Abstract: A ventilation device includes an outside air heat exchanger disposed between a total heat exchanger and an outside air port, a return air heat exchanger disposed between the total heat exchanger and a return air port, and a supply air heat exchanger disposed between the total heat exchanger and a supply air port. A compressor, a flow switching device, the outside air heat exchanger, an outside air expansion device, and the return air heat exchanger are sequentially connected by pipes, the supply air heat exchanger and a supply air expansion device which are connected in series by pipes are connected in parallel to the outside air heat exchanger and the outside air expansion device by pipes, thereby forming a refrigerant circuit in which refrigerant is circulated.

Abstract: Provided are an air conditioner capable of indoor heating and humidity control with a simple structure and a method of controlling the same. The air conditioner comprises: a first air flow channel; a second air flow channel; a dehumidification rotor which comprises a first region provided on the first air flow channel, a second region provided on the second air flow channel, and an adsorbent which alternately passes through the first region and the second region and adsorbs moisture in the first region or the second region; and a control unit configured to control air flowing in the first air flow path so that the air is heated by a heater and discharged to an indoor area and control moisture of air flowing through the second region so that the moisture is evaporated in the first region to humidify the indoor.

Abstract: A liquid desiccant air conditioning system includes one or more liquid desiccant tanks.

Abstract: Provided are an air conditioner capable of indoor ventilation and humidity control with a simple structure and a method of controlling the same. The air conditioner comprises: a first air flow channel; a second air flow channel; a dehumidification rotor which comprises a first region provided on the first air flow channel, a second region provided on the second air flow channel, and an adsorbent which alternately passes through the first region and the second region and adsorbs moisture in the first region or the second region; and a control unit which controls so that, when in a ventilation mode, indoor air introduced through the first air flow channel is discharged to the outdoors through the second air flow channel and the second region, and air introduced from the outdoors is introduced to the indoors through the first air flow channel and the first region.

Abstract: An air delivery system may include a housing, a first liquid-to-air membrane energy exchanger (LAMEE), and a desiccant storage tank. The housing includes a supply air channel and an exhaust air channel. The first LAMEE may be an exhaust LAMEE disposed within an exhaust air channel of the housing. The exhaust LAMEE is configured to receive the outside air during a desiccant regeneration mode in order to regenerate desiccant within the exhaust LAMEE. The desiccant storage tank is in communication with the exhaust LAMEE. The exhaust LAMEE is configured to store regenerated desiccant within the desiccant storage tank. The regenerated desiccant within the desiccant storage tank is configured to be tapped during a normal operation mode.

Abstract: A system includes an external temperature sensor, an internal temperature sensor and an internal moisture sensor, along with an HVAC for blowing air into the vehicle. The system also includes an electronic control unit (ECU) coupled to the sensors and the HVAC. The ECU determines a difference between the inside air temperature and the ambient air temperature and sets a condensation indicator when the ambient air temperature is less than a first temperature threshold, the difference between the inside air temperature and the ambient air temperature is greater than a second temperature threshold, and the inside moisture level is greater than a moisture threshold. The ECU determines a condensation temperature at which additional condensation will accumulate on the window, determines the desired temperature for the air blown by the HVAC and controls the HVAC to blow air at the desired temperature when the condensation indicator is set.

Abstract: Air conditioner units are provided. A unit includes an outdoor heat exchanger, an indoor heat exchanger, and a compressor. The unit further includes a bulkhead disposed between the outdoor heat exchanger and the indoor heat exchanger. The unit further includes a vent aperture defined in the bulkhead. The unit further includes a dehumidification system disposed at least partially within the outdoor portion, the dehumidification system including an evaporator configured for removing heat from outdoor air flowing therethrough, a condenser configured for adding heat to outdoor air flowing therethrough, and an auxiliary compressor in fluid communication with the evaporator and the condenser.

