Abstract: A duct burner includes a perforated flame holder and a fuel header that is spaced away from the perforated flame holder and has a plurality of fuel nozzles. Each of the fuel nozzles is arranged to emit a fuel stream toward a respective portion of the perforated flame holder. A combustion reaction supported by the fuel streams is held within a plurality of apertures extending through the perforated flame holder.

Abstract: A gas burner for burning a gas with a low calorific value. The gas burner may be for burning a synthesis gas issuing from the gasification of biomass.

Abstract: A combustion system includes a fuel and oxidant source, a perforated flame holder, and a support structure that supports the perforated flame holder at a selected distance from the fuel and oxidant source. The fuel and oxidant source outputs fuel and oxidant onto the perforated flame holder. The perforated flame holder receives the fuel and oxidant and sustains a combustion reaction of the fuel and oxidant within the perforated flame holder.

Abstract: A gas burner for a heater comprises a planar metal frame portion with an elongated opening defined by two longitudinal edges and by two transversal end edges, as well as a combustion membrane in the form of a tridimensional shell, connected to the frame portion along the longitudinal and transversal edges, wherein the combustion membrane has a diffuser layer, which forms an outer combustion surface made of a perforated metal sheet, and which extends between the two longitudinal edges with a single curvature out of the plane of the frame portion, and two closure portions made of metal sheet extending from the transversal edges out of the plane of the frame portion and which close end areas between the diffuser layer and the transversal edges of the frame portion.

Abstract: Methods and apparatus to improve industrial combustion efficiency are disclosed. One disclosed example method includes providing sorbent to one or more of a combustion chamber or to flue gas exiting the combustion chamber after a combustion process. The disclosed example method also includes providing the flue gas to a hot gas filter after the flue gas exits the combustion chamber.

Abstract: A flue gas heat recovery system includes a furnace, a combustion device, a flue gas duct, and a heat exchanging unit, and further includes a heat recovering unit disposed in the flue gas duct on the downstream side of the heat exchanging unit to recover heat from flue gas, and configured such that a path cross-sectional area of an outlet of the heat recovering unit is made smaller than a path cross-sectional area of an inlet of the heat recovering unit, and a first heat exchanger that heats combustion air by using heat recovered by the heat recovering unit.

Abstract: An oxy-fuel burner (10) with monitoring including a fuel passage (320) terminating in a fuel nozzle (322), a primary oxidant passage (330) terminating in an oxidant nozzle (333), one or more sensors including a nozzle temperature sensor (372) for sensing at least one of an oxidant nozzle temperature and a fuel nozzle temperature, and a data processor (66, 166,266) programmed to receive data from the sensors and to determine based on at least a portion of the received data the presence or absence of an abnormal burner condition including a potential partial obstruction of at least one of the primary oxidant passage (330) and the fuel passage (320) based on an increase or decrease in at least one of the oxidant nozzle temperature and the fuel nozzle temperature.

Abstract: A combustion chamber of a gas turbine with a combustion chamber wall to which effusion tiles are fastened which adjoin one another while forming a rim gap, with a seal being arranged in the area of said rim gap, characterized in that the effusion tiles at their rim facing the combustion chamber wall are provided with a bevel -in order to form a sealing space, that a seal having a V-shaped cross-section is placed inside the sealing space and that the combustion chamber wall is provided with at least one recess to supply cooling air through the combustion chamber wall to that side of the seal facing the combustion chamber wall.

Abstract: A combustor wall is provided for a turbine engine. The combustor wall includes a shell, a heat shield and a combustion chamber. The heat shield is connected to the shell by a bonded connection, and defines a portion of the combustion chamber. A cooling cavity is defined between the shell and the heat shield.

Abstract: A combustor wall is provided for a turbine engine. The combustor wall includes a shell, a heat shield and a cooling element. The shell defined a first set of apertures. The heat shield defines a second set of apertures. The cooling element extends between the shell and the heat shield within a tapered cooling cavity defined between the shell and the heat shield. The tapered cavity is fluidly coupled with the first and the second sets of apertures. The cooling element is thermally coupled to one of the shell and the heat shield.

Abstract: An assembly for a turbine engine includes a combustor wall. The combustor wall includes a shell, a heat shield and an annular land. The heat shield is attached to the shell. The land extends vertically between the shell and the heat shield. The land extends laterally between a land outer surface and an inner surface, which at least partially defines a quench aperture in the combustor wall. A lateral distance between the land outer surface and the inner surface varies around the quench aperture.

Abstract: A combustor thermal shield is provided. The combustor thermal shield may have a combustor panel that may protect a surface of a combustor from heat and/or flame. The combustor thermal shield may be mounted to the combustor by an attachment stud formed as a unitary body with the combustor panel. The combustor panel and the attachment stud may be made of different materials. A transition region may be disposed between the attachment stud and the combustor thermal shield and formed as a unitary body with the combustor panel and the attachment stud. The transition region may be made of a mixture of the different materials. The mixture may vary according to a gradient as a function of proximity to the combustor panel and the attachment stud.

