Abstract: A multifunctional ventilating fan comprises a machine body, a panel provided with an air inlet and an air outlet. The machine body includes a first area, a second area, and a third area separated by several partition plates. The first area is provided with a first heat exchanger and a ventilating blower. A exhaust port of the ventilating blower is communicated with the outdoor. The second area is provided with a second heat exchanger and a circulating blower. The third area is provided with a compressor. The air inlet of the panel is communicated with the first area to form a first air path. The air inlet of the panel, the first area, the second area and the air outlet of the panel are communicated in turn to form a second air path. A first valve is provided in the second air path for isolating the first area so that a third air path is formed by the air inlet of the panel, the second area and the air outlet of the panel communicated in turn.

Abstract: A modular water source geothermal heat pump unit is provided. The water source geothermal heat pump unit comprises separate fan, compressor and coil modules. In one embodiment, the compressor module may be located between the fan and coil modules. In another embodiment the water source geothermal heat pump unit may be a monolithic unit that includes a fan that directs air through a chute located adjacent a compressor. The chute may also be located between the fan and a coil.

Abstract: The present invention relates to a cooling and heating cabinet device of a rear seat side for a vehicle using a thermoelectric module that is mounted between rear seats of a vehicle, having cooling and heating functions and further having an arm-resting function irrespective of its activation as the cooling and heating device, and that makes the exhaust fan activated by the control of the controller of the air conditioning system, thereby achieving the air-refreshing function as well as the cooling or heating mode function of the cooling and heating cabinet.

Abstract: An arrangement is provided for de-icing pipeline connections of an aircraft, which are connected to all fresh air outlets of an air conditioner, whose construction includes, but is not limited to the functions of multiple turbines and heat exchangers, having a first pipeline, which is connected to a first turbine, and a second pipeline, which is connected to a second turbine, the two pipelines, which are each connected downstream from the two turbines and to which process air is fed at the turbine outlets, being connected at the pipe ends and being continued using a third pipeline. The arrangement is characterized in that a first hot air source is fed hot fresh air from a bleed air system of the aircraft and is connected at its outlet to a fourth pipeline, into which temperature-reduced fresh air is fed from the hot air source.

Abstract: The invention relates to a heat pump system (10) comprising a heat pump (5) so arranged as to permit the taking up of thermal energy from outdoor air and the giving off of thermal energy to another medium (20), and an external space (2) adapted to permit heating of the outdoor air by the use of solar radiation (12), the system (10) being so arranged as to conduct the outdoor air to the heat pump (5) via the external space (2). The invention is characterized in that the heat pump system (10) comprises means (3, 6, 7, 7a, 7b, 9) for regulating the flow of the outdoor air to the external space (2).

Abstract: The invention relates to an improved heat recovery system which is intended for air-conditioning and to reduce the cold corridor effect. More specifically, the invention relates to a system for making use of heat that is released during the condensing and/or cooling of a refrigerant fluid, in order subsequently to heat an airflow passing through an open retail refrigeration cabinet or lines of same, using a specially-designed unit for distributing and supplying heated air. The inventive assembly is equipped with a regulation and control device which can be used to maintain acceptable comfort levels for customers in the areas surrounding said open retail refrigeration cabinets or lines of same. The inventive system represents a significant improvement in relation to the design of the previously-patented system.

Abstract: A hybrid vehicle comprises an internal combustion engine, a traction motor, a starter motor, and a battery bank, all controlled by a microprocessor in accordance with the vehicle's instantaneous torque demands so that the engine is run only under conditions of high efficiency, typically only when the load is at least equal to 30% of the engine's maximum torque output. In some embodiments, a turbocharger may be provided, activated only when the load exceeds the engine's maximum torque output for an extended period; a two-speed transmission may further be provided, to further broaden the vehicle's load range. A hybrid brake system provides regenerative braking, with mechanical braking available in the event the battery bank is fully charged, in emergencies, or at rest; a control mechanism is provided to control the brake system to provide linear brake feel under varying circumstances.

