Abstract: A dual venturi for a combustion device that can control the quantities of gas and air supplied to the burner of a water heater and in which a motor is combined with a damper so as to simultaneously open and close the inlets for secondary air and gas and efficiently control the quantity of heat, in order to increase the turn-down ratio. The dual venturi includes: a housing having a discharge part coupled to a turbo fan; an air supply unit divided into first and second air supply units; a gas supply unit divided into first and second gas supply units communicating with the first and second air supply units; and an opening and closing unit that blocks the flow of secondary air and secondary gas when needing a low quantity of heat, and opens both the second air supply unit and the second opening when needing a high quantity of heat.

Abstract: This gasification melting facility includes: a fluidized bed gasification furnace that generates pyrolysis gas by thermally decomposing waste and discharges incombustibles; a vertical cyclone melting furnace that includes a pyrolysis gas duct through which the pyrolysis gas is introduced; a pyrolysis gas passage that connects the fluidized bed gasification furnace with the pyrolysis gas duct of the vertical cyclone melting furnace; pulverizer that pulverize the incombustibles into pulverized incombustibles so that the particle size of the incombustibles becomes fine; and airflow transporter that puts the pulverized incombustibles in the pyrolysis gas passage, and separating metal contained in the pulverized incombustibles by a difference in specific gravity while conveying the pulverized incombustibles together with airflow. The pyrolysis gas and the pulverized incombustibles are melted in the vertical cyclone melting furnace.

Abstract: A waste gasification and melting furnace that promotes the drying and pyrolytic decomposition of waste in the shaft section, making it possible to limit the conveyance of moisture and volatile components to the bottom of the blast furnace and to reduce the consumption of extra coke. The waste gasification and melting furnace includes a shaft section; a melting furnace section; and a communicating section.

Abstract: A thermal post-combustion unit with a combustion chamber having a combustion space to which exhaust air can be supplied, having a burner for heating the combustion space, whereby clean air is produced, having an inlet for exhaust air and having an outlet for clean air. A flow path connects the inlet to the combustion space. Exhaust air can be heated by a heat-exchanger system. The flow path comprises a first, second and third flow section, wherein the first flow section is connected to the inlet and the exhaust air flows from the third flow section to the combustion space, wherein the flow sections connect to one another at diversion ends so that the exhaust air flows through two successive flow sections with different flow directions. Heat-exchanger pipes extend at least inside the first and the second flow section or at least the first and the second flow section extend inside heat-exchanger pipes.

Abstract: Methods, systems, and computer-readable media are described herein. One method embodiment includes determining an unscaled efficiency signal of combustion equipment using data measured from the combustion equipment, determining a theoretical efficiency signal of the combustion equipment using a theoretical efficiency surface of the combustion equipment and a subset of the measured data, and normalizing the unscaled efficiency signal using values from a correlated portion of the theoretical efficiency signal to monitor efficiency of the combustion equipment. Other embodiments can include providing a performance indicator of the combustion equipment in response to an operational mode change.

Abstract: The present disclosure describes an assembly configured to mitigate the harmful effects of smelt fouling, airflow interference, and operator exposure to hot air from the furnace and wind box through use of an extractable startup burner and an isolation chamber engaged to a windbox. The present disclosure also describes a method for safely extracting a startup burner from an active recovery boiler as has method for inserting an extractable startup burner into a recovery boiler during operation.

Abstract: A combustor wall is provided for a turbine engine and includes a combustor shell and a heat shield. The heat shield is attached to the shell with first and second cavities extending between the shell and the heat shield. The first cavity fluidly couples apertures defined in the shell with the second cavity. The second cavity fluidly couples the first cavity with apertures defined in the heat shield. The shell and the heat shield converge toward one another about the second cavity.

Abstract: A fuel injector for a fuel spray nozzle of a gas turbine engine combustor includes an angular lip axially projecting into an upstream section of an annular passage to guide a fuel layer vortex to flow along a radially outer passage wall of the annular passage and to guide an air layer vortex to fill into and pass through an annular space between the fuel layer vortex and a radially-inner passage wall of the annular passage. The air layer vortex is free of mixing with the fuel layer vortex before the fuel layer vortex is discharged from the annular passage for fuel atomization.

Abstract: A combination grill and fire pit heating device. The combination heating device having a grilling mode that is easily converted into a fire pit mode by adjustment of an orientation of the device.

