An air conditioner is provided. The air conditioner includes a heat exchange module, at least one humidity sensor, and a controller. The heat exchange module includes a compressor, a first heat exchanger, an expansion valve, a second heat exchanger, and an absorbent disposed on an outer surface of the first and second heat exchangers. The controller is configured to control to stop a normal operation and perform a drying operation for supplying air to any one of the first and second heat exchangers serving as an evaporator when it is determined that a predetermined drying operation condition is satisfied based on humidity information of air passed through the any one of the first and second heat exchangers serving as the evaporator, during the normal operation in which the any one of the first and second heat exchangers serves as an evaporator and the other serves as a condenser.

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).

A cooling and dehumidification system including at least one passive heat transfer device with desiccant coated on some extent of the exposed surface, another passive heat transfer device without desiccant coating, a compressor through which refrigerant flows, an expansion device, a refrigerant control valve, and valves to direct airflow in relation to the passive heat transfer devices.

A dehumidifying air handling unit for an HVACR system includes a housing, a desiccant wheel, and a cooling heat exchanger. A main airflow path extending through the housing from an air inlet to and air discharged outlet of the housing. The desiccant wheel includes a first end and a second end that are each disposed in the main airflow path and a metal organic framework desiccant that is moved between the first end and the second end. A desiccant wheel includes a metal organic framework desiccant disposed on a surface of the desiccant wheel. Rotation of the desiccant wheel moves a position of the surface between a first end and a second end of the desiccant wheel. The metal organic framework desiccant has an majority absorption-desorption operating band of 25% relative humidity or less.

The air conditioner according to the present disclosure may comprise an outdoor unit, a first indoor unit having a first indoor heat exchanger connected to the outdoor unit, a first intake duct connected to an inlet opening of the first indoor unit, a first air supply duct guiding air discharged from an outlet opening of the first indoor unit to indoor room, a second indoor unit having a second indoor heat exchanger connected to the outdoor unit, a second intake duct connected to an inlet opening of the second indoor unit and a second air supply duct guiding air discharged from an outlet of the second indoor unit to indoor room, wherein the first indoor heat exchanger and the second indoor heat exchanger include a moisture absorption layer.

The invention relates to an air conditioning apparatus including a first absorptive heat exchanger having sorption channels in at least one flow direction, a method for conditioning fluids, in particular for cooling and/or drying a stream of air, an adsorptive air-air cross-flow heat exchanger, and an outer wall element including an integrated air conditioning apparatus.

Disclosed is a humidity control apparatus which ensures a sufficient dehumidification amount without increasing an area of a gas-liquid contact portion in a dehumidification unit, regardless of the type of liquid absorbent used. The humidity control apparatus includes an absorbent circuit connecting a liquid-based dehumidification module, a recovery module, and a liquid-cooling heat exchanger which cools, with a refrigerant, a liquid absorbent before being used in the liquid-based dehumidification module. A refrigerant-cooling-based dehumidification module is positioned upstream of the liquid-based dehumidification module in a flow direction of target air, and cools and dehumidifies, with the refrigerant, the target air before being dehumidified in the module. The liquid-cooling heat exchanger and the refrigerant-cooling-based dehumidification module are connected to a single refrigerant circuit together with a liquid-heating heat exchanger.

The present disclosure is directed to a dryer system for drying compressed gas discharged from a compressor. The dryer system includes a refrigeration drying system operable for removing moisture from the compressed gas and a desiccant drying system with a desiccant wheel located in series downstream of the refrigeration drying system operable for removing additional moisture from the compressed gas.

A dehumidifying apparatus controls the amount of refrigerant flowing into a third heat exchanger serving as a condenser, so as to secure the amount of heat required for defrosting.

The present invention generally discloses desiccant dehumidifiers control systems. In particular, the present invention relates to solid desiccant dehumidifiers which use a rotor (commonly called a wheel) to dehumidify a process airstream. The invention provides a novel apparatus for control of desiccant dehumidifiers and to an improved method of control of such dehumidifiers, and also to dehumidifiers provided with such control systems.