Abstract: Noise occurring in an upright air-conditioning unit is greatly reduced. An upright air-conditioning unit 1 is disposed under a steering member support part 23, a vent opening 15 and a vent outlet port 20 are made to communicate with each other via a vent duct 25, a defrost opening 16 and a defrost outlet port 21 are made to communicate with each other via a defrost duct 26. The vent opening 15 assumes a position further frontward than the steering member support part 23 along the frontward/rearward direction relative to the vehicle body whereas the defrost opening 16 assumes a position further rearward than the steering member support part 23 along the frontward/rearward direction relative to the vehicle body.

Abstract: An air conditioning system includes an air-conditioner casing, an air blower, a cooling heat exchanger, a heating heat exchanger, and a bypass passage. An electric motor of the blower has a rotating shaft that extends along a rotating shaft axis. An impeller of the blower suctions air from one side of the impeller along the rotating shaft axis to blow air in a radial direction of the impeller. The bypass passage causes cold air to bypass the heating heat exchanger. The air blower is located. downstream of the cooling heat exchanger and the heating heat exchanger in a flow direction of air. The cooling heat exchanger and the heating heat exchanger are arranged in parallel with each other. The air blower is positioned on an imaginary extension of the heating heat exchanger. The rotating shaft is disposed in parallel with the heating heat exchanger.

Abstract: A solid fuel, portable stove reduces smoke emissions and provides for a high temperature of combustion in a compact and easily manufacturable design. A main housing (11) comprises a combustion chamber (12) for containing fuel for combustion and a fan (50) configured to force air into the combustion chamber. A rechargeable electrical power source (40) is used for driving the fan (50) and a thermoelectric (31) provides power to the fan and to the rechargeable power source. In one embodiment, the thermoelectric element also provides excess output power to a connected device (D) such as a low voltage white light emitting diode, thereby providing a self illuminating, rechargeable stove which is suitable for sunset or early evening cooking.

Abstract: The disclosed embodiments relate to a system and method that is adapted to cool a heat generating device. An electronic device in accordance with an exemplary embodiment of the present invention comprises an enclosure that contains a source of heat, and a cooling structure adjacent to the enclosure, the cooling structure being adapted to draw an internal intake comprising heat generated by the source of heat and to draw an external intake from outside the enclosure, the cooling structure being further adapted to combine the internal intake with the external intake to form an exhaust.

Abstract: An efficient thermal management system (100) that utilizes a single heat exchanger (133) is provided. A refrigeration subsystem (103) cools the heat exchanger (133). A first coolant loop (139) in thermal communication with the heat exchanger (133) is used to cool the energy storage system (137). A second coolant loop (151) corresponding to the HVAC subsystem (107) is also in thermal communication with the heat exchanger (133). Preferably a third coolant loop (109) corresponding to the drive motor cooling subsystem (101) is coupleable to the HVAC coolant loop (151), thus providing an efficient means of providing heat to the HVAC subsystem (107).

Abstract: The invention relates to an actuating device comprising an operating control for positioning actuating elements, in particular in a heating or air conditioning unit and to a heating or air conditioning unit, in particular of a motor vehicle, comprising an actuating device.

Abstract: In an air conditioner, air-supply passages cross air-discharge passages, and heat exchangers are disposed at intersections between the air-supply passages and the air-discharge passages. This increases the effective heat-exchanging areas of the heat exchangers. In addition, the air conditioner is configured such that the air conditioner can be easily installed and repaired even when the air conditioner is rotated to be properly connected with air-supply ducts and air-discharge ducts.

Abstract: 1. In the heating system, air used in the combustion of fuel such as natural gas, propane or oil can be preheated by use of a heat exchanger and passing of flue gas through a heat exchanger to preheat the air. This method can also be used for dryers and ovens to reheat the air by use of heat exchanger. In the heating system, use of air sucked from the soil is preferred, which is warmer than the outside air during winter season. This air is further heated by circulating through a heat exchanger to recover heat from the existing flue gases. After warming the air, it is used in the combustion of natural gas, propane or oil. This method prevents suction of cold air from outside to replace air used in the combustion in a furnace in a home or a building, which exit through a stack or chimney as flue gas.

