Abstract: This device (D) for regulating the air flow in a pipe includes a flap (6) delimiting, relative to an inner surface (104) of a pipe (10) of the device (D), an air passage section (S), and an adjusting calibrating element (8) movable between a first position and a second position. The device includes a sealing wall (12), extending between the calibrating element and an inner surface (106) of the duct (10), suitable for preventing the passage of air from the side of the duct (10) opposite the air passage section (S). The sealing wall (12) is rotatable relative to the pipe (10) under the action of the movement of the calibrating element, and the calibrating element includes a front wall (86) perpendicular to the longitudinal axis (X-X?) of the duct (10) which, in the first position of the calibrating element, does not protrude past the circumference of the duct.

Abstract: A closed-loop regulation method of a ventilation system using a control computer. The method includes the steps comprising: providing a ventilation system with a control computer, an exhaust fan, sensors, and gates; using the sensors to determine actual air velocities within the ventilation system; providing minimum air velocities that must be maintained throughout the ventilation system; monitoring the one or more air velocities; and maintaining by the control computer that the actual air velocities are above the one or more minimum air velocities. Preferably, the ventilation system includes a control computer that takes the measurements, makes the air flow calculations, and automatically adjusts the gates and fans to ensure that a minimum air velocity is kept in all parts of the ducts of the system. Preferably, the ventilation system is energy efficient by optimizing the air flow and lowering the amount of energy needed to run the system.

Abstract: A damper system includes a first plate having a plurality of openings and a second plate having a plurality of openings. A cam is coupled to the first plate, and a motor is coupled to the cam. The motor turns the cam, and the cam moves the first plate in relation to the second plate, thereby aligning or offsetting the openings of the first and second plates.

Abstract: A method and a system for controlling ventilation of an indoor area of a building, comprising the steps of: ventilating the indoor area by means of mechanical ventilation and natural ventilation according to a ventilation mode selected among a plurality of ventilation modes, a set of adjustable control parameters (31; 32; 33; 34; 35) and at least one measurement value from a sensor, wherein each ventilation mode is associated with the set of adjustable control parameters (31; 32; 33; 34; 35), each having an adjustable value selected among a group of mode dependent adjustable values, and/or a set of fixed control parameters (34) each having a mode dependent fixed value, and controlling the mechanical ventilation and the natural ventilation by comparing the measurement value from the sensor with a corresponding value of the control parameters of the ventilation mode such that a desired indoor climate defined by the ventilation mode is obtained.

Abstract: A fan type temperature control method and device are provided. The device includes a fan unit including a plurality of fans and cooling an apparatus to be cooled, power supplies (v1,v2) supplying power for the fans in the fan unit, and a fan control unit which controls the fans as follows: when temperature t of the apparatus is lower than critical temperature t1 of a first temperature detect switch (k01), all fans stop; when t is higher than t1 and lower than critical temperature t2 of a second temperature detect switch (k02), all fans rotate at half speed; when t is higher than t2 while lower than critical temperature t3 of a third temperature detect switch (k03), a first fan part (M1) rotates at full speed and a second fan part (M2) stops; when t is higher than t3, all fans rotate at full speed.

Abstract: A controller and indoor unit introducing outdoor air and/or return air from an air conditioning control target, and discharging introduced air to the air conditioning control target as supply air. The indoor unit includes a first space including an outdoor air introducing unit introducing outdoor air, a cooler, and a second space including a return air introducing unit introducing return air from the air conditioning control target. The controller, after determining air conditioning control on the air conditioning control target is necessary, introduces the outdoor air to the first space through the outdoor air introducing unit, subjecting such to cooling by the cooler and/or dehumidification to result in processed outdoor air, and introduces the return air to the second space through the return air introducing unit, where the processed outdoor air is mixed with the return air and supplied to the air conditioning control target as the supply air.

