Abstract: The present disclosure provides a refrigeration system comprising a receiver for use in applications where environmentally-friendly, typically flammable refrigerants are used. The receiver is sized so that it allows for the maximum amount of refrigerant to be used when regulatory concerns restrict the total amount. The present disclosure also provides a method for selecting the size of the receiver.

Abstract: An internal oil filter is installed at least partially inside a crankcase and/or an oil sump of a compressor. The internal oil filter can receive oil from an oil pressure regulator and filter the oil via filter media. The received oil radially penetrates through the filter media and flow directly into the oil sump from an outside surface of the filter media. This can eliminate the need of fluid lines connecting an outlet of an oil filter to the oil sump and any sealing mechanism therebetween.

Abstract: A refrigerator includes a cold air supply device received in an insulating partition that defines a storage compartment into upper and lower storage compartments. As cold air is supplied into the storage compartment below the insulating partition through the cold air supply device, the refrigerator has enhanced productivity and interior volume efficiency.

Abstract: A truck (10) is provided including an engine (12), a cabin, and a conditioned spaced (14) defined by a plurality of adjacent wall members including a front wall member (16). A transport refrigeration unit is configured to control a temperature within the conditioned space include an evaporator unit (20) and a condenser unit (22). The evaporator unit (20) is mounted within the conditioned space (14). The condenser unit (22) is operably coupled to the evaporator unit (20) and is mounted to an exterior surface (24) of the front wall member (16). The condenser unit (22) is configured to move slidably between an operating position and a clearance position.

Abstract: An accumulator having a case which forms a space in which liquid refrigerant and gaseous refrigerant are accommodated, a suction pipe connected to a first side of the case, a connection pipe that connects a second side of the case to a suction side of the compressor, and a gas-liquid separation pipe disposed inside the case to guide the gaseous refrigerant to the connection pipe, and in which the gas-liquid separation pipe is disposed inside the case and is separated from the connection pipe.

Abstract: A system and method for processing natural gas to produce liquefied natural gas is disclosed. The natural gas is cooled in one or more heat exchangers using a first refrigerant from a first refrigerant circuit in which the first refrigerant is compressed in a first compressor driven by a first gas turbine having a first inlet air stream. The natural gas is liquefied using a second refrigerant, the second refrigerant being compressed in a second compressor driven by a second gas turbine having a second inlet air stream. At least one of the inlet air streams is chilled from about the respective dry bulb temperature to a temperature below the respective wet bulb temperature. Water contained in at least one of the chilled first and second air streams is condensed and separated therefrom. At least a portion of the first refrigerant is condensed or sub-cooled using the separated water.

Abstract: A flood prevention system includes a first load, a second load, a third load, a fourth load, a first compressor, a first temperature sensor, a second temperature sensor, and a controller. The first, second, third, and fourth loads are configured to use a refrigerant to remove heat from a first, second, third, and fourth space, respectively, proximate to the first, second, third, and fourth load, respectively. The first compressor is configured to compress the refrigerant from the fourth load. The first temperature sensor is configured to detect a first temperature of the refrigerant from the first load, the second load, and the third load. The second temperature sensor is configured to detect a second temperature of the refrigerant from the first load, the second load, the third load, and the compressor. The controller is configured to trigger an alarm in response to certain conditions.

Abstract: A hybrid electric vehicle (HEV) and method of operation includes a thermal management system (TMS) that maintains optimal battery temperature operating ranges. The TMS includes a controller, heater, pump, and valves that control a flow rate of a convective fluid about the battery and other components. The TMS responds to battery temperature and differential signals, converting them into pump speed and heater signals utilizing a fuzzy logic multidimensional membership function (MF) that improves performance while reducing energy consumption by generating real-time, smoothed pulse width modulated (PWM) pump speed and heater signals. The MF capability requires less processing power than prior systems, which in turn enables improved response time to battery thermal and temperature rate changes during HEV operation.

Abstract: The present invention relates to a vehicle air-conditioning system and, more particularly, to a vehicle air-conditioning system in which an air-conditioning module consisting of an air-conditioning case and a blowing apparatus is disposed at a side of an engine room with respect to a dash panel, and a distribution duct for distributing cold and hot air discharged from the air-conditioning case into the inside of a vehicle is disposed on the indoor side of the vehicle with respect to the dash panel. The vehicle air-conditioning system may prevent a reverse flow of outdoor air into a cold air discharge port and a hot air discharge port due to the wind pressure when driving by forming a shielding means at the sides of the cold air discharge port and the hot air discharge port, which discharge the cold and hot air of the air-conditioning case to the outside, thereby improving the cooling and heating performance by smoothly discharging heat through the cold air discharge port and the hot air discharge port.

Abstract: A refrigeration system includes a compressor configured to compress a refrigerant, a condenser, and an evaporator. A heat exchanger is disposed downstream of the condenser and upstream of the evaporator, and disposed downstream of the evaporator and upstream of the compressor, the heat exchanger configured to facilitate heat exchange between the refrigerant supplied from the condenser and the refrigerant supplied from the evaporator. A first expansion device is disposed downstream of the heat exchanger and upstream of the evaporator, and a second expansion device is disposed downstream of the condenser and upstream of the heat exchanger. The second expansion device is configured to cool the refrigerant passing therethrough to cool the refrigerant in the heat exchanger supplied from the evaporator to the compressor.

Abstract: A cooling apparatus is provided in which items to be cooled may be vertically stacked on each other in a state in which the items to be cooled are laid out or laid on their sides. When the items to be cooled are vertically stacked in the cooling apparatus, a problem in that an upper space of the cooling apparatus is not utilized may be solved to efficiently utilize an inside of a refrigerator or a back surface of a door. Also, a problem in that capacity within the refrigerator is reduced when the items to be cooled are horizontally received may be solved.

