Abstract: Described herein is an air handling unit that includes canopies for compressor fans and exhaust fans located on a top thereof, which canopies provide for noise abatement and a canopy to assist in keeping precipitation out. The canopies further include louvers that can be controlled to provide for even further noise abatement and precipitation control.

Abstract: The invention relates to an environmental noise shielding apparatus in which the internal temperature can be matched to the external temperature by means of a cooling element which is arranged within the environmental noise shielding apparatus. This allows a better sound protection effect.

Abstract: A partition seal portion of a second rotary door is located between an outer door portion and a partition rib. The partition seal member is pressed against a rib tip portion in a door radial direction and moves slidably while being in contact with the rib tip portion in conjunction with a rotation of the second rotary door. Accordingly, an increase of a width in a door axial direction required for a sealing configuration can be suppressed. Therefore, a seal between a side face outlet and a center face outlet can be secured while being preventing a length of a face outlet in the door axial direction from being short.

Abstract: A system for cooling a power distribution unit in a room of a data center includes an air handling system that supplies air to the room or removes air from the room through an opening in the room and an air directing device. The first end of the air directing device couples at the opening in the room. The second end of the air directing device couples with the power distribution unit at one or more openings of an enclosure of the power distribution unit. The air directing device directs air between the opening in the room and the one or more openings of the power distribution unit.

Abstract: A ventilation system for a wide bodied aircraft with pressurization cabin which includes: a compressor apparatus with a heat exchanger for drawing air in from an input reservoir and for generating an excess pressure in at least one output reservoir, several air outlets in the pressurization cabin which are connected to the output reservoir of the compressor apparatus, and at least one suction air intake pipe in the pressurization cabin wherein the volume flow through at least one of the air outlets is adjusted each time by a volume flow control member, as well as to a method for manufacturing a ventilation system of this type.

Abstract: A flow control device has a duct section with a plurality of damper blocking elements, each having a major plane. The damper blocking elements are pivotably connected to the duct section and movable in a range that is limited to ensure that, when the duct section is mounted in a preferred orientation, the damper blocking element major planes always form an angle of at least 45 degrees from the horizontal throughout the range. The range is such that the plurality of damper blocking elements can selectively close and open the duct. The blocking elements can completely close the duct, for example, to block natural convection.

Abstract: An arrangement to reduce refreezing of meltable snow includes a wiper arm configured to wipe the meltable snow from an ambient-facing surface of a window positioned on a vehicle. The arrangement also includes a sensor coupled to the wiper arm that is configured to gather and transmit a parameter on the vehicle and environment. The arrangement also includes a processor that is configured to receiving the parameter, determining refreezability of the meltable snow based on the parameter, and defining an action to be performed by the wiper arm.

Abstract: Systems, devices and methods provide energy recover, modular systems to build and revise commercial kitchen services, closed circuit exhaust, and high efficiency capture and containment of fumes from cooking processes.

Abstract: An air distribution system and method for an air conditioning system in an air vehicle are provided. The air distribution system has lower lobe ducts below a cabin floor of a cabin of the air vehicle. Each lower lobe duct is in fluid communication with a mix manifold coupled to AC packs. The air distribution system further has sidewall riser ducts, outboard manifold ducts, a recirculation air duct, and either recirculation downer ducts, or branch recirculation ducts coupled to the recirculation air duct. The air distribution system has a conditioned air flow, distributed to either the lower lobe ducts, or the lower lobe ducts and then the sidewall riser ducts; has a recirculated air flow, distributed to either the recirculation downer ducts or branch recirculation ducts; and has a mixed air flow distributed to the outboard manifold ducts, and into the cabin.

Abstract: An autarkic monument in an aircraft pressure cabin supplied with the required operating mediums in a decentralized fashion by carrying along these operating mediums in the monument in operating medium reservoirs is provided. Methods for the efficient energy conversion within this autarkic monument are also provided. The efficiency is achieved such that the energy conversion is, based on the operating mediums, optimized with respect to exergo-economic and/or exergo-ecologic aspects, and such that energy conversion processes are adapted to one another if several energy conversion processes take place.

Abstract: An air handling unit has an interior wall configured to selectively retain a removable component of the air handling unit. An air handling unit has an interior wall configured as a drain pan. An air handling unit has an outer skin joined to the interior wall, an insulator disposed between the interior wall and the outer skin, and the interior wall has a mounting channel configured to selectively retain a removable component of the air handling unit.