Abstract: An air directing apparatus includes a base defining a component housing. A baffle member is moveably coupled to the base and operable to move into and out of the component housing such that the baffle member may engage a component located in the component housing. An air directing member is located on the baffle member, whereby the air directing member is operable to direct an airflow towards a high heat producing feature on the component when the baffle member engages the component. The apparatus may be located adjacent connectors in a chassis that may either be empty or include components such that airflow from a fan is blocked past empty connectors and directed towards high heat producing features on components that are located in connectors.

Abstract: A self-contained, fully-integrated, energy efficient heating and cooling system or apparatus for conditioning the air on the interior of a building which includes a means for creating airflow through the apparatus, a section for cooling the airflow, a section for heating the airflow, a means for directing the airflow into the cooling section or into the heating section, a reheat device for tempering (i.e., reheating) the airflow exiting the cooling section, a return air section for receiving air returned to the apparatus from the building interior, and a means for pulling the returned air out of the return air section and venting the returned air to the environment outside of the building. The heating section of the present invention also provides a “four-pass” heat exchanger which may be assembled from sections of cast iron or other suitable materials, and a high efficiency combustion burner which may be integrated into the four-pass heat exchanger.

Abstract: Ventilator including a case having a first flow passage and a second flow passage therein, at least one fan in the case for supplying room air to a room through the first flow passage, and guiding outdoor air to the room through the second flow passage, and a heat exchanger in the case, the heat exchanger having a working fluid therein for repeating evaporation (heat absorption) and condensing (heat dissipation) by a temperature difference of the air flowing through the first flow passage and the second flow passage, for making the air flowing through the first flow passage and the air flowing through the second flow passage to heat exchange, thereby providing a ventilator which is thin, can be installed conveniently, and can recover a thermal energy from room air, and reduce a pressure loss and noise.

Abstract: A known heat exchanger has a lower rate of blocking the movement of moisture through the joint as compared to a joint bonded with a moisture impermeable adhesive because the corrugated and flat substrates are bonded with thermoplastic fibers by performing heating and pressurizing treatments, but has insufficient moisture permeability because both the flat substrate, which is a partition, and the corrugated substrate, which is a space retaining plate, have a poor moisture permeability. In a heat exchanger in which two types of air flows are directed across a moisture permeable partition plate spaced apart from an adjacent partition plate by a space retaining plate, and perform heat exchange between them through the partition plate, a joint is formed by bonding the partition plate and the space retaining plate using fluoro-resin or hydrocarbon resin containing a hydrophilic group to provide an excellent moisture absorption and diffusion property.

Abstract: An apparatus for conditioning of air has an air inlet and an air outlet. The apparatus includes a heat exchanger, having a major longitudinal axis and having a shell through which an airflow is forced to circulate, and an exchange coil, fitted within the shell, which contains a heat exchange fluid. The heat exchange is simultaneously, parallel and longitudinal to the air transport, along the major heat exchanger's longitudinal axis. A fan, associated with a motor, produces the flow of air to be conditioned. The fan has an air inlet and an air outlet connected to the heat exchanger. At least one silencer is coupled to the entrance or to the exit of air.

Abstract: In accordance with an embodiment of the invention, an integrated air processing device includes a housing defining an air inlet, an air outlet, and a pathway from the inlet to the outlet. An air decontamination section, an air conditioning section, and a heating section are provided along the pathway. A blower is also provided along the pathway, to drive air from the inlet to the outlet, along the pathway. In another example, an integrated air processing device includes a housing as above, and an air conditioning section and a heating section along the pathway. An air decontamination section and/or a blower may also be provided along the pathway. In accordance with another embodiment, a portable isolation containment system includes one or more portable containment enclosures coupled to the integrated air processing devices described above. Methods are disclosed, as well.

