Abstract: A housing rotatably supports a desiccant wheel, Ambient air passes through one part of the housing and hot exhaust air passes through the other part. As the wheel rotates, it absorbs moisture from the ambient air in part of the housing and desorbs moisture into the exhaust air in the other part. A fuel cell system supplies the hot exhaust air directly to the desiccant wheel, The dry ambient air is directed to an evaporative cooler and divided between dry channels and wet channels, The air passing through the dry channels cools to be directed to a conditioned space. The air passing through the wet channels evaporates water in the channels facilitating heat transfer and adding moisture to that air. The air from the wet channels is optionally added back into the air from the dry channels to provide appropriate humidity.

Abstract: A dehumidification type air system is configured such that a switching valve and an air-used device are connected through a dehumidifying member made of a polymer permeation membrane with moisture permeability, and by bringing a moisture emitting face of the dehumidifying member into contact with the atmosphere, supply air supplied from the switching valve through the dehumidifying member to the air-used device is dehumidified by the dehumidifying member, while the moisture permeating through the dehumidifying member is diffused from the moisture emitting face to the atmosphere through natural evaporation.

Abstract: An HVAC system includes a desiccant wheel, wherein the wheel's speed varies with airflow, the wheel is energized for at least a set period at startup, and/or a heat recovery system (e.g., an air-to-air heat exchanger) upstream of the wheel enhances the system's ability to dehumidify air.

Abstract: A climatic chamber for rapidly reaching and maintaining a predetermined air humidity and/or a predetermined temperature. The air in a sample space is conveyable by at least one fan from an outlet of sample space at least partially via a bypass branch and/or at least partially via a drying branch back to an inlet of sample space. The air is circulated continuously by the fans in a substantially self-contained circuit. The air is guided by guide elements through the bypass branch and/or drying branch.

Abstract: An air conditioning system that includes desiccant compartments for holding a desiccant; a heat exchanger, a blower and a vessel. The heat exchanger can be filled with a heat transfer medium, while the blower blows ambient air by the heat exchanger such that the blown air is cooled and the heat exchanger is warmed such that thermal energy increases and is transferred from the air to the heat transfer medium causing the heat transfer medium to turn into vapor. The vapor is then diffused to one of the desiccant compartments such that the vapor is adsorbed onto the desiccant creating a mixture. Then an energy source is applied to the mixture such that the vapor and desiccant are separated. The separated vapor is transported to the vessel where it is condensed and then sent back to the heat exchanger, such that the system is able to be continuously operating.

Abstract: A geothermal desiccant cycle cools and dehumidifies the air in an indoor conditioned space. The return air is split into two streams. One of the streams passes through a desiccant wheel to remove water vapor and then through a cooling coil for sensible cooling from geothermal water. The other stream is heated to increase its capacity to absorb moisture, and then is passed through the desiccant wheel to pick up the moisture transferred from the first stream and regenerate the desiccant. The second air stream, which now has a higher dewpoint temperature, flows through a geothermal cooling coil, for sensible cooling as well as condensation of the moisture. The two air streams are mixed and supplied back to the conditioned space. A regenerative air-air heat exchanger can be used to recover some of the heat used in heating the second air stream.

Abstract: The present invention relates to a dehumidification and humidification apparatus for vehicles using an adsorbent which is capable of feeding a dehumidified air for preventing fogging of window glass and a humidified air for improvement in comfortableness, and is simplified in construction thereof and reduced in size thereof. The dehumidification and humidification apparatus for vehicles according to the present invention comprises a casing (1), and a blower (2), an adsorbent module (3) and an air passage switching device (4) which are accommodated in the casing.

Abstract: The invention provides a produce preserving article comprising a mixture of humectant and silica gel sorbent.

Abstract: To obtain a refrigeration air conditioning system having a dehumidifying function by means of a moisture adsorption means, allowing the moisture adsorption means to be regenerated by use of discharged condensation heat or other discharged heat of a low temperature range in the refrigeration cycle, and exerting stable cooling performance even at a dry-bulb temperature of 0° C. or less. A desiccant rotor 1, being a moisture adsorption means, is made to hold an adsorbent having pore sizes of 5 ?m or less, more preferably 20 nm or less, and furthermore preferably 1-1.4 nm in a space at a predetermined temperature range of a dry-bulb temperature of 0° C. or less.

