle are removed from a flow of hydrogen from a Mg-based hydride storage unit using not only a particle filter but improvements for reducing or eliminating drastic changes in flow. In addition to or alternative to removal of entrained metal hydride particles, methane produced by reaction of hydrogen with steel in a metal hydride system preferably operated above 350° C. is removed downstream of the Mg-based hydride storage unit using an adsorption cartridge, preferably containing activated carbon.

Abstract: A carbon molecular sieve (CMS) membrane is made by pyrolyzing a polymeric precursor membrane in a pyrolysis atmosphere containing a sulfur-containing compound.

Abstract: A method of using a hybrid humidifier fuel cell for ensuring adequate humidification of a reactant gas stream in a fuel cell stack, during both steady-state, as well as transient operation. The device provides for improved performance through the use a primary humidification and a secondary humidification.

Abstract: A hybrid humidifier fuel cell for ensuring adequate humidification of a reactant gas stream in a fuel cell stack, during both steady-state, as well as transient operation. The device provides for improved performance through the use a primary humidification and a secondary humidification.

Abstract: An enclosure is filled with a filling gas according to the disclosed method. An enclosure is provided having an interior, a width, a height, a thickness, and fluid filling and exit holes fluidly communicating with the interior. Filling of the enclosure is commenced by directing a flow of the filling gas at a filling flow rate into the fluid filling hole. An oxygen concentration of gas exiting the fluid exit hole is sensed. The filling of the enclosure is stopped when the sensed oxygen concentration reaches a threshold concentration, wherein the threshold oxygen concentration and/or the filling flow rate are selected by a Decision Support Tool based upon the width, height, and/or the thickness.

Abstract: An enclosure is filled with a filling gas according to the disclosed method. An enclosure is provided having an interior, a width, a height, a thickness, and fluid filling and exit holes fluidly communicating with the interior. Filling of the enclosure is commenced by directing a flow of the filling gas at a filling flow rate into the fluid filling hole. An oxygen concentration of gas exiting the fluid exit hole is sensed. The filling of the enclosure is stopped when the sensed oxygen concentration reaches a threshold concentration, wherein the threshold oxygen concentration and/or the filling flow rate are selected by a Decision Support Tool based upon the width, height, and/or the thickness.

Abstract: An enclosure is filled with a filling gas according to the disclosed method. An enclosure is provided having an interior, a width, a height, a thickness, and fluid filling and exit holes fluidly communicating with the interior. Filling of the enclosure is commenced by directing a flow of the filling gas at a filling flow rate into the fluid filling hole. An oxygen concentration of gas exiting the fluid exit hole is sensed. The filling of the enclosure is stopped when the sensed oxygen concentration reaches a threshold concentration, wherein the threshold oxygen concentration and/or the filling flow rate are selected by a Decision Support Tool based upon the width, height, and/or the thickness.

Abstract: An enclosure is filled with a filling gas according to the disclosed method. An enclosure is provided having an interior, a width, a height, a thickness, and fluid filling and exit holes fluidly communicating with the interior. Filling of the enclosure is commenced by directing a flow of the filling gas at a filling flow rate into the fluid filling hole. An oxygen concentration of gas exiting the fluid exit hole is sensed. The filling of the enclosure is stopped when the sensed oxygen concentration reaches a threshold concentration, wherein the threshold oxygen concentration and/or the filling flow rate are selected by a Decision Support Tool based upon the width, height, and/or the thickness.

Abstract: An enclosure is filled with a filling gas according to the disclosed method. An enclosure is provided having an interior, a width, a height, a thickness, and fluid filling and exit holes fluidly communicating with the interior. Filling of the enclosure is commenced by directing a flow of the filling gas at a filling flow rate into the fluid filling hole. An oxygen concentration of gas exiting the fluid exit hole is sensed. The filling of the enclosure is stopped when the sensed oxygen concentration reaches a threshold concentration, wherein the threshold oxygen concentration and/or the filling flow rate are selected by a Decision Support Tool based upon the width, height, and/or the thickness.

Abstract: A feed gas is separated into a CO2-lean stream and a CO2-enriched stream at a CO2 enriching unit. The CO2-enriched gas is fed to a greenhouse to enhance plant growth. The feed gas may include air and/or vent gas from the greenhouse.

Abstract: A gas sensor system includes a membrane electrode assembly including a polymer electrolyte membrane and electrode layers disposed on opposing sides of the membrane, where an anode side of the sensor is defined at first side of the assembly and a cathode side of the sensor is defined at a second side of the assembly . The gas sensor is configured to detect a gas in an environment (e.g., a housing, a pipe, an open environment, etc.) by measuring an open circuit voltage between the anode and the cathode sides of the assembly. The gas sensor provides a rapid response that measures gas concentration in the environment and is further durable, reliable and relatively inexpensive to manufacture.

Abstract: A gas sensor system includes a membrane electrode assembly including a polymer electrolyte membrane and electrode layers disposed on opposing sides of the membrane, where an anode side of the sensor is defined at first side of the assembly and a cathode side of the sensor is defined at a second side of the assembly. The gas sensor is configured to detect a gas in an environment (e.g., a housing, a pipe, an open environment, etc.) by measuring an open circuit voltage between the anode and the cathode sides of the assembly. The gas sensor provides a rapid response that measures gas concentration in the environment and is further durable, reliable and relatively inexpensive to manufacture.