Abstract: A steam generator is provided. The steam generator may include a steam chamber, a steam heater to supply heat into the steam chamber, a water supply, through which water to generate steam may be supplied into the steam chamber, one or more interference members disposed in the steam chamber to interfere with a flow of the water introduced through the water supply, and at least one discharge to discharge the steam generated in the steam chamber. The one or more interference members may be disposed under the at least one discharge and above the water supply.

Abstract: An indoor unit for an air-conditioning apparatus includes a main heat exchanger unit and a sub heat exchanger unit, the main heat exchanger unit includes a first main heat exchanger disposed at a front side of a case and a first heat-transfer pipe extending in a vertical direction, and a second main heat exchanger disposed at a back side of the case and a second heat-transfer pipe extending in the vertical direction. The sub heat exchanger unit includes a leeward-side first sub heat exchanger disposed at a leeward side of the first main heat exchanger and a heat-transfer pipe extending in a width direction, and a leeward-side second sub heat exchanger including a heat-transfer pipe extending in the width direction. The leeward-side second sub heat exchanger has a lower end surface located above an air passage wall and is disposed at a leeward side of the second main heat exchanger.

Abstract: An indoor unit for an air-conditioning apparatus includes a case, an air-sending fan, and a heat exchanger unit. The heat exchanger unit includes a plurality of heat-transfer pipes extending in a vertical direction and forming a plurality of refrigerant passages in a width direction of the case and an air flow direction, and a plurality of headers connected to both ends of the plurality of heat-transfer pipes to allow the refrigerant to flow between the plurality of heat-transfer pipes. The plurality of headers include a plurality of division headers dividing and connecting the plurality of heat-transfer pipes arranged in the air flow direction and connecting in parallel the plurality of heat-transfer pipes arranged in the width direction, and a return header connecting and turning back the plurality of divided refrigerant passages arranged in the air flow direction and connecting in parallel the plurality of heat-transfer pipes arranged in the width direction.

Abstract: The electrical connections of a chamber or enclosure for a water tub can be protected through the use of spill element sensors. The spill element sensors can help to disable the delivery of power to the heater of a water tub in the event that the electrical connections become wet.

Abstract: A heating, ventilation, and air-conditioning (HVAC) system comprises a plurality of sensors, a plurality of tandem compressor assemblies that each comprise a first compressor and a second compressor, and a controller communicatively coupled to the plurality of sensors and the plurality of tandem compressor assemblies. The controller determines an increase in a cooling demand of a structure associated with the HVAC system based on data received from at least one of the plurality of sensors. Also, the controller compares an ambient temperature outside of the structure to a first threshold. In response to determining that the ambient temperature is greater than the first threshold, the controller operates the HVAC system in a first mode and in response to determining that the ambient temperature is less than the first threshold, the controller operates the HVAC system in a second mode.

Abstract: The invention relates a method for air conditioning of an IT environment which comprises hardware IT devices, computers, memories, telecommunication devices and peripheral devices, wherein a refrigeration supply system of the IT environment has a free cooler, refrigerators and an air circulation system which is operated by means of fans and contains heat exchangers for drawing off the heat generated by the hardware, wherein the method includes the following steps: determining a basic desired value for the feed air temperature of the IT environment on the basis of the existing hardware-configuration, measuring at least one parameter of the hardware which represents a disturbance variable which has a direct or indirect effect on the feed air temperature, and storing the measured value of the parameter, ascertaining a desired value for the feed air temperature from the measured parameter value of the hardware, and raising the target value for the feed air temperature until a critical parameter value is measured,

Abstract: A thermostat includes a memory configured to store operating conditions for previously run conditioning events. The thermostat further includes a controller configured to receive first temperature data from a first temperature sensor indicative of a current indoor ambient temperature inside; receive second temperature data from a second temperature sensor indicative of a current outdoor ambient temperature outside; receive a temperature setpoint for a desired indoor ambient temperature of the building; determine a severity of a call for conditioning based on at least one of the current indoor ambient temperature, the current outdoor ambient temperature, and the temperature setpoint; and operate the multi-stage HVAC system in one of the plurality of stages for a current conditioning event based on the severity of the call for conditioning and the operating conditions for a similar previously run conditioning event to drive the current indoor ambient temperature towards the temperature setpoint.

