Abstract: A damper assembly includes a frame having an inner surface and a protrusion extending inwardly relative to the inner surface, a damper blade coupled to the frame and configured to transition between an open position and a closed position, and a latch coupled to the inner surface of the frame. The latch is configured to deform to facilitate transition of the damper blade between the open position and the closed position and to expand to capture and retain the damper blade in the closed position, the latch includes a tab segment configured to move toward the protrusion during deformation of the latch and to move away from the protrusion during expansion of the latch, and a distal end of the tab segment overlaps with a thickness of the protrusion.

Abstract: A device for managing a temperature according to an embodiment of the present disclosure includes a conversion controller that estimates an indoor set temperature based on a temperature of air returned from a target zone and an operating time of a state converter, and controls a state conversion amount of the state converter by comparing the estimated indoor set temperature with the temperature of the returned air, and a heat exchanger for varying the temperature of the returned air and providing the air whose temperature is varied to the target zone.

Abstract: A booth comprising a plurality of walls, a roof, and a ventilation system, the walls and the roof enclosing a space to be ventilated by the ventilation system, and the ventilation system comprising: at least one fan for providing an airflow, an air inlet through which air enters the space to be ventilated from outside the booth, and an air outlet through which air exits the space to be ventilated to outside the booth, wherein the air outlet comprises a first air outlet aperture and a second air outlet aperture and an air outlet channel extending between the first and second air outlet apertures, wherein the air outlet channel is provided at least partly inside one of the walls.

Abstract: One or more embodiments of a burner panel for a metallurgical furnace is described herein. The burner panel has a body having a top surface, a bottom surface, a left surface, a right surface, and a front surface surrounding an interior burner area. A spray-cool system disposed in the interior area. A burner tube at least partially disposed in the interior burner area and extends into the front surface. The burner tube is configured to accept a burner.

Abstract: A ventilation and air conditioning system includes: an outdoor air supply fan; an exhaust fan; and a system controller to control operations of the outdoor air supply fan and the exhaust fan. The system controller includes: a link controller; an exhaust air volume receiver; a disconnection determinator; and a disconnected state supply air controller. The link controller controls the outdoor air supply fan and the exhaust fan in a linked manner. The exhaust air volume receiver receives, from the exhaust fan, an exhaust air volume signal indicating an exhaust air volume of the exhaust fan. The disconnection determinator determines a disconnected state where the exhaust air volume receiver fails to receive the exhaust air volume signal. The disconnected state supply air controller controls the outdoor air supply fan at a predetermined air volume when the disconnected determinator determines the disconnected state.

Abstract: The subject matter described in this specification is directed to systems and methods for dissipating heat from electronic components supporting autonomous vehicle systems. In particular, the specification describes how the electronic components can be positioned in a duct through which conditioned cabin air can be drawn to convectively dissipate heat from the electronic components.

Abstract: A diffuser assembly includes a first blade pivotably coupled to a housing and configured to rotate about a first axis and includes second blade pivotably coupled to the housing and configured to rotate about a second axis. The diffuser assembly includes a linkage mechanism coupled to the first blade and the second blade and configured to transition between a first configuration and a second configuration. In the first configuration, the linkage mechanism is configured to induce rotation of the second blade about the second axis in a first direction in response to rotation of the first blade about the first axis in the first direction. In the second configuration, the linkage mechanism is configured to induce rotation of the second blade about the second axis in a second direction, opposite the first direction, in response to rotation of the first blade about the first axis in the first direction.

Abstract: A ventilation outlet for a ventilation system of a motor vehicle for directionally supplying a passenger compartment of the motor vehicle with an air flow flowing in a flow direction, having a ventilation duct for passing the air flow, with a duct wall for circumferentially delimiting the ventilation duct and a ventilation duct outlet opening for discharging the air flow into the passenger compartment, and a first air guide louver arranged in the ventilation duct and having a louver head portion and a louver head portion for deflecting the air flow, wherein the first air guide louver is held pivotably relative to the ventilation duct about a pivot axis between a first position and a second position, wherein the pivot axis runs through the louver head portion and is arranged adjacent to the ventilation duct outlet opening.

Abstract: Provided is a hot water supply tank including: a case forming an appearance of the hot water supply tank; a heating container accommodating a fluid and having an inner side treated with anticorrosive; a heater installed on an outer side of the heating container and transferring heat to the fluid; and a heat insulator interposed between the case and the heater, wherein in a predetermined volume of the heating container, a ratio at which a performance of the heater to transfer heat (hereinafter, heat transfer performance) is maximized (hereinafter, optimum ratio) among the ratios of side height to bottom diameter of the heating container (hereinafter, aspect ratios) is determined by whether the heater is installed on the bottom as well as side of the heating container, and determined based on an area of the heating container occupied by the heater (hereinafter, heat transfer area).

Abstract: This disclosure describes an on-board oxygen generating system (OBOGS) using open loop control. An example OBOGS includes a concentrator comprising at least two beds and a controller. Each bed has a valve to pneumatically couple the bed between a supply gas source and a vent; The controller receives at least one input signal from at least one sensor aboard an aircraft, and determines a predicted oxygen concentration output from the at least two beds into the based on the received input signals. The controller controls the valves of the at least two beds based on the determined predicted oxygen concentration to adjust charge/vent ratios of the at least two beds.