Abstract: A self-contained, fully-integrated, energy efficient heating and cooling system or apparatus for conditioning the air on the interior of a building which includes a means for creating airflow through the apparatus, a section for cooling the airflow, a section for heating the airflow, a means for directing the airflow into the cooling section or into the heating section, a reheat device for tempering (i.e., reheating) the airflow exiting the cooling section, a return air section for receiving air returned to the apparatus from the building interior, and a means for pulling the returned air out of the return air section and venting the returned air to the environment outside of the building. The heating section of the present invention also provides a “four-pass” heat exchanger which may be assembled from sections of cast iron or other suitable materials, and a high efficiency combustion burner which may be integrated into the four-pass heat exchanger.

Abstract: An apparatus for ventilation systems includes an element for the transfer of heat from warm exhaust air (taken from inside a building) to cooler exterior fresh air which is drawn into the building. The present invention in particular provides an apparatus whereby, during a defrost cycle, interior air may circulate through both of the fresh air and exhaust air paths for delivery back into the building, i.e. the warm interior air, used as defrost air, may be able to circulate from the interior of the building into the ventilation apparatus and back to the interior of the building. The apparatus can thus use interior air as defrost air while diminishing or avoiding the creation of a negative air pressure in the building.

Abstract: A drum type heat exchanger for effectively ventilating and purifying room air of a factory, a building or a house and the like is described. The drum type heat exchanger has heat transfer means with a drum shape and thus an entire size is reduced as much as possible and become compact, such that a handling and an installation is easy, a thermal efficiency to an installation space of the heat transfer means is maximized, and overall maintenance and repair such as a check or exchange of the heat transfer means are easy. Additionally, the drum type heat exchanger uses a drum with a short radius of rotation so that an entire operation cycle time is shortened and a heat transfer area is sufficiently secured in order to keep the thermal efficiency high.

Abstract: A heating and cooling apparatus comprises a generally hollow heating and cooling tower body having a ceiling part for receiving solar heat and a columnar part for storing the solar heat received by the ceiling part. The columnar part has a lower portion adapted to be positioned in the ground for receiving a flow of cool air from the ground and a heat absorbing-and-radiating section for absorbing and radiating heat to heat the heating and cooling tower body using the stored solar heat and to cool the heating and cooling tower body using the flow cool air from the ground.

Abstract: Systems and methods for weatherproof cabinets with variably cooled compartments are provided. One such embodiment includes a housing having a door attached thereto, and in which a cooling compartment and a battery compartment are disposed. An electronics compartment is disposed within the cooling compartment, and an external fan is also disposed within the housing. Methods are also provided for transferring heat from inside the electronics compartment to the cooling compartment, from the cooling compartment to the outside of the housing, and from the battery compartment to the outside of the housing.

Abstract: A cooling system is connected to a fuel cell stack which has a hydrogen inlet, an air inlet, a coolant inlet, a coolant outlet and an exhaust water outlet. The cooling system includes a heat exchange unit coupled to the coolant inlet and the coolant outlet, a coolant pump, and a blower for blowing air through the unit. An evaporator is exposed to the blown air, and a conduit communicates exhaust water from the exhaust water outlet to the evaporator. The exhaust water evaporates in and cools the blown air. The evaporator may be a wick mounted on an exterior surface of the heat exchange unit. The evaporator unit may include water injectors which spray exhaust water into the blown air. The injectors are mounted between a blower and a radiator. A removable porous evaporator element is mounted between the injectors and the radiator.

Abstract: A heat sink including a base defining a base plane extending in a longitudinal and a transversal direction is disclosed. The base has fins extending along the longitudinal direction and a way from the base plane. The base and the fins are arranged to allow airflow along the longitudinal direction. A front end of the fins facing the airflow has a surface shape enabling a substantially laminar airflow. The substantially laminar airflow is efficient to provide a good heat transfer between the heat sink and the air. The substantially laminar airflow is also relatively silent compared to a turbulent airflow.

Abstract: A dehumidifying air-conditioning apparatus comprises a pressurizer (4) for raising a pressure of a refrigerant, a condenser (5) for condensing the refrigerant to heat a high-temperature heat source fluid, and an evaporator (1) for evaporating the refrigerant to cool process air to a temperature lower than its dew point. A first heat exchanging portion (21) is disposed in a refrigerant path between the condenser (5) and the evaporator (1) for evaporating the refrigerant under an intermediate pressure between the condensing pressure of the condenser (5) and the evaporating pressure of the evaporator (1) to cool the process air by evaporation of the refrigerant under the intermediate pressure.