Abstract: A system for use as an air conditioning and heating system that uses waste heat to dehydrate a desiccant. The desiccant is then used to dry air. A water sprayed onto an extended, fanned surface is used to harness evaporative cooling of air in contact with the evaporator surface. According to one aspect of the invention, plant spray irrigation surfaces are used as a means to expose water in a dried air environment to cool the air by contact and to produce cool air. The combination of cooled and dried air produces a comfortable environment, i.e., air conditioning.

Abstract: An indoor and outdoor cooling system that is provided with a one or more nozzles that are adapted to spray a fine water mist into the air. The cooling system also includes a fan and a dehumidifier. The dehumidifier is adapted to introduce dehumidified air into the area being cooled. The mixing of the dry dehumidified air with the water mist causes the water mist to evaporate which causes the removal of the vaporization heat from the surrounding air to lower the air temperature.

Abstract: Systems and methods for storing and releasing energy comprising directing inlet air into a vertical cold flue assembly having an air inlet at or near its top into which inlet air is directed and an exit at or near its bottom. The air is cooled within the cold flue assembly and a portion of moisture is removed from the air within the cold flue assembly. The air is directed out the exit of the cold flue assembly and compressed. The remaining moisture is substantially removed and the carbon dioxide is removed from the air by adsorption. The air is cooled in a main heat exchanger such that it is substantially liquefied using refrigerant loop air, the refrigerant loop air generated by a refrigerant loop process. The substantially liquefied air is directed to a storage apparatus. The refrigerant loop air is cooled by a mechanical chiller and by a plurality of refrigerant loop air expanders.

Abstract: The present invention relates to hybrid absorption chiller, which uses high-temperature steam and medium-temperature water generated in industrial processes as a heat source, the hybrid absorption chiller including a high temperature generator that uses the high-temperature steam as a heat source so that the heat exchange with refrigerant is carried out; a low temperature generator that uses the heat of condensation of the refrigerant steam, generated in the high temperature generator, as a heat source so that the heat exchange with refrigerant is once again carried out; a generator for medium temperature water that uses the medium-temperature water as a heat source so that the heat exchange with refrigerant is carried out; a hybrid condenser that simultaneously condenses the refrigerants which are respectively heat-exchanged in the high temperature generator, the low temperature generator, and the generator for medium temperature water; an evaporator that uses latent heat of vaporization of the refrigerant c

Abstract: There is disclosed a water feed device capable of adding mineral components to for-treatment water in accordance with user's request to feed a variety of water including the mineral components from soft water to hard water. Furthermore, there is disclosed a water feed device capable of selecting a treatment function to be performed with respect to the for-treatment water in accordance with the type of water for use as the for-treatment water, a use situation and a purpose, to perform an optimum treatment. A water feed device S of the present invention includes a mineral addition treatment unit which has one or more mineral components and which adds the mineral components to the for-treatment water; and a control unit which has data concerning the one or more mineral components of mineral water and which controls the addition of the mineral components by the mineral addition treatment unit in accordance with the selected mineral water.

Abstract: A refrigeration system for providing conditioned air to a space includes a compressor operable to compress a refrigerant, a condenser configured to receive the refrigerant from the compressor, an expansion device configured to receive the refrigerant from the condenser, a desiccant operable to adsorb moisture from an airflow flowing through the desiccant such that the airflow is substantially dehumidified, and an evaporator assembly configured to receive the refrigerant from the expansion device and the airflow from the desiccant. The evaporator assembly is operable to condition the airflow prior to discharge from the evaporator assembly. The refrigeration system also includes a heat exchanger configured to selectively receive the refrigerant from at least one of the compressor and the condenser. The heat exchanger is in communication with the desiccant such that the refrigerant in the heat exchanger desorbs moisture from the desiccant.