Abstract: A system for controlling at least one heating, ventilation, and/or air conditioning unit to increase efficiency while maintaining comfort. The system comprises at least one computer. The at least one computer is configured to receive an indication of measured occupant load. The at least one computer is further configured to send a control signal to the at least one heating, ventilation, and/or air conditioning unit. The at least one computer may receive the indication of the measured occupant load by receiving from at least one sensor node at least a zone occupant quantity and a zone temperature. The at least one computer may send the control signal to the at least one heating, ventilation, and/or air conditioning unit by sending a signal that controls at least one variable air volume box to set a supply air flow rate and a supply air temperature based on the measured occupant load.

Abstract: A method for controlling an air handler including a fan and a heater or a compressor, the method including installing an energy saving controller (“ESC”) between a thermostat and the air handler, monitoring by the ESC of ON and OFF durations of the heater if the air handler is in a heating mode, or the compressor if the air handler is in cooling mode, in a first cycle and of ON duration of a second cycle, and determining the fan's first run time extension amount based on the ON and OFF durations of the first cycle and the ON duration of the second cycle.

Abstract: An HVAC controller may be controlled in response to a natural language audio message that is not recognizable by the HVAC controller as a command, where the natural language audio message is translated into a command recognizable by the HVAC controller. The HVAC controller may be a thermostat and may include a housing that at least partially houses a control module, a microphone, a speaker, a display, and a voice recognition module. The voice recognition module recognizes a predetermined audible trigger from a recorded voice message or streamed voice message, and in response, provide one or more audio clips via the speaker and/or video clips via the display to assist users in operating the thermostat. A user may communicate with the thermostat via the thermostat and/or a remote device.

Abstract: A comprehensive home automation system enables a real-time communication between the house and the owner. The system offers a set of monitoring, notifying and other automated functions around the house to homeowners. The home automation system includes a central control unit (CCU) and a plurality of end nodes that provide different measurements and control functions. A low-rate wireless personal area network is also provided for communications with the end nodes. The CCU enables the system to analyze and react to events in predetermined ways, and ultimately to self-learn the homeowner's daily routine and to act in an anticipatory fashion. The end nodes include multiple detectors, light switches, controllers for HVAC, wall outlets and extension cords, home entertainment systems, video surveillance devices, and the like. The end nodes also may be Zigbee enabled devices that include detectors for fire, intrusion, flood, total air quality, and the like.

Abstract: An indoor device for a cassette type air conditioner is provided. In the indoor device, a suction grill restricter to couple the suction grill to a panel to prevent outer edges of the suction grill from drooping may be provided to maintain a more stable coupling state, preventing dew condensation and noise from occurring.

Abstract: A heater includes an outer casing having an air inlet, an air outlet, and a receiving cavity defined between the air inlet and the air outlet, and an integrated air heating and blowing arrangement. The integrated air heating and blowing arrangement includes a fan assembly mounted in the receiving cavity for drawing air from ambient environment to pass through the air inlet and the air outlet, and a heating apparatus arranged to heat up the air drawn by the fan assembly. The heating apparatus is coupled with the fan assembly to form an integrated structure for being detachably mounted in the receiving cavity of the outer casing.

Abstract: An automatically flushing water heater maintenance system may be provided, the system including a water heater and a water heater controller. The water heater may include an inlet, an outlet, and a flush outlet having a first control valve in flow communication therewith. The first control valve may be configured to control a flow of water and sediment through the flush outlet out of the water heater. The water heater controller may be configured to communicate with the first control valve by transmitting a first control signal to the first control valve, the first control signal configured to cause the first control valve to open or close as part of an automatic flushing process. As a result of the flushing, the useful life of the water heater may be extended, and/or water heater leakage alleviated. Insurance discounts may be provided based upon using the automatic water heater flushing functionality.

Abstract: A system and method for performing at least one thermal response test for a medium. At least one request signal indicative of at least one request to perform the thermal response test is received. On the basis of the at least one request, at least one control signal is generated for causing at least one parameter of a fluid circulating through the medium to be acquired. The at least one measurement is indicative of a thermal property of the medium. The at least one control signal is then output to a hydraulic system.

Abstract: A centrifugal compressor for compressing a refrigerant vapor in a refrigeration cycle. The compressor comprises an impeller drive shaft supported by first and second radial bearings for rotation within the compressor housing and an impeller assembly including at least one centrifugal impeller wheel mounted on the impeller drive shaft to rotate with the impeller drive shaft. The first and second radial bearings are hydrodynamic fluid bearings in which the bearing fluid is the refrigerant vapor. The compressor further comprises a conduit for supplying a portion of the refrigerant vapor from the impeller assembly to the first and second fluid bearings.