Abstract: A cold-storage appliance (2) includes an open-topped insulating container (16) defining an external surface; an insulating lid (22) adapted to close the open top of the container (16); a cooling means (24) adapted to cool the interior of the container (16); and a structure (4, 6) supporting the container (16), the lid (22) and the cooling means; wherein the container (16) is mounted to the structure (4) for movement relative to the structure (6) and the lid (22) to open the container (16) and afford access to its interior or to close the container (16). A circulating fan (340) or a heater (346) creating air currents to warm the external surface of the bin (16) warming of the external surfaces using heating elements (380).

Abstract: Systems and methods for weatherproof cabinets with multiple compartment cooling are provided. One such embodiment includes a housing in which an electronics compartment, a battery compartment, an internal fan, and an external fan are disposed. A door is attached to the housing, and a heat exchanging device is disposed within the cabinet. Methods are also provided.

Abstract: Systems and methods for weatherproof cabinets with variably cooled compartments are provided. One such embodiment includes a housing having a door attached thereto, and in which a cooling compartment and a battery compartment are disposed. An electronics compartment is disposed within the cooling compartment, and an external fan is also disposed within the housing. Methods are also provided.

Abstract: A unit ventilator is disclosed wherein, in order to facilitate service and repair of the ventilator and/or its component parts, such parts are mounted for ease of access and of detachment from, or assembly to, the system. Elemental system parts, such as the blower assembly, the heat transfer coil assembly, the condensate discharge pan and the air filters are designed and arranged so as to be assembled and/or disassembled from the system rapidly and with minimum use of tools.

Abstract: The invention relates to a ventilation device for ventilation room by room and/or zone by zone and comprises: a) a device casing (12), which is provided in or adjacent an outer wall of a building or the like and which connects room air to outside air, b) a heat-exchange (22) of counter flow type, provided in the casing (12) and transferring heat from the outgoing and in-going airflows, respectively, c) two fans (18,20) arranged in said casing (12), of which one is connected to the ingoing air duct (14) of the heat-exchanger (22) and the other to the outgoing air duct (16) of the heat-exchanger (22), d) at least one sensor (30) for determination of the airflow's relative deviation in velocity from a neutral value of the airflows passing through each respective duct (14, 16), and e) a control means (32), which, depending on the values given by the sensor (30), is arranged to regulate the rotation speed of the fans (18, 20), for the purpose of substantially balancing the airflow, so that it is substantially equa

Abstract: A ventilating device (1) comprises one or more impellers (2) extending in a longitudinal direction around an axis of rotation. Each of the impellers (2) is adapted to suck air from an ambient atmosphere in a transverse direction over a substantial part of the impeller's length. A coupling for transmitting a driving force from one impeller to another is disclosed. The ventilating device may be comprised in a unit with a cover (6) and a chassis, and it may be mounted to or around a heating or cooling pipe (3; 4) in a room of a building. A holding member (5) which may be connected to the cover (6) holds the pipe or pipes (3; 4) and/or one or more impellers (2). The device is easy to mount and may have improved energy efficiency. A building with a ventilating device, a method of operating the ventilating device, a system comprising a plurality of ventilating devices, and a mounting member for one or more pipes and/or one or more impellers are further provided.

Abstract: An HVAC system has two variable-air-volume (VAV) systems, a first VAV system for moving fresh air and a second VAV system for moving recycled air. Both the fresh air and recycled air are cooled and dehumidified by a single heat-exchanging coil. The fresh and recycled air streams travel independently in separate ducts until the air streams reach a remotely located mixing box where the air streams mix and ventilate into a room or zone of a building. The HVAC system uses carbon dioxide and temperature sensors in order to regulate the flow of fresh and recycled air to various mixing boxes throughout the building.