Abstract: Disclosed is a dehumidification unit which comprises alternate laminations of an adsorption element (1) provided with a plurality of first air ventilation passages (3) and a cooling element (2) provided with a plurality of second air ventilation passages (4). In the dehumidification unit, the cooling element (2) is provided, at a planewise inner area thereof, with an opening (24), thereby being shaped like a frame. Cooling air (Ab) is passed through the opening (24). With such configuration, the length of the second air ventilation passages (4) becomes shorter by an amount corresponding to the formation of the opening (24). Consequently, the pressure loss of the cooling air (Ab) is reduced and its flow rate increases accordingly. In addition, at the opening's (24) area, the cooling air (Ab) is brought into direct contact with the adsorption element's (1) side, and the efficiency of heat transfer therebetween is improved.

Abstract: A humidity control system (10) includes a refrigerant circuit (50) including a compressor (53), a first adsorption heat exchanger (51) carrying an adsorbent thereon, an expansion valve (55) adjustable in opening and a second adsorption heat exchanger (52) carrying an adsorbent thereon, supplies humidity-controlled air to a room by operating alternately in a first batch mode in which the second adsorption heat exchanger (52) adsorbs moisture in air and the first adsorption heat exchanger (51) releases moisture to air and a second batch mode in which the first adsorption heat exchanger (51) adsorbs moisture in air and the second adsorption heat exchanger (52) releases moisture to air, controls the opening of the expansion valve (55), sets, upon start of the first batch mode, the opening of the expansion valve (55) to that at the end of the preceding first batch mode and sets, upon start of the second batch mode, the opening of the expansion valve (55) to that at the end of the preceding second batch mode.

Abstract: In the air conditioning system (1), switching is selectively made between a normal operation where air is dehumidified by the humidity controller (10) alone according to operating conditions and a simultaneous dehumidifying operation where air is dehumidified by the humidity controller (10), while at the same time air is dehumidified by the air conditioner (20) by condensing moisture in the air.

Abstract: A method and an apparatus for desorption and a dehumidifier are provided in the present invention, in which an electrical potential is applied to electrodes disposed on both ends of an absorbing material so as to desorb the substances absorbed within the absorbing material whereby the absorbing material is capable of being maintained for cycling the absorbing operation. By means of the method and the apparatus of the present invention, the desorbing efficiency can be enhanced and the energy consumption can be reduced during desorption.

Abstract: An air conditioning system (1) includes a first humidity controller (10), a second humidity controller (20), a first air conditioner (30), a second air conditioner (40), and a interlock control means (3). The first humidity controller (10) humidifies an indoor perimeter zone while the second humidity controller (20) humidifies an indoor interior zone. The first air conditioner (30) heats/cools the indoor perimeter zone while the second air conditioner (40) heats/cools the indoor interior zone. Upon input of dew condensation occurrence information, the first humidity controller (10) performs a dew removal operation while the first humidity controller (20), the first air conditioner (30), and the second air conditioner (40) continue respective operations at input of the dew condensation occurrence information.

Abstract: Potable water is produced by extraction of water vapor from air. Water absorbed inside a desiccant bed is forced into vapor phase by using input heat energy, for example, waste heat from the exhaust of an internal combustion engine. Pre-heating a portion of the desiccant material prior to desorption enhances efficiency. Energy for the pre-heating may be obtained by recovering heat from the desiccant material prior to adsorption.

Abstract: The invention relates to an adsorber element for a heat exchanger and an adsorption heat pump or adsorption refrigerator that contains at least one such adsorber element. The adsorber element includes a heat-conducting solid body and a sorption material for a vaporous adsorbate arranged on the surface of this solid body. A fluid-tight foil composite is arranged on the outer surface of the open-pore solid body, at least in the areas in which a contact with a heat transfer fluid is provided, wherein this adsorber element is embodied such that the heat exchange between the open-pore solid body and the heat transfer fluid can take place via the fluid-tight foil composite.

