Abstract: A cooling assembly includes an evaporator containing a primary cooling medium, a passive condenser, and a heat exchanger. When a secondary cooling medium is provided to the heat exchanger, the primary cooling medium in the gas phase switches from being received by the passive condenser to the heat exchanger without operating any valves located between the evaporator and the passive condenser and between the evaporator and the heat exchanger. The primary cooling medium circulates between the evaporator and the passive condenser and between the evaporator and the heat exchanger by natural circulation and gravity without a pump in the flow path of the primary cooling medium between the heat exchanger and the evaporator and between the passive condenser and the evaporator to circulate the primary cooling medium.

Abstract: A cooling assembly includes an evaporator containing a primary cooling medium, a passive condenser, and a heat exchanger. When a secondary cooling medium is provided to the heat exchanger, the primary cooling medium in the gas phase switches from being received by the passive condenser to the heat exchanger without operating any valves located between the evaporator and the passive condenser and between the evaporator and the heat exchanger. The primary cooling medium circulates between the evaporator and the passive condenser and between the evaporator and the heat exchanger by natural circulation and gravity without a pump in the flow path of the primary cooling medium between the heat exchanger and the evaporator and between the passive condenser and the evaporator to circulate the primary cooling medium.

Abstract: A cooling assembly includes an evaporator containing a primary cooling medium, a passive condenser, and a heat exchanger. When a secondary cooling medium is provided to the heat exchanger, the primary cooling medium in the gas phase switches from being received by the passive condenser to the heat exchanger without operating any valves located between the evaporator and the passive condenser and between the evaporator and the heat exchanger. The primary cooling medium circulates between the evaporator and the passive condenser and between the evaporator and the heat exchanger by natural circulation and gravity without a pump in the flow path of the primary cooling medium between the heat exchanger and the evaporator and between the passive condenser and the evaporator to circulate the primary cooling medium.

Abstract: An airstream cooling assembly includes an evaporator and a first and second condenser. The evaporator is configured to have a first airstream directed over its outer surface and to change the phase of a primary cooling medium from liquid to gas. The first condenser is configured to have a second airstream directed over its outer surface, transfer heat from the primary cooling medium, and change the phase of the primary cooling medium from gas to liquid. The second condenser is configured to accept a secondary cooling medium, and when accepting the secondary cooling medium, to receive the primary cooling medium from the evaporator, transfer heat from the primary cooling medium, and change the phase of the primary cooling medium from gas to liquid. The evaporator is configured to receive the primary cooling medium in the liquid phase from at least one of the first condenser and the second condenser.

Abstract: A cooling assembly includes an evaporator containing a primary cooling medium, a passive condenser, and a heat exchanger. When a secondary cooling medium is provided to the heat exchanger, the primary cooling medium in the gas phase switches from being received by the passive condenser to the heat exchanger without operating any valves located between the evaporator and the passive condenser and between the evaporator and the heat exchanger. The primary cooling medium circulates between the evaporator and the passive condenser and between the evaporator and the heat exchanger by natural circulation and gravity without a pump in the flow path of the primary cooling medium between the heat exchanger and the evaporator and between the passive condenser and the evaporator to circulate the primary cooling medium.

Abstract: An air handling system includes a movable evaporative media section. The movable evaporative media section is movable between a closed position and an open position. When the movable evaporative media section is in an open position, the movable evaporative media section exposes an opening to the air flow and is positioned to allow at least a portion of the air flow in the volume to flow around the movable evaporative media section and through the opening.

Abstract: In conditioning air for an enclosure, a first ambient airstream is cooled by the cooling coil of a refrigerant cooling system to reduce its temperature and humidity content. The thus cooled and dehumidified air is then passed through a segment of a rotating desiccant wheel to reduce moisture content and increase temperature and is then supplied to the enclosure. The desiccant wheel is regenerated by the use of a second ambient airstream which is first heated with the condenser coil of the refrigerant system and then passed through the regeneration segment of the desiccant wheel. A bypass plenum is provided in the apparatus that selectively allows a third ambient airstream to be cooled in the plenum independent of the evaporator coil and desiccant wheel in the first plenum. That airstream is then supplied with the air treated in the first plenum to the enclosure.

Abstract: In a method and apparatus for conditioning air for an enclosure, a first ambient air stream is cooled by the cooling coil of a refrigerant cooling system to reduce its temperature and humidity content. The thus cooled and dehumidified air is then passed through a segment of a rotating desiccant wheel to reduce moisture content and increase temperature and is then supplied to the enclosure. The desiccant wheel is regenerated by the use of a second ambient air stream which is first heated with the condenser coil of the refrigerant system and then passed through the regeneration segment of the desiccant wheel. A bypass plenum is provided in the apparatus that selectively allows a third ambient air stream to be cooled in the plenum independent of the evaporator coil and desiccant wheel in the first plenum. That air stream is then supplied with the air treated in the first plenum to the enclosure.

Abstract: An air handling system includes a movable evaporative media section. The movable evaporative media section is movable between a closed position and an open position. When the movable evaporative media section is in an open position, the movable evaporative media section exposes an opening to the air flow and is positioned to allow at least a portion of the air flow in the volume to flow around the movable evaporative media section and through the opening.

Abstract: An air handling system includes a movable evaporative media section. The movable evaporative media section is movable between a closed position and an open position. When the movable evaporative media section is in an open position, the movable evaporative media section exposes an opening to the air flow and is positioned to allow at least a portion of the air flow in the volume to flow around the movable evaporative media section and through the opening.