Abstract: A cooling system is provided with a refrigerator using helium gas, a compressor that compresses the helium gas returned from the refrigerator and supplies the gas to the refrigerator, and a control unit. The control unit includes a measurement acquisition unit that acquires measurements of a plurality of different parameters representing a status of the refrigerator, or the compressor, or both, and an analysis unit that conducts multivariate analysis of the measurements acquired by the measurement acquisition unit.

Abstract: A device includes a plurality of evaporators coupled to a payload bay with a multiplicity of coolant tubes in each evaporator, wherein each tube enters and then exits the payload bay, further comprising one or more cryogenic valves coupled to the coolant tubes; a pump to force coolant flowing through the evaporators; and a thermal box immediately outside the evaporators and payload bay to thermally seal the payload bay from the outside environment and reduce heat gain, the thermal box including high strength open cell panels and a vacuum or Vacuum Insulated Panels (VIPs) with polyurethane foam to fill the voids.

Abstract: A heat pump includes a magnet assembly which creates a magnetic field, and a regenerator housing which includes a body defining a plurality of chambers, each of the plurality of chambers extending along a transverse direction orthogonal to the vertical direction. The heat pump further includes a plurality of stages, each of the plurality of stages including a magnetocaloric material disposed within one of the plurality of chambers and extending along the transverse direction between a first end and a second end.

Abstract: A heat pump includes a magnet assembly which creates a magnetic field, and a regenerator housing which includes a body defining a plurality of chambers, each of the plurality of chambers extending along a transverse direction orthogonal to the vertical direction. The heat pump further includes a plurality of stages, each of the plurality of stages including a magnetocaloric material disposed within one of the plurality of chambers and extending along the transverse direction between a first end and a second end.

Abstract: A system and method provides for controlling condensation generation in an air conditioning system for use in a bed (mattress). During active operation of the air conditioning system to generate conditioned air, the relative humidity of ambient air is measured and operation of one or more thermoelectric devices (TEDs) within the air conditioning system in response to the measured relative humidity is adjusted to control condensate buildup. During a subsequent drying operation, the relative humidity of the ambient air is measured and the drying operation is adjusted or otherwise controlled based on the measurement.

Abstract: Disclosed is an ice storage apparatus that may include an ice reservoir having ice stored therein, the ice being made in an ice making unit, and a noise reduction unit for reducing noise transmitted externally when the ice is moved from the ice making unit to the ice reservoir.

Abstract: Systems and methods are disclosed that may include providing an auxiliary power source in an HVAC system, establishing a stable, uninterrupted power source to at least one system controller, starting a first component of the HVAC system prior to starting a second component of the HVAC system. The total power requirement necessary to simultaneously start the first component and the second component may generally exceed the power output capacity of the auxiliary power source.

Abstract: A leeward tube row of an evaporator includes first to third tube groups, and a windward tube row thereof includes fourth and fifth tube groups. Within a third section of a leeward upper header portion with which heat exchange tubes of the third tube group communicate, a resistance member for flow division is provided so as to divide the interior of the third section into a first space which the heat exchange tubes face, and a second space which is separated from the first space and into which refrigerant flows. The resistance member for flow division has a plurality of refrigerant passage holes. The leeward upper header portion has a flow cutoff member for preventing flow of refrigerant into the first space of the third section. The third section of the leeward upper header portion communicates with the fourth section of the windward upper header portion via refrigerant communication passages.

Abstract: A refrigerant flow through a refrigerant circuit may be cooled with a cold cooling fluid flow from a thermal storage unit to generate a warm cooling fluid flow. The cold cooling fluid flow and the warm cooling fluid flow may be thermally isolated in the thermal storage unit, and a chiller system may cool the warm cooling fluid flow from the thermal storage unit to at least partially produce the cold cooling fluid flow.

Abstract: A body part of a decompression device is provided with a swirling space that allows a refrigerant from a refrigerant inlet to swirl, a throttle space that depressurizes the refrigerant that has flowed out of the swirling space, and a downstream-side space that is disposed on the downstream side of the throttle space in a refrigerant flow and is formed so that the pressure of a refrigerant present in the downstream-side space becomes uniform.