Abstract: A system and method for managing water content in a fluid includes a collection chamber for collecting water from the fluid with a desiccant, and a regeneration chamber for collecting water from the desiccant. An evaporator is used to cool the collection chamber, and a compressor is used to compress refrigerant flowing through the evaporator. An engine powers the compressor, and also provides waste heat to the regeneration chamber to increase the amount of water expelled from the desiccant. Water from the desiccant is evaporated in air flowing through the regeneration chamber. Air leaving the regeneration chamber is cooled to extract the water for drinking or other uses.

Abstract: A method and apparatus for pretreating a fresh food product to relieve the internal (turgor) pressure and adjust the product temperature has an enclosure with an internal space, an air inlet and an air outlet. An exhaust fan is in fluid communication with the internal space. First and second spaced apart rows of product containers are disposed on either side of the exhaust fan to form an airflow aisle with an open end. A cover extends over the airflow aisle and the open end to form an air plenum tunnel. The exhaust fan is activated to lower the air pressure within the tunnel and pull enclosure air through openings in and between the product containers and over and around the food product. The exhaust fan further circulates exhaust air over cooling coils and returns exhaust air to the internal space of the enclosure. An air conditioning mechanism is attached at a first end to the enclosure outlet.

Abstract: A solar collector system (10, 30, 82, 82?, 171) includes a photovoltaic means (24, 174) for conversion of solar energy into electrical energy and a pathway/conduit (22, 94, 94?, 94?) for thermal transfer fluid which is in thermal communication with the photovoltaic means (24, 174). A shaped solar concentrator surface (12, 58, 58?, 173) may have at least one focus and the pathway/conduit (22, 94, 94?, 94?) may be disposed at the focus. The shaped solar concentrator surface (12, 58, 58?, 173) may be comprised of roof cladding material (58?) which is integrally formed to support the conduit (94) at the focus. Alternatively, the concentrator surface (173) may be disposed in a trough of corrugated roof cladding, with a transparent or translucent cover (98) over the top. The covers may be domed covers having an axis of curvature which substantially aligns with the roof gradient. A roofing structure comprises intersecting first (48) and second (50) roofing planes.

Abstract: A rotor replacing mechanism for rotary desiccant includes a base plate, on which a plurality of gears are mounted to form multiple support points, to and between which a rotor of the rotary desiccant is held in place. One or two of the plurality of gears may be moved to different positions to allow easy removal of the rotor from the base plate and accordingly the rotary desiccant and be replaced with a new one.

Abstract: Disclosed is a humidity control device which is provided with an adsorptive element (81, 82) having a humidity control passageway (85) capable of adsorption of moisture from a first air stream and of release of moisture to a second air stream, and which provides an air stream, the humidity of which is conditioned in the adsorptive element (81, 82), to an indoor space. In the humidity control device, the adsorptive element (81, 82) is provided with an auxiliary passageway (86) through which a heating fluid flows when the adsorptive element (81, 82) is regenerated by releasing moisture to a second air stream from the humidity control passageway (85). As a result, during regeneration of the adsorptive element (81, 82) by releasing moisture to a second air stream, the amount of release moisture is increased, thereby enhancing the device performance.

Abstract: A humidity controller includes a differential pressure detection means (93, 97) for detecting a difference between high voltage and low voltage in a refrigeration cycle of a refrigerant circuit (50) and a control means (30) for controlling the capacity of the compressor (53). The control means (30) reduces the capacity of the compressor (53) when a detected value of the differential pressure detection means (93, 97) exceeds a reduction threshold. Further, the control means (30) stops the compressor (53) when the detected value of the differential pressure detection means (93, 97) exceeds a stop threshold higher than the reduction threshold.

Abstract: A new and unique apparatus for extracting water out of humid air is disclosed. There is also disclosed utilization of the apparatus and method in a specific and unique design so as to establish building blocks in building construction in order to cool indoor air in spaces in which the designated building blocks are combined.

