Steam cylinders for humidifies require periodic replacement as well as replacement to address failures etc. However, field replacement of steam cylinders is not a straight-forward operation and there is significant risk and potential for damage to the replacement cylinder and the humidifier as fluidic seals for the water inlet and steam outlet must be unmade as well as electrical connections for heater elements, level sensors etc. Accordingly, embodiments of the invention provide solutions for the deployment of replacement cylinders etc. for domestic, retail, and commercial systems that reduce the likelihood of damage to the fluidic seals, electrical connectors etc.

A ventilation system including a building having a space inside, a subterranean facility arranged in a basement of the building and having a subterranean space inside, a communication passage establishing communication between the space and the subterranean space, and a ventilation hole establishing communication between an earth outside the building and the subterranean space is provided. A fuel cell unit having an exhaust port is arranged in the subterranean space. The communication passage has a lateral wall protruding downward from a ceiling of the subterranean space. The lateral wall is arranged on the exhaust port side when the communication passage is arranged on a straight line linking the exhaust port and a second opening portion of the ventilation hole on the subterranean space side. The lateral wall is arranged on the straight line side when the communication passage is arranged at a position spaced apart from the straight line.

A ventilation system including a building having a space inside, a subterranean facility arranged in a basement of the building and having a subterranean space inside, a communication passage establishing communication between the space and the subterranean space, and a ventilation hole establishing communication between an earth outside the building and the subterranean space is provided. A fuel cell unit having an exhaust port is arranged in the subterranean space. The communication passage has a lateral wall protruding downward from a ceiling of the subterranean space. The lateral wall is arranged on the exhaust port side when the communication passage is arranged on a straight line linking the exhaust port and a second opening portion of the ventilation hole on the subterranean space side. The lateral wall is arranged on the straight line side when the communication passage is arranged at a position spaced apart from the straight line.

A steam dispersion system for building humidification is disclosed. At least a portion of the steam dispersion system is comprised of a flexible material that is collapsible for changing the outer dimension of the portion comprised of the flexible material from a greater, higher-pressure, size, to a smaller, lower-pressure, size.

A steam dispersion system for building humidification is disclosed. At least a portion of the steam dispersion system is comprised of a flexible material that is collapsible for changing the outer dimension of the portion comprised of the flexible material from a greater, higher-pressure, size, to a smaller, lower-pressure, size.

The facility (1A) includes at least two treatment devices (2) each with an exchange chamber (20) intended to contain a liquid bath in the bottom part and at least one injection line (21). An aeraulic means (4), creates by suction or by blowing, simultaneously and in parallel for each treatment device (2), an incoming gas stream (F) originating from outside the exchange chambers (2) and passes through the discharge opening of the injection line (21) by being introduced into the liquid bath contained in the bottom part of the exchange chamber (20), below the surface (S) of said liquid bath. The exchange chambers (20) communicate hydraulically with one another so that when the aeraulic means (4) are shut down, each exchange chamber (20) is suitable for containing or contains, in the bottom part, an initial volume (V.sub.initial) of liquid, with an initial liquid level (H.sub.initial) that is identical in all the exchange chambers (2).

The facility (1A) includes at least two treatment devices (2) each with an exchange chamber (20) intended to contain a liquid bath in the bottom part and at least one injection line (21). An aeraulic means (4), creates by suction or by blowing, simultaneously and in parallel for each treatment device (2), an incoming gas stream (F) originating from outside the exchange chambers (2) and passes through the discharge opening of the injection line (21) by being introduced into the liquid bath contained in the bottom part of the exchange chamber (20), below the surface (S) of said liquid bath. The exchange chambers (20) communicate hydraulically with one another so that when the aeraulic means (4) are shut down, each exchange chamber (20) is suitable for containing or contains, in the bottom part, an initial volume (V.sub.initial) of liquid, with an initial liquid level (H.sub.initial) that is identical in all the exchange chambers (2).

An air conditioner includes a flow path through which air to be humidified flows, an agitating plate group, and a spray nozzle. The agitating plate group is configured by arranging agitating plates in parallel at intervals over an entire cross-section of the flow path. Each of the agitating plates has a plate width adjusted to cause a vortex downstream. The spray nozzle is disposed immediately downstream of the agitating plate group, and sprays water particles in a direction perpendicular to a flow direction of the flow path. The plate width of each of the agitating plates is adjusted to satisfy a range of a Reynolds number causing a Karman vortex within a range of used wind speeds. The air conditioner provides high humidification efficiency and high saturation efficiency.

Systems and methods that involve distributing water droplets onto a media, particular but nonlimiting examples of which include systems and methods for exchanging heat between process water and air in an evaporative cooling system that includes media with a plurality of individual elements each having a surface. The surfaces of at least some of the individual elements individually have a static electrical charge, and the static electrical charges are different among the surfaces of the individual elements.

Provided are an indoor unit of an air conditioner and a method for controlling the same, the air conditioner includes a humidification module to generate steam, mix the generated steam with filtered air to generate humidified air, and spray the humidified air at a discharge outlet through an independent flow path to provide the humidified air to an indoor space, in a smart care mode, performs a humidification operation during a heating operation to discharge the humidified air together with heat-exchanged air, automatically switches a mode between a high speed mode and a comfortable mode to prevent frequent on and off, thereby saving energy, and automatically switches an operation mode thereof according to a temperature and humidity to control discharged air and the humidified air, thereby effectively supplying air with adjusted temperature and humidity.