Abstract: A system may include a compressor, a heat exchanger, an expansion device, and first and second working fluid flow paths. The compressor may include a compression mechanism and a motor. The heat exchanger may receive compressed working fluid from the compressor. The expansion device may be disposed downstream of the heat exchanger. The first working fluid flow path may fluidly connect the heat exchanger and the expansion device. The second working fluid flow path may be disposed downstream of the heat exchanger and may fluidly connect the heat exchanger with the compressor. The second working fluid flow path may provide compressed working fluid to the compression mechanism and to the motor.

Abstract: There is disclosed a vehicle air conditioner in which in a dehumidifying and heating mode, a heating capability by a radiator can be acquired while avoiding frost formation to a heat absorber. A dehumidifying and heating mode is executed in which a refrigerant discharged from a compressor 2 radiates heat in a radiator 4, the refrigerant by which heat has been radiated is decompressed, and then heat is absorbed in a heat absorber 9 and an outdoor heat exchanger 7 or only in the heat absorber 9 to heating a vehicle interior while dehumidifying the vehicle interior. The vehicle air conditioner includes an injection circuit 40 which distributes a part of the refrigerant flowing out from the radiator 4 to return the part to the compressor 2.

Abstract: A transport refrigerant vapor compression system includes a controller for controlling operation of the transport refrigerant vapor compression system. The controller is configured to modulate a discharge pressure of the refrigerant compression device to control a cooling capacity of the transport refrigerant vapor compression system. The controller is configured to modulate the discharge pressure of a refrigerant compression device to control the cooling capacity of the transport refrigerant vapor compression system using both a refrigerant reservoir and an auxiliary expansion device without affecting superheat of the transport refrigerant vapor compression system.

Abstract: A control system for a refrigeration circuit having one or more working fluid refrigerant sensors capable of measuring the fluid energy value of the refrigerant along a low side of the refrigeration circuit and regulating the flow of refrigerant to the circuit low side through reference to expected refrigerant fluid energy values.

Abstract: A heat pump includes a first cycle device and a second cycle device. The first cycle device is connected such that, in a heating operation, a first refrigerant is circulated in an order of a first compressor, a 4-way valve, a first heat exchanger, a second heat exchanger, a first expansion mechanism, a third heat exchanger, the 4-way valve, and the first compressor, and such that, in a cooling operation, the first refrigerant is circulated in an order of the first compressor, the 4-way valve, the third heat exchanger, the first expansion mechanism, the second heat exchanger, the first heat exchanger, the 4-way valve, and the first compressor. The second cycle device is connected such that a second refrigerant is circulated in an order of a second compressor, a fourth heat exchanger, a second expansion mechanism, the second heat exchanger, and the second compressor.

Abstract: A low-cost and highly-efficient air-conditioning system including an AHU using refrigerant of a heat pump cycle as a heat source, and capable of reducing an on/off cycle operation of compressors at a time of a low load, the system including: a plurality of outdoor units; an air handling unit; a plurality of independent heat pump cycles formed by connecting the plurality of outdoor units and the air handling unit by refrigerant pipes, each of the plurality of independent heat pump cycles including a compressor, an indoor heat exchanger, an expansion valve, and an outdoor heat exchanger; and a number control unit controlling, to satisfy a capacity demand corresponding to an air-conditioning load, based on a particular frequency range associated with the compressor, in which a certain compressor efficiency or more is obtained, a number of the compressors in operation and operating frequencies of the respective compressors in operation.

Abstract: An engine driven heat pump includes an outdoor fan and an engine cooling water pump, each of which is driven by the generation power of a generator, and after a lapse of a first predetermined time from a predetermined actuation time of an engine, the output power from the generator is output-controlled, and the power output control is started so as to obtain the generation power, and when it is determined that the generation voltage after the start of the power output control is equal to or higher than a predetermined voltage, the engine cooling water pump is driven, and after a lapse of a second predetermined time from a predetermined drive time of the engine cooling water pump, the outdoor fan is driven, and after a lapse of a third predetermined time from a predetermined drive time of the outdoor fan, the output control of the inverter is started.

