The present invention provides a heat-driven adsorption vacuum dehumidification system including a vapor adsorption apparatus having a water permeable hydrophilic membrane separating the apparatus into at least a feed section and a low-pressure or vacuum section (evaporator), and providing a water vapor pressure difference to extract moisture from the air flowing through the apparatus into the evaporator, followed by adsorption in an adsorption chamber, and subsequently desorbed when acted as a desorption chamber to form water vapor which is condensed in a condenser. Adsorption and desorption chambers inter-change periodically to form a complete system cycle. Heating of chamber/compartment can be from waste heat or a renewable source in the absence of any electricity supplied externally. Related method for using a heat-driven adsorption vacuum dehumidification system to remove moisture from the air is also provided. The present invention is superior to the adsorption chiller over a wide range of operating conditions.

An environmental control system includes an air conditioning subsystem and a contaminant removal subsystem downstream of the environment to be conditioned. The contaminant removal subsystem includes: a first gas-liquid contactor-separator; a second gas-liquid contactor-separator; and a dehumidifier disposed either upstream of the first gas-liquid contactor-separator or downstream of the second gas-liquid contactor-separator.

A bathroom management apparatus may include a case having an air suction port formed in an upper portion of a front surface thereof, a first air discharge port formed in a lower portion of the front surface thereof, and a second air discharge port formed in a lower surface thereof. A suction vane opens or closes the air suction port, and first and second discharge vanes opens or closes the first and second air discharge ports, respectively. A duct is provided in the case to connect the air suction port, the first air discharge port and the second air discharge port to one another. A blowing fan is provided in the duct to suck air through the air suction port and blow the air to the first air discharge port and the second air discharge port. A heater heats the air in the duct.

An evaporative cooler includes a first heat exchanger, a first coolant storage, a second coolant storage, and a first airflow drive. The first heat exchanger is capable of cooling a coolant flowing through the first heat exchanger, and cooling an air flowing through the first heat exchanger by way of the cooled coolant. The first coolant storage forms a first coolant circulating path with the first heat exchanger and provides the coolant to the first heat exchanger. The second coolant storage forms a second coolant circulating path with the first coolant storage and is capable of supplementing the first coolant storage with the coolant. The capacity of the second coolant storage is larger than that of the first coolant storage. The first airflow drive cooperates with the first heat exchanger to direct and eject the air flowing through the first heat exchanger.

The invention relates to a process air dehumidification system (2) comprising a process air dehumidifier unit (4) comprising a moisture absorbing agent (6), the process air dehumidification system (2) further comprising a moisture absorbing agent regeneration system (8) comprising a closed regeneration air loop (10) arranged to pass through the process air dehumidifier unit (4) and comprising regeneration air flow generating means (12) for generating a regeneration air flow (14) in the closed regeneration air loop (10) and comprising a heat pump (16) comprising a condenser (18) and an evaporator (20) and a heat pump refrigerant (22), where the closed regeneration air loop (10) is arranged to pass through the condenser (18) and the evaporator (20) to exchange heat between regeneration air (24) and heat pump refrigerant (22), where the dehumidification system (2) comprises a complementary regeneration air moisture removal system (26) arranged downstreams of the evaporator (20) and upstreams of the condenser (18) and a regeneration air heat bypass system (28) arranged to exchange heat from inlet regeneration air (30) upstreams of the dehumidifier unit (4) and down-streams of the condenser (18) to outlet regeneration air (32) downstreams of the dehumidifier unit (4) and upstreams of the evaporator (20) and means (34) arranged to activate and deactivate the complementary regeneration air moisture removal system (26) and the regeneration air heat bypass system (28). The invention also relates to a method for dehumidification of process air.

A dehumidifier system is provided. The dehumidifier system may include a condensate tank and a dehumidifier. The dehumidifier may be positionable between at least one deployed position and at least one stowed position relative to the condensate tank. The condensate tank and the dehumidifier may telescope relative to each other. The dehumidifier system, or portions thereof, may include one or more stacking structures. The dehumidifier system, or portions thereof, may include a pump pick-up.

An HVAC system includes an evaporator coil disposed between a return air duct and a supply air duct. The system includes a compressor fluidically connected to the evaporator coil, and a blower for providing a flow of air through the HVAC system. The HVAC system includes a supply air recirculation line with a recirculation damper and an evaporator bypass line with a bypass damper. A controller of the HVAC determines a recirculation portion of a flow of air and causes the recirculation damper to move to divert the recirculation portion to the recirculation line, so the air recirculates through the HVAC system. The controller determines a bypass portion of a flow of air and causes the bypass damper to move to divert the bypass portion to the bypass line, so the bypass portion does not contact the evaporator coil.

A desiccant assembly (1) for processing an air flow (3) of a ventilation system (201). The desiccant assembly (1) includes at least one desiccant panel (5) having a pair of first and second opposite processing surfaces (5a, 5b) disposed about a main containment body (5c), the containment body (5c) having a containment volume (5d) for receiving a plurality of inner desiccant elements (7), the plurality of inner desiccant elements (7) being contained inside the containment volume (5d) of the containment body (5c) of the at least one desiccant panel (5), and being positioned, shaped and sized inside the containment volume (5d) of the containment body (5c) of the at least one desiccant panel (5), for interacting with the air flow (3) of the ventilation system (201) to be processed, and allowed to pass through said inner desiccant elements (7) of the at least one desiccant panel (5).

An air conditioning (AC) system is provided, employing a sulfonated copolymer (SC) layer as a selectively permeable and ion exchanging membrane. The sulfonated block copolymer has an IEC greater than 0.5 meq/g. In embodiments, the sulfonated block copolymer is used to form the membrane itself, or bonded/coated onto a membrane or a foam. In embodiments, the AC employs a membrane electrode assembly, i.e., using electric field across a membrane in a dehumidifier to transport moisture generating a dry air stream, along with an evaporative cooler for latent heat removal via evaporation induced cooling of the dry air stream from the dehumidifier. The system operates as a closed loop wherein the room air after cooling is recycled or loop back to the dehumidifying membrane electrode assembly to generate dry air for the evaporative cooler, generating conditioned air.

The present disclosure relates to a multi-stage dehumidification system for local area dehumidification of dry room, the system including a main dehumidification part formed to have an inside space that is sealed from outside; a main dehumidifying device for controlling that the relative humidity of the inside of the main dehumidification part is smaller than the relative humidity of the outside of the main dehumidification part; at least one local area dehumidification part that is partitioned within the main dehumidification part, and that has an inside space that is sealed from the main dehumidification part; and a local area dehumidifying device for controlling that the relative humidity of the inside of the local area dehumidification part is smaller than the relative humidity of the inside of the main dehumidification part, wherein the local area dehumidification part includes an opening for entry and exit of objects; a moisture penetration prevention part that protrudes to outside from an edge of the opening; and a first air curtain part that forms a first blocking air flow from one side of an outer opening of the moisture penetration prevention part towards the other side.