Abstract: A vent tile includes at least one louver, an actuator configured to control the at least one louver, a thermal imaging sensor configured to monitor temperature of a remotely located apparatus through thermal imaging of a surface of the apparatus, and a controller configured to control the actuator based upon the monitored temperature.

Abstract: A ventilation system includes first and second blowers connected to a plenum in parallel, with a first motor drive to control a speed of an electric motor of the first blower and a second motor drive to control a speed of an electric motor of the second blower. A controller associated with the first blower is programmed to receive a set point for a controlled variable that is controllable by operation of the first and second blowers, estimate a total air flow required from the first and second blowers to reach the controlled variable set point, calculate a blower speed ratio between a first blower speed and a second blower speed that provides the required total air flow at a minimum power consumption level, and generate commands to cause the first blower and the second blower to operate at speeds resulting in the calculated blower speed ratio.

Abstract: Methods and systems are provided for adjusting a dual grille shutter system based on engine operating conditions. A position of a first group of grille shutters may be adjusted by a motor in response to engine temperature, CAC temperature, and driving conditions. A position of a second group of grille shutters may be adjusted based on the position of the first group of grille shutters.

Abstract: A variable duct apparatus for a vehicle including first and second louvers to rotate around first and second axes to open and closed positions, the variable duct apparatus including: a link to connect first and second louvers; first and second stoppers disposed at the first and second louvers to control the first and second louvers at an open position; a motor to rotate the first louver; and a control device to perform an opening or closing operation for rotating the first louver to the open or closed position by supplying current to the electric motor until a lock current is detected. The control device includes an abnormality determining unit to determine that an operating state is abnormal when an operating angle of the first louver from a start of the opening or closing operation until detection of the lock current is out of a predetermined reference operating angle range.

Abstract: An arrangement for controlling flow includes a flow control element, an actuator, a linkage assembly, and a sensor module. The linkage assembly is coupled between the flow control element and the actuator, and includes a rotatable linkage element coupled to impart force to the flow control element. The sensor module is affixed to the rotatable linkage element. The sensor module includes a MEMs-based strain gauge affixed to a substrate and operably coupled to measure torque on the linkage element, and a processing circuit disposed on the substrate. The processing circuit is operably coupled to receive torque measurement information representative of the measured torque. The processing circuit generates a fluid flow measurement value based on the torque measurement information and position information representative of a position of a flow control device of the flow control element. The flow control device is mechanically coupled to the rotatable linkage element.

Abstract: The present disclosure provides an apparatus for automatically dispensing air, for example, for hand drying, through either a dedicated air only spout (side mount embodiment) or through a multi-use spout configured for dispensing water, soap and/or air. The air drying module, which is typically positioned below a counter, can be modified according to the system needs to operate with hot and/or cold air and to optionally include a filter and/or fragrance dispenser.

Abstract: Embodiments of a door assembly with a door component that can open and close in response to pressure of fluids that flow in a fluid handling system. These embodiments utilize elements to seat and lock the door in position without the need for manual intervention and/or interaction, e.g., by a technician and/or maintenance personnel. However, these elements do not need to support the weight of the door and, thus, provide a more robust and cost effective design to achieve automated and reliable operation necessary for use in fluid handling systems.

Abstract: Disclosed is a motorized diffuser which is shut when not in use and which reduces energy consumption in a building, eliminates the necessity of a maintenance hole, prevents contamination, has a simple configuration, and enables easy maintenance when applied in a cooling/heating system adopting a proportional air flow control scheme. According to the disclosed diffuser, a diffuser cone includes: a diffuser cone body which forms a fluid passage on the outer surface thereof which is disposed between the diffuser cone body and a diffuser casing when the diffuser cone is opened; a diffuser cone cover fixed to the diffuser cone body such that the diffuser cone cover can be assembled/disassembled to/from the diffuser cone body with a space therebetween; and a motor means fixedly installed in the space.