Abstract: An evaporative cooling system includes a primary cooling unit that utilizes a cooling fluid flowing through a primary heat exchange medium to cool supply air flowing past the primary heat exchange medium, a bleed line and a secondary cooling unit disposed upstream of the primary cooling unit with respect to a flow direction of the supply air. The primary cooling unit includes a supply line for supplying the cooling fluid to the primary heat exchange medium, a reservoir for collecting the cooling fluid supplied to the primary heat exchange medium, and a pump for recirculating the cooling fluid collected in the reservoir back to the supply line. The bleed line bleeds a portion of the recirculating cooling fluid from the primary cooling unit. The secondary cooling unit includes a secondary heat exchange medium that receives the cooling fluid bled from the primary cooling unit through the bleed line.

Abstract: An airstream cooling assembly includes an evaporator and a first and second condenser. The evaporator is configured to have a first airstream directed over its outer surface and to change the phase of a primary cooling medium from liquid to gas. The first condenser is configured to have a second airstream directed over its outer surface, transfer heat from the primary cooling medium, and change the phase of the primary cooling medium from gas to liquid. The second condenser is configured to accept a secondary cooling medium, and when accepting the secondary cooling medium, to receive the primary cooling medium from the evaporator, transfer heat from the primary cooling medium, and change the phase of the primary cooling medium from gas to liquid. The evaporator is configured to receive the primary cooling medium in the liquid phase from at least one of the first condenser and the second condenser.

Abstract: An air handling system includes a movable evaporative media section. The movable evaporative media section is movable between a closed position and an open position. When the movable evaporative media section is in an open position, the movable evaporative media section exposes an opening to the air flow and is positioned to allow at least a portion of the air flow in the volume to flow around the movable evaporative media section and through the opening.

Abstract: A hybrid dehumidification system for controlling the humidity and/or both humidity and temperature in a space includes a cooling coil for first cooling, or cooling and reducing the humidity of, an airstream to be supplied to the space with an aqueous cooling medium, passing the thus cooled airstream through a desiccant adsorption means to further reduce the humidity of the airstream before supplying the airstream to the space, and regenerating the desiccant adsorption means by heating the desiccant with waste heat from a heat pump used to further cool the first aqueous cooling medium.

Abstract: An evaporative cooling system includes a heat exchange medium for receiving cooling fluid to cool supply air flowing past the heat exchange medium, a cooling fluid source for supplying fresh cooling fluid, a supply line communicating with the cooling fluid source for supplying the cooling fluid to the heat exchange medium, a return reservoir for collecting the cooling fluid supplied to the heat exchange medium, and a pump provided in the supply line for recirculating the cooling fluid collected in the reservoir into the supply line so as to provide recirculated cooling fluid along with fresh cooling fluid to the heat exchange medium. The pump can be in the form of an eductor.

Abstract: An evaporative cooling system includes a primary cooling unit that utilizes a cooling fluid flowing through a primary heat exchange medium to cool supply air flowing past the primary heat exchange medium, a bleed line and a secondary cooling unit disposed upstream of the primary cooling unit with respect to a flow direction of the supply air. The primary cooling unit includes a supply line for supplying the cooling fluid to the primary heat exchange medium, a reservoir for collecting the cooling fluid supplied to the primary heat exchange medium, and a pump for recirculating the cooling fluid collected in the reservoir back to the supply line. The bleed line bleeds a portion of the recirculating cooling fluid from the primary cooling unit. The secondary cooling unit includes a secondary heat exchange medium that receives the cooling fluid bled from the primary cooling unit through the bleed line.

Abstract: An evaporative cooling system includes a primary cooling unit that utilizes a cooling fluid flowing through a primary heat exchange medium to cool supply air flowing past the primary heat exchange medium, a bleed line and a secondary cooling unit disposed upstream of the primary cooling unit with respect to a flow direction of the supply air. The primary cooling unit includes a supply line for supplying the cooling fluid to the primary heat exchange medium, a reservoir for collecting the cooling fluid supplied to the primary heat exchange medium, and a pump for recirculating the cooling fluid collected in the reservoir back to the supply line. The bleed line bleeds a portion of the recirculating cooling fluid from the primary cooling unit. The secondary cooling unit includes a secondary heat exchange medium that receives the cooling fluid bled from the primary cooling unit through the bleed line.

Abstract: A method for sorbing a gas using an ionic liquid to sorb a vapor having an electric multi-pole moment. The ionic liquid comprises an anion and a cation. The electric multi-pole moment may be an electric dipole moment and/or an electric quadru-pole moment. The sorption may be an adsorption or an absorption. The ionic liquid may be a liquid that substantially contains only anions and cations, while not containing other components, such as water. Alternatively, a solution containing the ionic liquid and a solvent or further compound, such as water, may be used.

Abstract: A method and apparatus for removing water vapor from the flue gas stream of an industrial process, including flue gas from a power station. The apparatus including a moisture transfer device, a cooling device, and an optional enthalpy exchange device. The method including running high volumes the flue gas through the moisture transfer device, the cooling device, and the enthalpy exchange device to remove substantially all of the water vapor from the flue gas stream. Also, a method and apparatus for capturing CO2 from flue gas with very low water vapor content. The apparatus including one or more towers packed with a solid sorbent, or including a liquid sorbent. The CO2 from the water vapor free CO2 stream is sorbed by the sorbent and captured for later use.

Abstract: A method and apparatus for removing water vapor from the flue gas stream of an industrial process, including flue gas from a power station. The apparatus including a moisture transfer device, a cooling device, and an optional enthalpy exchange device. The method including running high volumes the flue gas through the moisture transfer device, the cooling device, and the enthalpy exchange device to remove substantially all of the water vapor from the flue gas stream. Also, a method and apparatus for capturing CO2 from flue gas with very low water vapor content. The apparatus including one or more towers packed with a solid sorbent, or including a liquid sorbent. The CO2 from the water vapor free CO2 stream is sorbed by the sorbent and captured for later use.