Abstract: A coaxial ventilator exchanges atmosphere between parts of a building that are at differing heights. The coaxial ventilator includes an outer conduit that extends from an upper end thereof downward to a lower end thereof. The outer conduit surrounds an inner conduit that extends substantially the entire length of the outer conduit. Both the outer and inner conduits are open at their respective upper ends and lower ends. Temperatures of atmosphere both surrounding and within the outer conduit and the inner conduit induce an exchange of atmosphere between the coaxial ventilator and surrounding atmosphere.

Abstract: A thermal dissipation system for wearable electronic devices transfers heat away from a housing enclosing a heat source and dissipates the heat through a region of the support assembly that is noncontiguous with the housing. The support assembly may be coupled to the housing to enable the housing to be worn by a user. Various regions of the support assembly have different thermal resistances between a thermal conduit and an ambient environment. The thermal resistances may decrease as the thermal conduit becomes farther away from the heat source. The variations in thermal resistances enable modulation of relative heat flux between the various regions. For example, heat may be internally routed through the wearable electronic device to be dissipated through a surface that a user does not typically touch during operation.

Abstract: An air-conditioning apparatus includes a control unit performing liquid refrigerant equalization control for correcting an imbalance in liquid refrigerant amount between accumulators. The control unit includes a first liquid refrigerant equalization control unit controlling an output of a fan to perform the liquid refrigerant equalization control and a second liquid refrigerant equalization control unit controlling a frequency of a compressor to perform the liquid refrigerant equalization control. The second liquid refrigerant equalization control unit determines an increase or reduction in frequency of the compressor so that a total refrigerant circulation amount is not below a predetermined amount. When a value is within a predefined acceptable range, the control unit selects the first liquid refrigerant equalization control unit to perform the liquid refrigerant equalization control.

Abstract: A heat recovery system and methods of their use that include a liquid separator, which allows for relatively less refrigerant charge needed for operation of the heat recovery system, e.g. in a cooling and/or heat recovery mode. The liquid separator separates the liquid and vapor from fluid exiting the heat recovery exchanger, which can ensure that the inlet of the condenser coil is sourced with vapor and minimizes liquid entering the condenser coil. The liquid separator does not receive liquid refrigerant from the condenser coil, such as in a regular operating mode (e.g. cooling and/or heat recovery mode). Use of the liquid separator and its arrangement within the fluid circuit can thereby reduce the operating refrigerant charge needed for the system. A flow control device can control the heat recovery and/or cooling capacity of the heat recovery system.

Abstract: A heating, ventilation, and air conditioning (HVAC) system includes an enclosure and an evaporator coil disposed within the enclosure. The HVAC system also includes a pivot member coupled between an edge portion of the evaporator coil and the enclosure. The pivot member is configured to enable the evaporator coil to pivot relative to the enclosure to adjust an operating angle of the evaporator coil during operation of the HVAC system. Additionally, the HVAC system includes an actuator configured to enable pivoting of the evaporator coil to a target operating angle based on an operating parameter input.

Abstract: A variable refrigerant package air conditioner is shown that is easy to install in new construction with a unique base that causes collected mixture that overflows to drain outside the building. A control system is shown that has motors and compressor that are pulse width modulated so the air conditioner is infinitely variable while maintaining the highest possible power factor. Dehumidification of outside air occurs as it is mixed with inside air. By gradually approaching a temperature set point and even reheating after dehumidification, moisture is removed from the room.

Abstract: A refrigerator includes a cabinet including a refrigerating compartment and an evaporation chamber, a first door, a housing in the first door, an ice making room defining a cool air inflow hole and a cool air discharge hole, a chiller room defining a cool air discharge hole, a second door connected to the first door, a partition wall defining the ice making room, the chiller room, and a communication hole, a damper opening and closing the communication hole, a cool air supply duct connecting an outlet of the evaporation chamber and the cool air inflow hole to supply cool air of the evaporation chamber to the ice making room and a cool air return duct having a first inlet connected to the cool air discharge hole of the ice making chamber and a second inlet connected to the cool air discharge hole of the chiller room.

Abstract: A dehumidifier includes a desiccant, first and second fans, and a bracket. The first fan generates a process airflow through a first portion of the desiccant as it rotates in order to provide dehumidification. The second fan generates a reactivation airflow through a second portion of the desiccant as it rotates in order to dry the desiccant. The bracket is configured to mount the first fan within the dehumidifier. The bracket includes a first portion coupled to the first fan that supports weight of the first fan when the dehumidifier is in an upright position. The bracket also includes a support member coupled to the first portion and a side of the dehumidifier. The side member supports weight of the first fan when the dehumidifier is in a horizontal position.

Abstract: An ionic liquid desiccant system utilizes an ionic liquid desiccant to draw moisture from a working fluid, such as air that flow into an enclosure, such as a home. The desiccant may be mixed with the working fluid or a separator that allows moisture transport therethrough may be configured between the ionic liquid desiccant and the working fluid. The ionic liquid desiccant system may be part of an air conditioning system and may remove the moisture from air that is cooled by flowing over an evaporator or heat exchanger coupled with the evaporator. The ionic liquid desiccant may be pumped from a desiccant chamber to a regenerator chamber to remove absorbed moisture. A dual-purpose chamber may act as a desiccant chamber and as a regenerator chamber. A refrigeration system may have an electrochemical compressor and may utilize metal hydride heat exchangers.