Abstract: Described is a fail-safe actuating system, comprising an actuator with an actuator housing and an output element. The output element is couplable to a controlled device. The fail-safe actuating system also comprises a biasing element, coupled to the actuator housing, which gets biased by a movement of the actuator housing in a first predefined direction; a locking device that locks the actuator housing for holding the biasing element in a biased state; and a controller configured to operate the actuator in a first operating mode, in which the actuator housing moves with respect to the output element for biasing the biasing element, and in the second operating mode, in which the output element moves with respect to the actuator housing for moving the controlled device.

Abstract: An air replenishing fume hood includes a cabinet, a door set, an air replenishing unit and an air guiding unit. The cabinet has an inner casing defining an operating chamber and having an air inlet and an air outlet. A side of the cabinet includes an operation window. A first air passage is formed between the inner casing and the cabinet. The door set includes an outer door leaf adapted to open or close the operation window, and an inner door leaf adapted to open or close the air inlet. An end of the air replenishing unit extends into an external space via an outdoor tube, and another end of the air replenishing unit is connected to the first air passage via an extension tube. The air guiding unit includes an end connected to the air outlet, and another end extending into the external space or a collection tank.

Abstract: Display cases may include deflectors and fans. The deflectors may alter air currents generated by fans to provide an air current to display portions of the display case. In some implementations, the altered air current may have a first portion with a velocity that is greater than a velocity of a second portion, where the first portion is closer to a display portion of the display case.

Abstract: A refrigerator including a refrigerator main body having a refrigerating chamber therein, a cold air passage duct disposed within the refrigerator main body and provided with a cold air passage therein to discharge the cold air into the refrigerating chamber, a control case coupled to one surface of the cold air discharge duct and having a cold air discharge opening through which the cold air is discharged, and a shutter disposed between the cold air passage duct and the control case, and reciprocally movable in one direction to open and close at least part of the cold air discharge opening, and a knob link rotatably connected to the cold air passage duct to press the shutter such that the shutter is reciprocally movable.

Abstract: An apparatus including a sensor configured to sense total pressure within an inner chamber of a housing, and to sense differential pressure between the inner chamber of the housing and work area outside of the housing; a computer processor configured to receive signals from the sensor based on the total pressure and the differential pressure; and wherein the computer processor controls the rate at which the flapper oscillates based on the total pressure signal from the sensor, to thereby control the direction of flow of air from the inner chamber of the housing through the plurality of openings of the blade, through the plurality of openings of the teeth, for optimum containment with ultra stable vortex inside the chamber; and controls the rate at which exhaust damper modulates based on differential pressure signal to maintain constant face velocity at the apparatus user opening and out an exhaust opening of the housing.

Abstract: A modular air-handling plenum for capable of supporting surgical apparatus or other objects is disclosed. The plenum is usually rectangular, may be formed of sheet metal, and features a truss spanning the width of the plenum to carry the weight of the apparatus. The plenum itself is attached to the ceiling of a room. An air handling component may be included to provide filtered and/or conditioned air in the vicinity of the suspended apparatus, or the plenum may be used strictly as an apparatus support, with no air-conditioning function. An ordinary suspended ceiling may also be mounted in the plenum for continuity with the remainder of the room.

Abstract: A refrigerator including a refrigerator main body having a refrigerating chamber therein, a cold air passage duct provided within the refrigerator main body and having a cold air passage therein to discharge the cold air into the refrigerating chamber, a control case attached to one surface of the cold air discharge duct and having a cold air discharge opening through which the cold air is discharged, and a knob provided between the cold air passage duct and the control case and attached to the control case to be reciprocally movable in one direction, the knob opening and closing at least part of the cold air discharge opening.

Abstract: A ventilation system includes a supply register with a displacement-type diffuser providing a flow of ventilation air at a non-mixing rate that maintains stratification of air in the occupied space. An first exclusive return register is positioned near the ceiling and a second exclusive return register is positioned near the floor. A control system controls the flow of heated or cooled air to the supply register and selectively controls the flow of air into the first or second return registers. During the cooling mode, cooled air flows through the supply register and air is withdrawn only through the first exclusive return register, while in the heating mode warm air flows through the supply register and air is withdrawn only through the second return register.

Abstract: An apparatus and method controls an environmental control system to maintain a differential pressure between a room and one or more adjacent areas by (1) determining a differential pressure error based on the differential pressure and a differential pressure set point using a proportional-integral-derivative (PID) controller; (2) increasing an air change per hour set point whenever one or more first parameters are satisfied; (3) decreasing the air change per hour set point whenever one or more second parameters are satisfied; and (4) sending one or more control signals to the environmental control system that maintain the differential pressure between the room and the one or more adjacent areas by adjusting: (a) the leading airflow to be approximately equal to the air flow change set point multiplied by a volume of the room divided by 60, and (b) the tracking airflow to maintain a volume differential set point.