Abstract: A ventilation and dehumidification system for ventilating fresh air to a conditioned space. The system is comprised of a desiccant wheel for dehumidifying incoming air by exchanging moisture from an inflow current of air with an outflow current of air. The desiccant wheel is both regenerated and defrosted by a regenerative heater which is placed to heat the outflow current of air before the outflow current passes through the desiccant wheel. The system includes blowers in order to motivate the inflow and outflow currents of air. The system may also include heat recovery means such as a heat transfer wheel or a motionless heat transfer core. The blowers can be arranged so as to create an air pressure differential between the inflow chamber and the outflow chamber so that any leakage of air between the two chambers will occur from the inflow chamber to the outflow chamber.

Abstract: A conditioning apparatus for conditioning a treated fluid includes a conditioning chamber for containing a flow of a treated fluid and an exchange element disposed within said conditioning chamber having one or more fluid passages formed therein filled with a saline solution. The exchange element has a semi-permeable membrane that allows fluid transfer between said treated fluid and said saline solution through said semi-permeable membrane.

Abstract: A method which extends the useful life of a lead-acid type battery by applying conductive cooling or heating directly to the bottom surface of the battery to maintain the battery at a constant temperature of about 25° C. regardless of the ambient temperature surrounding the battery. The method for thermally managing the battery comprises the steps of providing an equipment cabinet having an equipment chamber, providing the cabinet with a battery compartment exposed to ambient temperature changes, providing the battery, placing the battery in the battery compartment, providing a cold plate having a surface substantially coextensive with the surface of the battery, placing the surface of the cold plate in direct contact with the surface of the battery, providing a heating pad, placing the heating pad in direct contact with the cold plate, providing an insulation pad, and placing the insulation pad between the heating pad and a mounting for the cabinet.

Abstract: The present invention provides a connected chilling-hating system capable of saving delivering power during reduced load periods.

Abstract: The invention concerns a device comprising in a housing (13) a first conduit (20) for transmitting a cool air flow (F1) and a second conduit (22), wherein is installed a heat exchanger (24) for transmitting a warm air flow (F2). The conduits (20, 22) are interposed between an air intake (14) and a mixing zone (31) delivering mixed air. A system splitting (40) the air flows (F1, F2), delivered by the conduits (20, 22) is provided at the junction of the two conduits and in the second conduit (22) downstream of the heat exchanger (24). Said splitting system (40) comprises transversely alternating a plurality of cool air passages (46) and a plurality of warm air passages (49). The passages emerge into two separate mixing zones (31, 25).

Abstract: A liquid-vapor separation system for use in a zero gravity environment for transferring and storing fluids, and particularly fluids that are primarily liquid, such as propellants, reactants and coolants, among others, has a low supply tank pressure and low pressurant gas requirement, which results in maximized capacity, reduced system weight and reduced cost. The temperature of a container provided as part of the present invention is decreased below the freezing point of residual liquid within the container. Non-compressible gas is thereafter vented and the liquid raised to liquid temperature. Gaseous contaminants are thereby vented and subsequent filling of the container is thereby maximized.

Abstract: An air-to-air heat recovery system for use with a building ventilation system includes first and second heat exchange banks and at least one damper module. Each damper module includes a damper disposed within a substantially rectangular housing having first, second, third, and fourth ports. The first port is connected to the ventilation system exhaust line, the second port is connected to the ventilation system supply line, the third and fourth ports are connected to the first ends of the first and second heat exchange banks, respectively. The damper is periodically reciprocated between first and second positions, directing air flow between the first port and the third port and between the second port and the fourth port in the first position, and directing air flow between the first port and the fourth port and between the second port and the third port in the second position.

Abstract: An integrated compression based heating/cooling, humidification and mid or high efficiency heat recovery ventilation system is provided. The integrated system is a centralized apparatus that offers a very efficient method for heating/cooling with more winter and summer humidity control plus offering heat recovery ventilation in a structure having a regulated indoor temperature and specific ventilation/energy recovery rate. The heating and cooling section of the apparatus would most commonly be configured as a forced air geothermal or air-to-air heat pump. The heat recovery ventilation section of the apparatus will incorporate a heat recovery chamber complete with a primary passive cross flow heat recovery core. Plus, a secondary refrigeration based high efficiency reversible energy recovery evaporator/condenser coil. The integrated system will also incorporate a humidification system designed to operate during the winter heating season.