Abstract: Provided is a front wing apparatus which includes a plurality of front wings, a lower spacer which is rotatably coupled to lower portions of the front wings and laterally connects the lower portions of the front wings, an upper spacer which is rotatably coupled to upper portions of the front wings and laterally connects the upper portions of the front wings, a spacer bar which vertically connects the lower spacer and the upper spacer, and a wing knob bar to which the spacer bar is fitted and which is coupled to the wing knob, wherein, when the wing knob is rotated in a left-right direction, the spacer bar fitted to the wing knob bar is moved in the left-right direction, and the front wings rotatably coupled to the lower spacer and the upper spacer connected to the spacer bar are rotated in the left-right direction.

Abstract: This disclosure relates to a method for operating a ventilation device for providing an air flow. An equipment parameter value of an equipment element of a motor vehicle and a vehicle parameter value of the motor vehicle are detected. Then, the ventilation device is activated subject to the detected equipment parameter value and the detected vehicle parameter value. To activate the ventilation device, a rotational speed of a fan of the ventilation device is set, where the rotational speed is varied subject to the detected equipment parameter value and the detected vehicle parameter value.

Abstract: A mounting assembly for a fan of a heating, ventilation, and/or air conditioning (HVAC) system includes a frame configured to couple to the HVAC system. The frame includes a support rail having a flange. The mounting assembly includes a first guide rail coupled to the frame and having a first lip extending at an oblique angle relative to the flange. The mounting assembly also includes a second guide rail coupled to the frame and having a second lip extending at the oblique angle relative to the flange. The first and second lips are configured to support and guide translation of a chassis of the fan toward the support rail such that the chassis of the fan engages with the flange. The flange is configured to support the fan offset from the first and second lips in an installed configuration of the fan with the mounting assembly.

Abstract: Methods for generating a vapor are provided. In some embodiments, the method may comprise heating a pressurized stream liquid brine in an ohmic heating device and introducing the resulting heated, pressurized stream liquid brine into a flash vessel such that the heated, pressurized liquid brine flashes to a vapor portion and a remaining liquid portion. In some embodiments, the method provides integrated vapor generation and water treatment such that feedwaters of varying water quality may be used. Also provided are related systems for generating a vapor.

Abstract: A terminal unit of a heating, ventilation, and/or air conditioning (HVAC) system includes a fan configured to provide an airflow through the HVAC unit by drawing the airflow into a fan inlet and expelling the airflow out of a fan outlet. The terminal unit also includes an inlet diffuser disposed upstream of the fan inlet relative to a direction of the airflow, wherein the inlet diffuser includes a first layer of perforated metal and a second layer of perforated metal disposed between the first layer of perforated metal and the fan inlet.

Abstract: An environmental control system includes an environmental control system pack having a trim outlet and a primary outlet. A trim medium is output from the trim outlet and a first medium is output from the primary outlet. An inlet of a mixing manifold is connected to the primary outlet of the at least one environmental control system pack. A trim heat exchanger is connected to the trim outlet and the at least one inlet of the environmental control system pack. Within the trim heat exchanger, the trim medium is arranged in a heat exchange relationship with a second medium. From the trim heat exchanger, the second medium is provided to an inlet of the least one environmental control system pack and the trim medium is mixed with a flow output from an outlet of the mixing manifold.

Abstract: A method for providing filtered air to a zone of a building includes operating an air handler to pass unfiltered air through a filter and output filtered air to the zone of the building. The method includes determining an amount of filtered air provided to the zone of the building by the air handler. The method includes determining if additional air filtration is required to satisfy at least one of a desired amount of clean airflow or a desired reduction of a risk of infection. The method includes activating an in-zone filtration device and operating the in-zone filtration device to draw air from the zone into an inner volume, filter the air, and recirculate the filtered air to the zone of the building in response to determining additional air filtration is required.

Abstract: Processes and plants for producing cement clinker, in which an oxygen-containing gas having a proportion of 15% by volume or less of nitrogen and a proportion of 50% by volume or more of oxygen is conveyed from a first section of the cooler directly adjoining the top of the furnace into the rotary furnace and is optionally additionally conveyed to the calciner, and where the total gas streams fed in to the combustion processes consist to an extent of more than 50% by volume (preferably more than 85% by volume) of oxygen.

Abstract: A fluid heating system for heating a production fluid using a thermal transfer fluid, the production fluid being contained in a vessel includes an electric blower configured to receive ambient air and electrical input power and to provide output source air, a combustion system configured to receive the source air from the electric blower and to receive fuel and to provide the thermal transfer fluid, a heat exchanger configured to receive the thermal transfer fluid from the combustion system and configured to provide heat exchange from the thermal transfer fluid to the production fluid, and to provide output exhaust gas, and wherein the electric fan provides a predetermined volume flow rate of the output source air at a predetermined blower efficiency such that the fluid heating system has a Bulk Heat Flux of at least about 14.7 kBTU/Hr/ft2 and a Pressure Drop of at least about 0.7 psi.

Abstract: Various implementations include a water heater system. The system includes a variable speed pump. The variable speed pump has having an inlet and an outlet. The system includes a heat exchanger, having an inlet and an outlet. The heat exchanger outlet is fluidically connected to the variable speed pump inlet. The system includes an output temperature sensor disposed downstream of the heat exchanger outlet. The system includes a controller configured to receive a first temperature reading from the output temperature sensor. The controller is configured to control operation of the variable speed pump to adjust an output flow rate in response to the first temperature reading. The controller is further configured to receive a second temperature reading from a recovery temperature sensor on a storage tank. The controller is configured to turn off the variable speed pump upon a determination that the second temperature reading has reached a maximum temperature.