Abstract: There are provided an air-conditioning device that can easily perform fan setting to obtain a proper air volume in accordance with external static pressure, and a method of controlling the air-conditioning device. There is executed air volume setting processing (S3 to S14) for measuring an actual rotation number (r_MAX) when a fan motor for driving an air blowing fan is set to a maximum output, and setting the rotation number corresponding to a target air volume of the air blowing fan under normal operation of the built-in type air-conditioning device.

Abstract: A fan array fan section in an air-handling system includes a plurality of fan units arranged in a fan array and positioned within an air-handling compartment. One preferred embodiment may include an array controller programmed to operate the plurality of fan units at peak efficiency. The plurality of fan units may be arranged in a true array configuration, a spaced pattern array configuration, a checker board array configuration, rows slightly offset array configuration, columns slightly offset array configuration, or a staggered array configuration.

Abstract: Provided herein is an HVAC controller that receives blower volumes for different operating modes per HVAC zones, a HVAC system including the same and a method of operating the controller. In one embodiment, the controller includes: (1) an interface configured to receive blower volumes for each zone of the HVAC system that correspond to operating modes thereof of the HVAC system, wherein the blower volumes are received via a single graphical user interface and (2) a processor configured to direct operation of a circulation fan of the HVAC system based on at least one of the blower volumes.

Abstract: A sensor module includes a MEMs sensor device and a processing circuit. The MEMs sensor device is operable to determine a fluid flow induced mechanical force on a first flow control device connective element. The processing circuit is operably coupled to receive fluid flow induced mechanical force information based on the determined fluid flow induced mechanical force. The processing circuit is configured to generate a fluid flow measurement value based on the fluid flow induced mechanical force information and position information representative of a position of a flow control device coupled to the first flow control connective element.

Abstract: A control system and associated methods for an air treatment system. In one aspect, the present invention provides a control system and method for controlling blower speed as a function of separately determined smoke and dust concentrations. In one embodiment, the control system and method provides a variable delayed between changes in motor speed to address undesirable rapid changes between speeds. In another aspect, the present invention provides a system and method for calibrating a sensor to provide more uniform operation over time. In yet another aspect, the present invention provide a system and method for calibrating motor speed to provide more consistent and uniform motor speed over time. The present invention also provides a system and method for tracking filter life by as a function of time, motor speed and/or a sensed variable, such as particulate concentration in the environment.

Abstract: A cooling system having a source of pressurized intake air includes a primary fan and a secondary fan spaced apart from the primary fan. The pressurized intake air flows from either of the primary or secondary fans. Ductwork includes an inlet, at least one generally hollow supply plenum in fluid communication with the inlet, and at least one supply opening in fluid communication with the supply plenum. The pressurized intake air is urged into the inlet, through the supply plenum and out of the supply opening as a first air supply. The supply opening is configured to direct the first air supply toward at least one first heat generator. The secondary fan is configured to operate in a predetermined manner corresponding to a status of the primary fan.

Abstract: Methods and systems are provided for reducing corrosion of a charge air cooler and preventing engine misfire due to condensate formation. In response to a condensate forming region in a charge air cooler, a grille shutter system is adjusted, moving the condensate region to a different location in the charge air cooler. Grille shutter orientation may also be controlled in response to vehicle operating conditions and condensate-forming weather conditions.

Abstract: Systems and methods for determining the area of a sash opening in a fume hood formed by at least one movable sash panel. An emitter and sensor panel is mounted in a fume hood enclosure space. The emitter and sensor panel comprises at least one light emitter mounted on one side of an optical sensor. The at least one light emitter is configured to illuminate the fume hood enclosure space. At least one reflective marker is mounted on one edge of the sash opening to reflect light from the at least one light emitter. Optical information detected at the optical sensor is used to determine a variable distance to the at least one reflective marker. The variable distance and known distance parameters are used to determine the area of the sash opening.