Abstract: A security device and method receives gas pressure signals from a pair of gas pressure sensors, one set at the inside and the other at the outside of a door or a window. Gas pressure values for the signals (of the indoor and outdoor environments) are obtained and a camera, working in the same location as the pair of sensors, is controlled to capture photos or videos when it is determined that the gas pressure values of both sensors have changed and magnitude of the changes are both within a preset gas pressure range. Photos and videos are captured by the camera and transmitted to at least one validated contact according to preset contact information.

Abstract: According to one embodiment, a power control apparatus includes a receiving unit, an environment-data acquiring unit, and a calculation unit. The receiving unit receives, from a power supplying side, a power-consumption reduction request for reducing power consumption at a power demanding side. The environmental data acquiring unit acquires, from the power demanding side, environmental data representing environmental state of the power demanding side. The calculating unit calculates a power-reduction value based on the environmental data, in response to the power-consumption reduction request.

Abstract: In accordance with embodiments, a server room managing air conditioning system includes: a first coil; a second coil; and an air supply fan. The first coil adjusts returned air of a server room to a predetermined temperature value lower than a supplied air temperature target value and dehumidifies the returned air. The second coil adjusts the returned air of the server room to a predetermined temperature value higher than the supplied air temperature target value so that the supplied air temperature target value and a supplied air humidity target value can be achieved when the returned air is mixed with air adjusted by the first coil. The air supply fan mixes the returned air and supplies the mixed returned air as the supplied air to the server room.

Abstract: A system for a server room management includes an air-conditioning control device including: an acquisition unit; a setting unit that sets content for generating supply air at temperature, absolute humidity, and relative humidity within target range, based on outside air temperature and humidity as well as return air temperature; and a controller controlling amount of outside air, amount of return air, control amount of humidifier, control amount of cooler, and amount of air blown by blower, based on the content. If the outside air is within range greater than absolute humidity upper limit, or within range greater than enthalpy upper limit and greater than the temperature upper limit, the setting unit compares outside air and return air, and then determines, in accordance with the comparison, whether to set the content so that the cooler performs cooling by minimizing or maximizing the amount of the outside air.

Abstract: Methods and systems for humidity monitoring and adjustment are described herein. Data from at least one external sensor system is received by a computing device. The external sensor system determines at least one of outdoor air temperature and outdoor air humidity. Data from at least one internal sensor system is received by the computing device. The internal sensor system determines at least one of indoor air temperature and indoor air humidity. A dew point for an indoor environment is calculated based upon the data from the external sensor system and data from the internal sensor system. A graphical indication of an indoor environment climate may be displayed based upon the calculated dew point. Access openings, such as windows, may be opened or closed to change the humidity of the indoor environment.

Abstract: A server cooling device is described that includes an enclosure defining an interior space and at least one server rack port configured to engage a rack such that one or more rack mounted units installed in the rack interface with the interior space. The server cooling device also includes a mixing chamber including one or more cooling coils that is connected to the interior space defined by the enclosure.

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 system and method for detecting low levels of humidity (i.e. less than 10%) inside an automotive vehicle is provided whereby the total absolute humidity inside the vehicle is determined by multiplying the number of occupants in the vehicle by an absolute humidity factor to obtain a total absolute humidity expelled by the vehicle occupants. The absolute humidity outside the vehicle is added to the total absolute humidity expelled by the vehicle occupants to arrive at a total vehicle cabin absolute humidity.

Abstract: In an energy efficient building, a thermostatic controller receives temperature and humidity input signals indicative of an inside, outside and air mass buffer. According to one or more algorithms, the thermostatic controller controls the operations of various actuators, such as blower speed, a fresh air intake vent damper, an exhaust vent and a heat pump, so as to adjust the internal climate of the energy-efficient building towards a control point (e.g., an inside temperature and humidity comfort level).