Abstract: A thermodynamic closed loop desiccant rotor system and process utilizes at least one closed recirculation loop that provides interchangeable energy directly to the desiccant material and various rotor isolated zoning configurations in combination with various arrangements of energy exchange devices and refrigeration components to maximize the interchangeable and recovered energy capability and capacity through both closed thermodynamic cycles and open cycle processes for significantly improved efficiency and energy conservation. The present desiccant rotor system may be utilized in an air conditioning system for dehumidification, humidification, moisture removal, and capture of moisture, and in other applications to remove unwanted gases.

Abstract: A cooling system in which an electronic device or other component is cooled by using one or more solid sources of liquid vapor (such as polymeric absorbents, hydrates or desiccants that desorb water at comparatively low temperature) in conjunction with one or more high-temperature vapor sorbents or desiccants that effectively transfer heat from the component to the fluid in the wellbore. Depending on the wellbore temperature, desiccants are provided that release water at various high regeneration temperatures such as molecular sieve (220-250° C.), potassium carbonate (300° C.), magnesium oxide (800° C.) And calcium oxide (1000° C.). A solid water source is provided using a water-absorbent polymer, such as sodium polyacrylate. Heat transfer is controlled in part by a check valve selected to release water vapor at a selected vapor pressure.

Abstract: A dehumidifier includes a main body case that defines an inner space and is provided at a side with an external air inlet, a barrier dividing the inner space, a main body base that is formed on a lower end of the barrier to define an outer appearance of a lower portion of the main body, a plurality of heat exchangers that are disposed at a side of the barrier to allow circulation air circulating the inner space to be heat-exchanged with external air introduced from an external side, a drain pan for temporally storing condensed water generated from the heat exchangers, and a water tank that stores the condensed water supplied from the drain pan when being inserted in the main body base.

Abstract: The control means (41 and 42) cause the air conditioner to start air temperature control when temperature To of the outdoor air is in a pre-set range at the time of starting the air conditioning system (1), after the lapse of a pre-set time since the humidity controller (10) started adjusting air humidity. The room temperature nears the humidity set value Rs during the time air temperature control is started in the air conditioner (20).

Abstract: An autonomous water source for extracting water from ambient air and delivering it to a plant to support growth. The system is based on an adsorption-desorption-condensation cycle using a sorption material to extract moisture from ambient air and condensing the water vapor driven off from the sorption material by subsequent heating and followed by condensation. Liquid condensate produced in this process on the condenser is collected and delivered by gravity to a plant to reduce thermal stress and to support growth. The invention provides a sustainable source of irrigation water for agriculture and forestry, including areas where no water resources exist or are not economically viable. It can be tailored in size, and therefore, output capacity, reflecting the desired water requirements of a particular application, and can be used to replace most agricultural situations now reliant on surface water drip feed systems.

Abstract: A dehumidifier by which the rate of heat recovery by the heat exchanger for recovering heat can be increased, the power consumption of the heater can be decreased, and by which the amount of dehumidification per a power consumption can be promoted, is disclosed. The dehumidifier 1 comprises a rotor case 31 harboring a dehumidification rotor 2 rotatably and drivably mounted therein, having an opening for dehumidification 38 through which air to be dehumidified passes, and having an opening for regeneration 39 through which air for regeneration passes; a heater 5 for heating the air for regeneration before passing through the opening for regeneration; a heat exchanger for recovering heat 7 which transfers heat of the air for regeneration passing through the second passage section to the air for regeneration passing through the first passage section; a dehumidification passage X harboring a dehumidification fan 3; and a regeneration passage Y harboring a regeneration fan 4.

Abstract: In combination with a toilet tank of a toilet in a bathroom, the improvement comprising a dehumidifier having a predetermined shape for one of being wall mounted or disposed on a top of such toilet tank. A humidity sensor is disposed one of on and in the dehumidifier for sensing humidity in such bathroom. A tray member is disposed one of on and in the dehumidifier for collecting water removed from air by such dehumidifier. A flexible member is engageable on a first end thereof with the tray member for removing and transporting such water collected by the dehumidifier and for disposing such water into the toilet tank. There is, also, a power member engageable with the dehumidifier and the humidity sensor for providing electrical power to such apparatus.