Abstract: Climate regulation within an enclosure (e.g., a case of a workstation or a rack or cabinet of servers) may be achieved through a climate regulator featuring several selectable climate regulator settings (e.g., a variable-speed fan array). Controllers of such climate regulators often select climate regulator settings based on current conditions inside the enclosure, such as the temperature of one or more processors operating within the enclosure. However, such control fails to account for the climate of air outside the enclosure that is drawn in to provide climate regulation, even though the climate properties of inlet air may significantly affect the effectiveness of climate regulation. Accordingly, a controller of a climate regulator may be configured to detect inlet climate properties of air directed into the enclosure, and to map the inlet climate properties (alone or in combination with other factors) to a selected climate regulator setting for the climate regulator.

Abstract: A fan apparency arrangement for an appliance having a cooling fan for moving cooling air through an airflow pathway is disclosed. The arrangement includes a bracket mounted to the appliance's interior frame and one or more thermal switches mounted to the bracket. The thermal switches have an activation temperature at which they signal a malfunction of the fan when the fan fails to move sufficient cooling air through the airflow pathway. The bracket is configured to secure the switches within the airflow pathway to maintain the switches at a temperature below their respective activation temperatures when the fan is operating properly. Additionally, the bracket conducts heat directly from the frame to the switches so that when the fan malfunctions, the reaction time of the switches in reaching their respective activation temperatures is reduced. An appliance incorporating such a fan apparency arrangement is also disclosed.

Abstract: An independent monitoring system and method for measuring the airflow rate in an appliance and determining its sufficiency is provided. An airflow detection system that monitors airflow rate (velocity) in an appliance is separate from the primary appliance control system and can determine whether a sufficient flow of air through air passageways occurs during operation of the appliance. An appliance component or subsystem can be controlled (e.g. activated or deactivated) by the airflow monitoring system based on the detected airflow rate.

Abstract: A ventilation system includes a connection determinator configured to determine that N-th, second, and sixth humidity controlling ventilation devices are connected to an identical second duct bank in a situation where when fans of the second and sixth humidity controlling ventilation devices are driven, and the rotational speed of a fan of the N-th humidity controlling ventilation device is changed, a power detector detects fluctuations in the power consumed by the fan of each of the second and sixth humidity controlling ventilation devices.

Abstract: A control/regulation unit and a sensor device in an air-conditioning device enable detecting presence of an analyte in room air to infer the quality of the room air. A light source emits light into the room on a light path that is reflected to a light-sensitive detector. The air-conditioning device is controlled/regulated as a function of an output of the detector. If the analyte is situated on the light path, the light is scattered and/or absorbed such that the detector detects a smaller quantity of light, on the basis of which it is possible to infer the presence of the analyte. The light source can be pivoted to set various light paths through the room to determine where the analyte is situated in the room based on the output of the detector for each light path. The air-conditioning device can controlled to selectively influence the atmospheric environment locally.

Abstract: A server system includes a server cabinet, several fan control boards, several servers connected to one fan control board, an uninterruptible power supply, a network switch, and several fan groups coupled to the server cabinet. The fan control board includes a determining module to determine whether the fan control board has received a control signal, and a controlling module. The server includes a first detecting module to detect performance characteristics, a first obtaining module to obtain a control signal, and a first transmitting module to transmit the control signal. Each fan group includes several fans to cool the servers, the uninterruptible power supply, or the network switch. When determining that the fan control board received a control signal, the controlling module of the fan control board controls the fan group to rotate at a corresponding speed; otherwise controlling the fan group to rotate at a constant speed.

Abstract: A method for controlling air volume including: 1) establishing a functional relation formula for air volume in a microprocessor control unit of a motor controller; 2) inputting a target air volume into the microprocessor control unit of the motor controller; 3) starting a motor by the motor controller under a torque to enable the motor to fall on a steady state; 4) recording the rotational speed in the steady state, and calculating an air volume in the steady state; 5) comparing the target air volume with the calculated air volume; 6) re-recording a steady rotational speed after the motor falls on a new steady state under an increased or reduced torque, and recalculating the air volume in the new steady state; and 7) repeating steps 5) and 6) to adjust the torque until the calculated air volume is equal or equivalent to the target air volume.