Abstract: A detection and monitoring method and system which makes it possible to detect the presence of moisture problems when they manifest as abnormal humidity in one or more discrete ventilation zones within a building envelope. The abnormal humidity can then be investigated and resolved or mitigated to minimize the potential for building damage or adverse occupant health effects occur. The present invention provides an early warning system that will alert personnel of the occurrence of a moisture problem.

Abstract: A vehicle air-conditioning apparatus includes a dehumidification means, which has a compressor and dehumidifies inside of the vehicle, a humidity calculation means, which calculates humidity in the vicinity of an inside surface of the windshield, and a determination means, which determines whether the windshield is fogged on the basis of comparison between the humidity and a predetermined value. A defogging operation for heightening dehumidifying performance of the dehumidification means is performed, when the determination means determines that the windshield is fogged in a state where the compressor is turned on. The dehumidifying performance of the dehumidification means is lowered or condition in which the defogging operation is started is made to be difficult in the next defogging operation, when the windshield is determined to be fogged and the defogging operation is not manually performed in a state where the compressor is turned off.

Abstract: An apparatus for maintaining an enclosed space proximate a selected comfort level, and for conserving utilities, the apparatus comprising a housing in communicating relation with the enclosed space and the external environment and having an evaporative cooler for cooling the enclosed space and having a predetermined operating efficiency, and a spaced apart air conditioner for either selectively cooling or heating the enclosed space, having a baffle that restricts airflow to the air conditioner and an operating efficiency different from the evaporative cooler, and a control mechanism for automatically and selectively switching back and forth from operation of the evaporative cooler to the air conditioner in response to ambient conditions of the external environment and the operating efficiencies of the evaporative cooler and the air conditioner.

Abstract: There is disclosed a module control system and wet (i.e., flooded) building drying process that controls drying air circulation between inside and outside the building based upon absolute humidity and temperature sensor measurements.

Abstract: An air dehumidifying and conditioning system (20) draws incoming air (32) through a fan (40) and uses heat from the fan (40) and fan motor (48) to heat air discharged from the fan. The system then divides air discharged from the fan into a supply stream (50) and a scavenge stream (52). The supply stream is passed through a pre-cooler (60A) and an air cooler (60) for cooling and dehumidification. If necessary, the scavenge stream is heated with a pre-heater (62A) and a supplemental heater (62). The dehumidified air of the supply stream (50) is then heated by passing through a heat exchanger (80), with the heating by the heat exchanger being accomplished using the scavenge stream (52). Should no heating, cooling, or dehumidifying be required, a bypass stream (54) formed from the scavenge stream (52) is transmitted to the conditioned space.

Abstract: In a main controller for use in an air conditioner for controlling temperature/humidity of an intaken outside air, a controlling line setter (18) sets each of control lines (J.sub.1 -J.sub.5) on a psychrometric chart table (13), in which an aimed temperature/humidity line (Lo) is formed by connecting an upper limit state point (Ps) and a lower limit state point (Pw) of condition air from each of the outside air state points (G.sub.1 -G.sub.5) to the aimed temperature/humidity line (Lo). The controlling line (J.sub.1 -J.sub.5) is formed by connecting necessary lines selected from a main heating line (H.sub.L) showing the heating operation of a main heater (H), an adiabatic humidifying line (W.sub.L) showing the humidifying operation of an adiabatic humidifying device (W), a cooling line (C.sub.L) showing the cooling operation of a cooler (C) and an auxiliary heating line (RH.sub.

Abstract: A temperature and humidity control apparatus includes a humidity control section for controlling humidity when a flow rate of a low temperature fluid in a cooling dehumidifier composed of a heat exchanger is determined; a heater control section for controlling temperature when a flow rate of a high temperature fluid in a heater; and a predicting device for predicting an amount of temperature change caused by an operation of the cooling dehumidifier. The amount of predicted temperature change is canceled when the flow rate of the high temperature fluid in the heater is determined in the heater control section, and the flow rate of the high temperature fluid in the heater is determined so that the setting temperature can be realized.