Abstract: Air conditioner for individual cooling/heating including a front compartment and a rear compartment separated by a partition plate of an insulating material for forced inlet and outlet of external air therethrough respectively, at least two heat exchanger parts each in upper parts of the front and rear compartments and lower parts of front and rear compartments for making heat exchange with external air passing through the front compartment and the rear compartment respectively, first drawing means and second drawing means mounted in an upper portion or a lower portion of the front compartment or the rear compartment respectively for forced circulation of the external air through respective compartments, and driving means for driving the first and second drawing means, each of the heat exchanger parts includes thermoelectric modules each connected to a power source for absorbing a heat at a heat absorptive part and discharging the heat from a heat dissipative part provided opposite to the heat absorptive part

Abstract: An air condition includes a suction grill for sucking the air in a room, a front panel including an inlet port for sucking the air from the suction grill inside and a blowout port for blowing the air out into the room, a heat exchanger for heat exchange of the air, and a blower for circulating the air, wherein a concave air passage for room temperature detection is formed on the front face of the front panel, and an air suction port for sucking air for room temperature detection is formed in suction grill at an opposite part to air passage.

Abstract: An apparatus for enhanced heat and moisture exchange between make-up and exhaust air streams includes a housing having an exterior wall defining an interior channel through which air streams may pass and a water vapor permeable barrier disposed within the interior channel so as to partition the interior channel into a plurality of subchannels. At least a portion of exterior wall of the housing comprises a light-transmitting material. The exchange apparatus may be implemented as a modular panel which can be integrated into the exterior walls or facade of a structure. Also disclosed is a preheating apparatus in fluid communication with one of the subchannels of the exchanger apparatus. The preheating apparatus also includes an exterior wall defining an interior channel and having at least a portion of the wall formed of a light transmitting material. One or more energy absorbing heating elements are disposed within the interior channel of the preheating apparatus.

Abstract: A control system for controlling an air handling unit. The control system links the position of an exhaust air damper and a recirculation air damper so as the exhaust air damper is opened, the recirculation air damper is closed the same amount, and vice versa. An outside air damper remains completely open at all times. The relative positions of the exhaust air damper and the recirculation air damper control the amount of outside air that is emitted into the air handling unit through the outside air damper. For each of the control states of heating with minimum outside air, cooling with outside air, mechanical cooling with maximum outside air, and mechanical cooling with minimum outside air, the outside air damper remains completely open, and the position of the exhaust air damper and the recirculation air damper are controlled based on a particular state. Sequencing strategies are employed for transitions between the control states that utilize these positions of the dampers.

Abstract: Air-conditioning installation for room spaces (1), comprising a heat transfer device (4) for preheating supply air (A) by transferring heat from exhaust air (B) into the supply air; heating means including a heating source (11) for further heating the supply air; cooling means including a cooling source (14) for cooling the supply air; and adjusting means (16, 17, 18, 21, 32, 33, 34) for sensing the temperature of the supply air and for controlling the heat transfer device and the heating and cooling means on the basis of the sensed temperature. To simplify the structure of the installation, the heating and cooling sources (11, 14) are connected to the heat transfer device (4) so that the preheating, further heating and cooling of the supply air take place through the common heat transfer device.

Abstract: A heating, ventilation, and air conditioning (HVAC) system is disclosed which is capable of receiving interchangeable ventilation modules having varying degrees of air mixing abilities. A ventilation module fits inside the HVAC system and connects to a return air opening, an exhaust duct, an inlet air opening, and a supply air duct for proper routing of air to be conditioned. As ventilation needs change, a different module with appropriate ventilation characteristics can replace the existing module while keeping intact all other components of the HVAC system such as blowers, compressors, heaters, condensing coils and the like.