Abstract: A first fan controlling section of a controller circuit is configured to control a first blower fan so as to induce the discharge of the airflow of a cool air through a first air outlet defined in a first enclosure of an indoor unit of the air conditioner. A second fan controlling section is configured to control second blower fans so as to induce the discharge of the airflows of a room air through second air outlets, respectively, defined in a pair of second enclosures disposed on the opposite sides of the first enclosure. An enclosure attitude controlling section is configured to change the respective attitude of the second enclosures relative to the first enclosure.

Abstract: A method for controlling air volume including: 1) establishing a functional relation formula for air volume in a microprocessor control unit of a motor controller; 2) inputting a target air volume into the microprocessor control unit; 3) starting a motor by the motor controller to enable the motor to achieve a rotational speed and fall on a steady state; 4) recording the torque and rotational speed in the steady state, and calculating an air volume in the steady state; 5) comparing the target air volume with the calculated air volume; 6) re-recording a steady torque after the motor falls on a new steady state under an increased or reduced rotational speed, and recalculating the air volume in the new steady state; and 7) repeating steps 5) and 6) to adjust the rotational speed until the calculated air volume is equal or equivalent to the target air volume.

Abstract: An indoor air quality (IAQ) control module may be provided for sensing and controlling the indoor environmental quality (IEQ) of a zone in a building. The IAQ control module may receive a supply air sample from a supply vent and a return air sample from a return vent, where the air samples are taken using the pressure created by a blower within the HVAC system. The IAQ control module may then compute a differential value for each of the sensed one or more air parameters and generate a control signal or command based on at least the differential value(s). The IAQ control module may then communicate the control signal to an airflow control device to control the airflow to and/or from the zone.

Abstract: A container includes an air conditioner, a double group of air conductor sheets and a number of racks. The air conditioner includes at least one air outlet. The double group of air conductor sheets is positioned in the at least one air outlet. The double group of air conductor sheet includes a first group of air conductor sheets and a second group of air conductor sheets oriented in different directions. The double group of air conductor sheets is positioned between the racks. The first group of air conductor sheets rotates toward the racks positioned at two sides, and the second group of air conductor sheets rotates toward the racks positioned at two ends.

Abstract: The invention relates to a method for testing and/or monitoring the air quality in an operating room (100) with an operating table (110) arranged in it. In order to achieve conclusions about the air quality with simple measures it is suggested that at least one measured value recorder (118, 120, 122, 123) is arranged in, on and/or in the range of the operating table by means of which the air quality of the air is measured in the area of the operating table and during the activities.

Abstract: An air conditioning unit includes a passage having a heat exchanger; a blower for blowing air through the passage; a blower motor driving the blower in response to a drive signal; an energy recovery ventilator (ERV), the blower drawing outside air from the ERV; and a controller for adjusting the drive signal in a ventilation mode to reduce power used by the blower motor.

Abstract: An improved method and system for flue gas recirculation (FGR) from the ID Fan located downstream of a scrubber (or other Air Quality Control Equipment including cyclones, baghouses, etc., hereafter “AQC equipment”) back to the scrubber (or other AQC Equipment) inlet to maintain the minimum required flue gas throughput during low-load conditions, thereby eliminating the need for a separate booster fan. A flue gas recirculation duct is connected from downstream of the ID Fan to the inlet of the scrubber (or other AQC Equipment). A variable flow restrictor is placed in the duct downstream of the ID Fan for controlling pressure of the recirculated flue gas. The flow restrictor is controlled in accordance to a function of boiler load or flue gas flow to produce the required backpressure that enables the flue gas to flow through the recirculation duct back to the inlet of the scrubber (or other AQC Equipment) at low loads.

