Abstract: Methods, systems, and apparatuses for temporarily increasing, on demand, the relative humidity of an area located proximate to a user in environments having lower than ambient relative humidity are provided by integrating a personal humidification circuit into a water delivery circuit to provide a diverted flow of water, and provide a flow of water vapor to a user, and returning the relative humidity-enhanced environment to a predetermined relative humidity by purging the environment.

Abstract: Systems and methods for limiting infiltration of cabin air into the flight deck of an aircraft, where the systems include at least one upper nozzle disposed adjacent to and above an outer upper edge of a flight deck doorway and directed downwardly, and at least one lower nozzle disposed adjacent to and below an outer lower edge of the flight deck doorway and directed upwardly; a conduit system to deliver air from a flight deck air supply to the upper and lower nozzles; and an airflow controller configured to provide sufficient air flow from the flight deck air supply to the upper and lower nozzles to create directional airstreams across the gaps between the closed flight deck door and the upper and lower edges of the flight deck doorway, so that the airstreams limit infiltration of cabin air into the flight deck via the gaps.

Abstract: A test cage and method for testing a gap formed between a wall and an insulation layer in a vehicle. The test cage includes first and second end walls and a sidewall to form an interior space. Openings extend through one or more of the first and second end walls and the sidewall. The openings are configured to allow air flow through the interior space. Two or more ports extend through the first end wall and are in communication with the interior space. Each of the ports comprises an inner end at the interior space with the inner ends spaced apart within the interior space and also spaced away from the second end wall. Hoses can be connected to the ports to provide for inputting a gas and/or testing the air within the gap.

Abstract: A test cage and method for testing a gap formed between a wall and an insulation layer in a vehicle. The test cage includes first and second end walls and a sidewall to form an interior space. Openings extend through one or more of the first and second end walls and the sidewall. The openings are configured to allow air flow through the interior space. Two or more ports extend through the first end wall and are in communication with the interior space. Each of the ports comprises an inner end at the interior space with the inner ends spaced apart within the interior space and also spaced away from the second end wall. Hoses can be connected to the ports to provide for inputting a gas and/or testing the air within the gap.

Abstract: Methods, systems, and apparatuses for temporarily increasing, on demand, the relative humidity of an area located proximate to a user in environments having lower than ambient relative humidity are provided by integrating a personal humidification circuit into a water delivery circuit to provide a diverted flow of water, and provide a flow of water vapor to a user, and returning the relative humidity-enhanced environment to a predetermined relative humidity by purging the environment.

Abstract: An air drying system including a compressor coupled to a first air inlet through which moist air is received, a first turbine in fluid communication with the compressor and coupled to a first air outlet through which dry air is expelled, and a second turbine coupled to a second air inlet and a second air outlet and being driven, at least in part, by an air flow caused by a pressure differential between the second air inlet and the second air outlet, where the second turbine is operably coupled to the compressor and the first turbine by a drive mechanism so that rotation of the second turbine drives rotation of the compressor and the first turbine.

Abstract: Systems and methods for limiting infiltration of cabin air into the flight deck of an aircraft, where the systems include at least one upper nozzle disposed adjacent to and above an outer upper edge of a flight deck doorway and directed downwardly, and at least one lower nozzle disposed adjacent to and below an outer lower edge of the flight deck doorway and directed upwardly; a conduit system to deliver air from a flight deck air supply to the upper and lower nozzles; and an airflow controller configured to provide sufficient air flow from the flight deck air supply to the upper and lower nozzles to create directional airstreams across the gaps between the closed flight deck door and the upper and lower edges of the flight deck doorway, so that the airstreams limit infiltration of cabin air into the flight deck via the gaps.

Abstract: An air drying system including a compressor coupled to a first air inlet through which moist air is received, a first turbine in fluid communication with the compressor and coupled to a first air outlet through which dry air is expelled, and a second turbine coupled to a second air inlet and a second air outlet and being driven, at least in part, by an air flow caused by a pressure differential between the second air inlet and the second air outlet, where the second turbine is operably coupled to the compressor and the first turbine by a drive mechanism so that rotation of the second turbine drives rotation of the compressor and the first turbine.

Abstract: A pressure relief system is provided and a corresponding method for relieving pressure from a duct routing a gas from a compressor to a load utilizing the same. According to one aspect, a pressure relief assembly, located near the load, and independent of the primary load compressor pressure relief valve, for use with a duct includes a cover, first and second chambers, and a piston. The piston provides a moveable wall between the chambers and is coupled to the cover. As gas from the duct enters the two chambers, the configuration of the chambers provides for a pressure differential that moves the piston and the corresponding cover. This movement transitions the cover from a closed configuration that seals the duct to an open configuration that allows gas within the duct to escape.

Abstract: A pressure relief system is provided and a corresponding method for relieving pressure from a duct routing a gas from a compressor to a load utilizing the same. According to one aspect, a pressure relief assembly, located near the load, and independent of the primary load compressor pressure relief valve, for use with a duct includes a cover, first and second chambers, and a piston. The piston provides a moveable wall between the chambers and is coupled to the cover. As gas from the duct enters the two chambers, the configuration of the chambers provides for a pressure differential that moves the piston and the corresponding cover. This movement transitions the cover from a closed configuration that seals the duct to an open configuration that allows gas within the duct to escape.