Abstract: A refrigerator includes a main body configured to have a storage space for storing food, a cooling part provided in the main body and comprising a compressor, a condenser, an expansion valve, and an evaporator which constitute a cooling/freezing cycle, a refrigerant pipe for circulating refrigerant based on the refrigerating cycle, and an ice machine in the storage space. The ice machine includes a case providing an ice-making space, an ice-making pipe extending from the refrigerant pipe to the case, a cooling plate on a surface of the case and configured to be in contact with the ice-making pipe, and an ice-making tray on the cooling plate so as to be cooled by the cooling plate, and configured to accommodate water for generating ice.

Abstract: A refrigerator having an ice making device, comprises: a case having an opening at one side thereof; a tray accommodation portion having opened upper and lower surfaces, and configured to be inserted into or withdrawn from the case through the opening; an ice tray accommodated in the tray accommodation portion, and containing water to be frozen to ice cubes; and an accommodation portion coupling unit for coupling the tray accommodation portion to the case. Water is poured onto the ice tray in a state that the ice tray has been accommodated in the tray accommodation portion, and then the ice tray is carried to be mounted to the case. This may solve the conventional problem that each ice tray has to be carried. Furthermore, since an external force such as hand trembling is transmitted to the ice tray via the tray accommodation portion, overflow of water is minimized.

Abstract: An ice maker is provided herein that includes an evaporator plate. A first side of the evaporator plate is adapted to form a first clear ice sheet and a second side of the evaporator plate is adapted to form a second clear ice sheet. A staging area is arranged downstream from the evaporator plate and adapted to receive the first and second clear ice sheets after formation. The first and second clear ice sheets are fused in the staging area to form a unitary ice sheet. A first mold assembly having a first mold form and a second mold assembly having a second mold form are positioned within the staging area on opposite sides of the unitary ice sheet when the unitary ice sheet is received in the staging area. A mold cavity is adapted to shape the unitary clear ice sheet to form one or more clear ice structures.

Abstract: An ice making system for a refrigerator, comprises: a base member; an icemaker mounted to a front surface of the base member for making ice pieces; a driving unit mounted to a rear surface of the base member such that a motor shaft thereof is in a horizontal state; an ice bank horizontally inserted into the base member in a detachable manner, for storing the ice pieces made by the icemaker; a detachable mounting unit for detachably mounting the ice bank to the base member; and an ice crusher assembly provided at the ice bank so as to be connected to or separated from the driving unit, for crushing the ice pieces. Since the ice bank has only to be horizontally pushed into the base member for coupling, or horizontally pulled out of the base member for separation, processes for coupling or separating the ice bank to/from the base member are facilitated. This prevents the ice pieces stored in the ice bank from being discharged out of the ice bank.

Abstract: The invention involves an insulation device comprising of a pad defined by a length and a width suitable for fitting snuggly within a cavity of a cooler. In exemplary embodiments, the pad comprises a closed-cell polyvinyl chloride nitrile butadiene rubber foam, also known as PVC/NBR, the pad defined by dimensions including a certain thickness such that the pad may be compressed against the interior walls of the cooler cavity without collapsing or folding over. The edges of the pad may be pressed against the interior walls of the cooler cavity to form a compression seal throughout the perimetrical edge of the pad against the interior walls of the cooler cavity; the compression-sealed edge prolongs a period during which low temperatures may be maintained. The pad is preferably water resistant, lightweight, washable, sufficiently flexible and can be easily trimmed or cut to a desired size.

Abstract: A refrigerator includes a cabinet defining a storage compartment, a door, a drawer, a roller at a side of the drawer, a support rail at a side of the storage compartment for guiding movement of the roller in a forward-rearward direction, and a support surface in the support rail for supporting the roller, the support surface including a downhill guide section that slopes downward from a rear of the refrigerator to a front of the refrigerator and a slide guide section that extends from the downhill guide section.

Abstract: A system and a method for liquefaction of gases which are utilized in their liquid state as refrigerants in applications that require low temperatures, throughout various pressure ranges, from slightly above atmospheric pressures to pressures near the critical point. The system and method are based on closed-cycle cryocoolers and utilize the thermodynamic properties of the gas to achieve optimal liquefaction rates.

Abstract: A system and method for removing nitrogen from an intermediate stream in a gas subcooled process operation that processes natural gas into a sales gas stream and a natural gas liquids stream. The system and method of the invention are particularly suitable for use with gas subcooled process operations where the sales gas stream exceeds pipeline nitrogen specifications by up to about 3%, such as for reducing the nitrogen content of sales gas streams to levels permissible for pipeline transport.