Abstract: An energy-reducing method and apparatus for retrofitting a constant volume HVAC system, with or without an economizer, that provides heating, cooling, and ventilation to occupants within a building space. The present invention includes the introduction of a programmable logic controller and variable frequency drive (VFD) that takes control of the existing fan, heating, cooling, and optional economizer operation. The controller is programmed for the reduction of fan speed in the heating and cooling modes. The reduction of the fan speed in the ventilation mode when the 100% operation is not needed saves significant energy of the existing constant volume HVAC system where the fan motor is designed to run 100% of the time. The fan speed may be further reduced upon a reduction in sensed occupancy levels of the space, such as with a CO2 sensor. Additionally, the fan speed may be reduced in the heating and/or cooling mode to further reduce energy consumption.

Abstract: An air supply system comprises a compressed air generation device which is connected to a line system which conveys air and the capacity of which is a multiple of a nominal requirement for air used for medical purposes. The compressed air generation device is moreover connected via a line system to a low priority air consumer. To ensure that the air intended for medical purposes has priority, a device sensitive to pressure or volumetric flow rate is provided in the line system which conveys the air intended for medical purposes, which device restricts or shuts off the flow of air in the line system conveying the lower priority air when the pressure or the volumetric flow rate in the line system which conveys the air intended for medical purposes drops below a specific value.

Abstract: A system for controlling moisture content in ambient airflow in a substantially enclosed structure having components. The system includes at least one humidity control apparatus and a plurality of sensors for detecting moisture content in airflow in a plurality of locations of the substantially enclosed structure. The plurality of sensors are located remotely from the at least one humidity control apparatus and are situated in relatively close proximity to the components that the at least one humidity control apparatus is configured to affect. The system also includes a controller configured to receive moisture content levels detected by one or more of the plurality of sensors and to control the at least one humidity control apparatus based upon the detected moisture content levels to vary the moisture content in the ambient airflow around the plurality of locations.

Abstract: A whole house ventilation control system is disclosed for a house HVAC system including a thermostat, supply and return air plenums and an HVAC fan. The thermostat selectively controls the HVAC system to maintain the desired temperature and resulting in a variable operating cycle period between successive on times. A fresh air intake duct is between an exterior intake vent and the return air plenum. A stale air exhaust duct is between the return air plenum and an exterior exhaust vent. The control system comprises a controllable intake damper in the fresh air intake duct and a controllable exhaust damper in the stale air exhaust duct. A controller is operatively connected to the house HVAC fan and the controllable dampers. The controller stores a desired fresh air exchange rate and is further adapted to predict an upcoming cycle period for a next successive operating cycle and calculating a fresh air vent timer responsive to the desired fresh air exchange rate and the predicted upcoming cycle period.

Abstract: A fan control system and a method thereof are provided. The fan control system is suited for a plurality of racks placed in an accommodation space. The fan control system includes a plurality of fan units and a fan control device. Each of the fan units is respectively disposed on each of the racks, and the fan units are arranged according to at least one air flow direction. The fan control device drives the fan units according to a driving sequence. In other words, the fan control device circularly and sequentially drives the fan units according to an order of the fan units. Thus, the fan control system maintains movement of air flow without driving all the fan units at the same time, so that the racks placed in the accommodation space are cooled efficiently and the required electric power is reduced.

Abstract: An air conditioner and a method of controlling the same are disclosed herein. The method of controlling the air conditioner includes receiving an electric power rate information, and distributing an internal air from a first indoor room to a second indoor room to reduce a temperature difference between a plurality of indoor rooms. During periods of peak power rates, costs associated with operating the air conditioner may be reduced by limiting operation of the indoor and outdoor units, while adjusting the temperatures of the indoor rooms by distributing air among the plurality of the indoor rooms.

Abstract: A gravity air vent and a server rack having the same are provided. The server rack includes at least a rack main body and at least a fan module. The fan module is assembled on a side surface of the rack main body and has an air inlet corresponding to the fan module. The air vent includes a frame and at least one covering plate. The covering plate is pivotally connected to the frame and operable of be opened or closed relatively to the frame to expose or cover the air inlet.