Abstract: A humidity control system (10) includes a refrigerant circuit (50) to which two adsorption heat exchangers (51, 52) are connected. In the humidity control system (10), air is humidified in the adsorption heat exchanger (51, 52) working as the condenser while air is dehumidified in the adsorption heat exchanger (51, 52) working as the evaporator. If during the dehumidification operation the actually measured value of the room temperature is lower than the selected value of the room temperature or if during the humidification operation the actually measured value of the room temperature is higher than the selected value of the room temperature, the performance of a compressor (53) is controlled such that the actually measured value of the room temperature equals the selected value of the room temperature.

Abstract: Subjects for the invention are to provide a zeolite reduced in performance deterioration in repetitions of use or during long-term use and a process for producing the same and to provide an adsorbent comprising the zeolite and a heat utilization system or the like employing the adsorbent. The invention relates to a zeolite which has a framework density of from 10 T/nm3 to 16 T/nm3 and a carbon content of from 1% by weight to 6% by weight and satisfies the following (1) or (2): (1) the zeolite is an aluminophosphate which has a nitrogen content of from 0.5% by weight to 12% by weight and in which the aluminum may be partly replaced by Me; (2) the zeolite is a silicoaluminophosphate in which the aluminum may be partly replaced by Me and which, when burned to a carbon content lower than 0.

Abstract: A humidity control system (10) includes a refrigerant circuit (50) including a compressor (53), a first adsorption heat exchanger (51) carrying an adsorbent thereon, an expansion valve (55) adjustable in opening and a second adsorption heat exchanger (52) carrying an adsorbent thereon, supplies humidity-controlled air to a room by operating alternately in a first batch mode in which the second adsorption heat exchanger (52) adsorbs moisture in air and the first adsorption heat exchanger (51) releases moisture to air and a second batch mode in which the first adsorption heat exchanger (51) adsorbs moisture in air and the second adsorption heat exchanger (52) releases moisture to air, and controls the opening of the expansion valve (55), when a valve control start time has come a predetermined time after the start of each batch mode, so that the degree of superheat of refrigerant in the refrigerant circuit (50) reaches a predetermined value.

Abstract: An air conditioning system (1) including a demand control device (10) that controls the total amount of the working power of a plurality of air conditioning loads is provided with, in order to improve comfortableness under demand control, an air conditioner (20) including a refrigerant circuit and dominantly processes an indoor sensible heat load and a humidity controller (30) which includes adsorption members (32, 33) and dominantly processes a latent heat load. According to a set level of a plurality of demand control levels, the evaporation temperature of the refrigerant circuit composing the air conditioner (20) is controlled while the indoor humidity is adjusted by the humidity controller (30).

Abstract: A cooling recover system and method are disclosed. A fluid, such as water, is chilled and provided to a cooling coil to cool and dehumidify air passing over the cooling coil. The fluid is output from the cooling coil through an outlet, and at least a portion of the fluid from the outlet of the cooling coil is provided to an inlet of a heat transfer coil to reheat air passing over the heat transfer coil. The fluid is warmed as it passes through the cooling coil, which warmer temperature serves to reheat the air passing over the heat transfer coil.

Abstract: A moisture absorbing product, particularly for use in containers or railcars, includes a desiccant container including a plurality of separate desiccant holding compartments, each containing a quantity of desiccant material, a support over which the desiccant material is placed, a sheeting material, which substantially covers the desiccant container and which is permeable to gaseous water vapor but substantially impermeable to liquid water, and a strap with hook, secured to or within the support or desiccant container, which strap and hook are useful for hanging the moisture absorbing product within the container or railcar.

