A room 100 in a building has a living etc. space 101 of volume V that is an enclosed space. Ventilation of an air flow F is performed from the outside to the living etc. space 101. Entering/exiting of air as an air current between the inside of the living etc. space 101 and the outside is eliminated, and at least a part of the boundary between the living etc. space 101 and the outside is configured from a gas exchange membrane 310 having a diffusion constant D, a thickness L, and an area A for gas molecules of interest. When air inside the living etc. space 101 is sufficiently agitated and the concentration of gas molecules constituting the air is made spatially uniform, η(t) is controlled so as to vary according to $\begin{array}{cc}\eta \left(t\right)={\eta }_o-\frac{\mathrm{BL}}{\mathrm{AD}}\left(1-\exp \left(-\left[\mathrm{AD}\text{/}L\right]t\text{/}V\right)\right)& \left(9\right)\end{array}$

A system for controlling one or more motorized windows. The motorized windows each have a processor, a network device and wireless transmitters enabling connection via a network. The network is controlled by one or more mobile devices which receive user input. The mobile devices wirelessly connect to a local area network (LAN) via a hub. One or more hubs are connected via the LAN. The motorized windows are networked via a personal area network (PAN). The hubs convert the LAN protocol to the PAN protocol. Sensors send sensor data along with real time weather data to the processor. The processor uses this sensor data to update charts and schedules in memory, then sends commands to the controller based on these updated charts and schedules according to user defined and factory set parameters. The system includes both local and cloud-based control.

A plenum for processing one or more byproducts output from a generator, and systems and methods thereof, can have the plenum in the form of a hollow elongate rectangular box having a first end and a second end opposite the first end. The plenum can have a frame and a sidewall fixed to the frame, and can be adapted to be oriented vertically when operatively coupled to receive the one or more byproducts from the generator. The sidewall can include an opening adapted to receive heated air from the generator as one of the byproducts from the generator.

A plenum for processing one or more byproducts output from a generator, and systems and methods thereof, can have the plenum in the form of a hollow elongate rectangular box having a first end and a second end opposite the first end. The plenum can have a frame and a sidewall fixed to the frame, and can be adapted to be oriented vertically when operatively coupled to receive the one or more byproducts from the generator. The sidewall can include an opening adapted to receive heated air from the generator as one of the byproducts from the generator.

A precursor supply cabinet for accommodating one or more precursor containers having cabinet walls defining an inner cabinet space. The precursor supply cabinet includes a ventilation discharge connection arranged to discharge ventilation gas from the inner cabinet space, one or more ventilation inlet connections, two or more separate gas tight precursor supply chambers for accommodating precursor containers. The gas tight precursor supply chambers are arranged inside the inner cabinet space of the precursor supply cabinet such that the inner cabinet space of the precursor supply cabinet surrounding the separate gas tight precursor supply chambers is ventilated.

A shaft member has the same polarity as discharge electrodes. Each of the discharge electrodes has an electrode body and a tip end which is formed at an end of the electrode body facing an inner peripheral surface of a counter electrode. The discharge electrodes extend such that the tip ends and the electrode bodies are misaligned with each other in an axial direction of the shaft body. A streamer discharge travels from the tip ends of the discharge electrodes toward the inner peripheral surface of the counter electrode.

A power generating roof ventilation device for venting a structure and generating an electrical current includes a tube, which is mountable to a roof of a structure so that the tube is in fluidic communication with an interior space of the structure. The tube extends from the roof. A generator is engaged to and is positioned within the tube so that a drive shaft of the generator extends from the tube. A plurality of blades is engaged to the drive shaft. The blades extract energy from air passing over the blades. The drive shaft is rotated and an electrical current is generated by the generator. Simultaneously, air is extracted from the interior space of the structure.

A ventilation device to be installed outdoors, includes: a casing; a heat exchanger accommodated in the casing and configured to perform heat exchange between outdoor air flowing indoors and indoor air flowing outdoors; an electric component unit including a control board and accommodated in the casing; and a fastener fixing, to the casing, an electric wire connected to the electric component unit. The heat exchanger is extractable sideward from the casing. The electric component unit is disposed above a projection region of the heat exchanger extracted from the casing. The casing includes a lead-out port disposed below the projection region and through which the electric wire is led out of the casing. The fastener is disposed between the electric component unit and the lead-out port. The electric wire fixed by the fastener is routed around the projection region.

A ventilation device to be installed outdoors, includes: a casing; a heat exchanger accommodated in the casing and configured to perform heat exchange between outdoor air flowing indoors and indoor air flowing outdoors; an electric component unit including a control board and accommodated in the casing; and a fastener fixing, to the casing, an electric wire connected to the electric component unit. The heat exchanger is extractable sideward from the casing. The electric component unit is disposed above a projection region of the heat exchanger extracted from the casing. The casing includes a lead-out port disposed below the projection region and through which the electric wire is led out of the casing. The fastener is disposed between the electric component unit and the lead-out port. The electric wire fixed by the fastener is routed around the projection region.

A plenum for processing one or more byproducts output from a generator, and systems and methods thereof, can have the plenum in the form of a hollow elongate rectangular box having a first end and a second end opposite the first end. The plenum can have a frame and a sidewall fixed to the frame, and can be adapted to be oriented vertically when operatively coupled to receive the one or more byproducts from the generator. The sidewall can include an opening adapted to receive heated air from the generator as one of the byproducts from the generator.