Abstract: Disclosed is an air conditioner with functions for deciding room shape by determining, based on a temperature difference, information between the room's floor and walls occurring during operation, a human body detection position log, and a capacity zone of the air conditioner. In an embodiment, an infrared sensor detects a temperature of an area of the room by scanning the area and a control unit acquires thermal image data of the area scanned by the sensor and then controls the air conditioner based on the thermal image data. The control unit sets a boundary line between a wall and floor of the room at a position on the thermal image data, calculates a temperature difference between vertically adjacent pixels located above and below the boundary, corrects a position of the boundary based on temperature difference, and determines that areas parted by the boundary correspond to the wall and floor, respectively.

Abstract: In a system that employs multiple air movers (e.g., fans) within an enclosure, the air movers are controlled in an attempt to optimize cooling efficiency of the system. In some aspects, current cooling efficiency is indicated based on one or more characteristics of an acoustic signature in the enclosure. In particular, a reduction in cooling efficiency may be indicated by spreading of an acoustic peak of the acoustic signature. Accordingly, improved cooling efficiency may be achieved by controlling the air movers in a manner that reduces spreading of such an acoustic peak.

Abstract: A device for detecting and/or measuring air flow in a cooling air flow passageway of an appliance using solid-state flow detectors. Heat generating components of the appliance are controlled in response to detected air flow. More specifically, the disclosure provides a device for detecting the presence of airflow and/or the approximate rate of airflow in a cooling channel of an appliance chassis. Based on this information, the appliance can perform safety-related tasks, such as de-energizing associated heating elements if there is too-low (or no) airflow detected. The solid-state flow detectors are easily fabricated, installed, and calibrated and avoids the calibration, fabrication and/or installation difficulties associated with sail switches and other such approaches such as thermal limit switches.

Abstract: A method and system for operating a demand control ventilation system with a multi-speed fan is disclosed. The control system may modulate the fan speed of a multi-speed fan and/or the position of a ventilation damper in order to achieve desired ventilation levels for a building.

Abstract: The present invention is generally directed to an apparatus and a method for controlling an environment in a location. In one aspect, an apparatus for controlling an environmental condition in a location is provided. The apparatus includes a flow control device, wherein the flow control device is connectable to an environmental control unit via a conduit. The flow control device comprising a flow restriction member configured to selectively control an airflow into the location and a controller member configured to autonomously actuate the flow restriction member based upon the environmental condition in the location. In another aspect, a method for controlling an environmental condition in a first location and a second location is provided. In a further aspect, a system for controlling an environmental condition in a first location and a second location is provided. In yet a further aspect, a method for controlling an environmental condition in a location is provided.

Abstract: A method for providing a ventilation control compliant with an adopted ventilation standard for efficient energy usage and conservation of energy resources. The method includes operating a home energy system to generate solar energy within a daily active period and draw ambient fresh air, and setting a daily ventilation period as a fractional period of a day. The daily ventilation period is substantially coordinated with the daily active period during a heating/cooling period for the home. Additionally, the method includes determining a target volume in compliance with the adopted ventilation standard and determining a flow rate for delivering the fresh air during the daily ventilation period. Moreover, the method includes monitoring an accumulated total ventilation volume of the delivered fresh air until the accumulated total ventilation volume is within a vicinity of a target volume.

Abstract: The invention relates to a method and to an air feeding device for producing anodes in an annular kiln (10), comprising at least one kiln unit (“fire”) (11) having a heating zone (13), a firing zone (14), and a cooling zone (15), each having a plurality of kiln chambers (12) which are interconnected by heating channels (17), are formed as heat exchangers and are used to receive anodes, in said method primary air being introduced into the cooling zone by means of a primary air feeding device (21) for the passage of air through the kiln unit and, once it has passed through the firing zone, being discharged from the heating zone as flue gas by means of an exhaust device (22), wherein secondary air is fed into the heating zone in the direction of the primary air flow, upstream of the exhaust device, by means of a secondary air feeding device (24).