Abstract: Provided is a desiccant dehumidifier characterized in that: external air is introduced through a cooling coil and an eliminator; the introduced external air is bifurcated into a desiccant rotor and a bypass line in front of the desiccant rotor; the external air bifurcated to the desiccant rotor passes through the desiccant rotor disposed at a dehumidifying section to perform dehumidification, and the bypass air passed through the bypass line is mixed with the air passed through the desiccant rotor behind the desiccant rotor to form suction air to be supplied through a suction fan; and a part of the external air bifurcated to the desiccant rotor passes through the desiccant rotor disposed at a purge section, and then passes through the desiccant rotor disposed at a recycling section via a recycling heater to form exhaust air to be exhausted through an exhaust fan, wherein ventilation air is introduced through a separate path on a path through which the external air is introduced and then mixed with the externa

Abstract: Heat exchangers of a refrigerant circuit 50 are constructed of a first adsorption heat exchanger 51 and a second adsorption heat exchanger 52, both of which have an adsorbent supported thereon, and are constructed so as to be switched into an evaporator and a condenser. An air passage 60 is constructed so as to be switched into states in which air flowing from the outside of a room to the inside of the room and air flowing from the inside of the room to the outside of the room flow through either of the first adsorption heat exchanger 51 and the second adsorption heat exchanger 52.

Abstract: The invention concerns a desiccant box for dehumidifying air, with a cylindrical outer housing (10), a lid (11) that closes the outer housing, and an inner housing (12) to accommodate desiccant (13). The lid (11) features at least one inflow opening (14) and at least one outflow opening (15), the contour of the outer housing opposite the lid being curved. Moreover, another inner housing (17) is provided which is located in the area of the contour (16) and runs approximately along this contour, this inner housing being also filled with desiccant (18), and the two inner housings (12 and 17) being connected to each other.

Abstract: An energy recovery unit has an energy recovery wheel located in a plenum. Expelled air from the return duct is delivered to the plenum and after passing through the wheel is expelled by an exhaust fan through a side wall. Makeup air is delivered to the plenum and after passing through the wheel is supplied to the return duct by a fan. The makeup air follows a serpentine path from an intake in a side wall to the return duct.

Abstract: A dehumidifier includes a main body case that defines an inner space and is provided at a side with an external air inlet, a top panel that is installed to form a spaced gap through which air heat-exchanged discharges on a top of the main body case, a barrier dividing the inner space, and a plurality of heat exchangers that are disposed at a side of the barrier to allow circulation air circulating the inner space to be heat-exchanged with external air introduced from an external side.

Abstract: A humidity controller apparatus (10) includes a refrigerant circuit provided with first and second heat exchangers (61, 62). An adsorbent is supported on the surface of each of the first and second heat exchangers (61, 62). The refrigerant circuit is configured to allow for switching of the circulation direction of a refrigerant by operation of a four-way selector valve. In addition, in the humidity controller apparatus (10), a switching mechanism (50) switches the distribution routes of air streams. The humidity controller apparatus (10) operates the four-way selector valve and the switching mechanism (50), whereby a first air stream is dehumidified in the heat exchanger (61) or (62), whichever is acting as an evaporator while, on the other hand, a second air stream is humidified in the heat exchanger (61) or (62), whichever is acting as a condenser.

Abstract: A dehumidification unit comprised of alternate laminations of an adsorption element which supports an adsorbent and which is provided with a first air ventilation passage and a cooling element, which is provided with a second air ventilation passage. The first air ventilation passage of the adsorption element and the second air ventilation passage of the cooling element are adjacently formed, with a single plate member lying between the first and second air ventilation passages. As a result of such arrangement, as compared with a structure formed with two plate members lying therebetween second air ventilation passages, the performance of heat transfer between the air ventilation passages is further improved, whereby the dehumidification capability of the dehumidification unit is maintained at high levels over a long period of time.

Abstract: A system and method for managing water content in a fluid includes a collection chamber for collecting water from the fluid with a desiccant, and a regeneration chamber for collecting water from the desiccant and transferring it to a second fluid. An evaporator cools the desiccant entering the collection chamber, and a second evaporator cools the second fluid to extract the water. The evaporators use a refrigerant, the flow of which is controlled by a flow control valve. When the temperature in the second evaporator drops below a set point, the refrigerant flow to the second evaporator is stopped, and the refrigerant flow to the first evaporator is increased. This increases the water collection in the collection chamber, and causes a rise in the temperature in the second evaporator. The valve is then opened to increase the cooling in the second evaporator.