Abstract: A gas turbine engine (GTE) including a thermally expandable transition piece is disclosed. The GTE includes at least a combustor section having a combustor sleeve, also known as top hat, and a transition piece. The transition piece includes a transition duct having an upstream end, a downstream end, a outer surface and a forward end face. The transition piece also includes one or more struts selectively attached to the transition duct proximate to the upstream end. The strut extends radially upward from the outer surface, and axially outward beyond the forward end face for interfacing the strut with at least a portion of the combustor sleeve.

Abstract: An annular grommet is provided for a wall assembly of a combustor section of a gas turbine engine. The annular grommet includes a wall that at least partially defines a chamber. A wall assembly within a gas turbine engine includes a liner panel with a hot side and a cold side. The wall assembly also includes an annular grommet with a passage wall and a flange wall transverse to the passage wall. The annular grommet includes a chamber therein. A method of cooling a wall assembly within a gas turbine engine includes injecting air through a chamber in an annular grommet.

Abstract: A flow conditioning device for a can annular gas turbine engine, including a plurality of flow elements disposed in a compressed air flow path leading to a combustor, configured such that relative adjustment of at least one flow directing element with respect to an adjacent flow directing element during operation of the gas turbine engine is effective to adjust a level of choking of the compressed air flow path.

Abstract: A flow directing apparatus for directing fluid flowing therethrough includes a flow body defining an upstream facing inlet surface and an opposed downstream facing outlet surface with a bore defined through the flow body. The bore includes an inlet portion of the bore extending in a downstream direction from an inlet where the bore meets the inlet surface. An intermediate portion of the bore extends in a downstream direction from the inlet portion of the bore. A backstep portion of the bore extends downstream from the intermediate portion of the bore to an outlet where the bore meets the outlet surface. The intermediate portion of the bore has a cross-sectional flow area that is smaller than that of the inlet portion and smaller than that of the backstep portion to provide a backward facing step in flow area for flow through the bore.

Abstract: A gas burner for a gas hob of a gas cooking appliance. The gas burner comprises a gas crown (1) and a cap (14) configured for covering the gas crown (1), wherein the gas crown (1) comprises a central gas distribution chamber (5) confined by a circumferential wall (4) which comprises a peripheral outer surface inclined downwards to the outside, and a plurality of gas outlet ports (6) implemented in the circumferential wall (4) as upwardly opened grooves passing through the circumferential wall (4) and opening into the slanted outer surface, wherein lower outer edges of the grooves (6) are sloped towards the gas distribution chamber (5) and define a groove perimeter (12) corresponding to or larger than the outer cap perimeter (13).

Abstract: The design and assembly of a smart device constituent of a micro-machined (a.k.a. MEMS, Micro Electro Mechanical Systems) mass flow sensor and an electrically controllable valve for applications in safety enhancement and intermit connectivity for residential or commercial gas range is disclosed in the present invention. The said smart device detects the gas flow at the unattended situations and sends information to the destined mobile devices of the use via the network such that it enables the users to remotely execute actions of either shutting off the gas supply or call for relevant party's immediate attention. The said smart device shall also automatically shut off the gas supply should the transmitted signal to users failed to send feedback signal such that it can prevent the safety incidents due to leakage or overheating or even fires.

Abstract: A combustion apparatus according to one aspect of the present invention comprises a fuel storage container for storing fuel, a combustor having a certain length and connected to the fuel storage container and a pipe so as to be supplied with fuel and combust fuel, an air blower disposed at one end of the combustor and supplying air into the combustor, and a flame plate disposed over the combustor in a longitudinal direction and perfectly combusting air that is imperfectly combusted in the combustor. The combustor has a groove formed in a longitudinal direction of the combustor, an ignition heater disposed in the longitudinal direction of the groove and generating heat, an ignition wick disposed over the ignition heater, absorbing fuel, and igniting by heat, and a pair of combustion wicks disposed in the longitudinal direction of the combustor so as to be spaced away from the ignition wick by a certain distance and combusting fuel.

Abstract: A cooking apparatus includes a frame configured to form a cooking chamber; a burner cover provided inside the frame and configured to form a combustion chamber; a burner accommodated in the combustion chamber; a fan provided at an outside of the burner cover in the frame; and a fan cover configured to cover the fan and the burner cover.

Abstract: The present invention relates to a method of controlling a cooking oven (1) which comprises a cooling fan (2) for thawing steam from a cooking chamber (3) into a chimney and discharging it to an outside, a motor (4) for driving the cooling fan (2) and a user interface for allowing a user to select a type of the food to be cooked and a target temperature to be set for the cooking process. The method of the present invention comprises a step of acquiring the user selection of the type of the food and the target temperature and a step of switching the motor (4) on/off based on the acquired user selection.

Abstract: The present invention relates to a method for controlling a pump for feeding fluid (F) into a heating system (1000). The heating system has a hot fluid tank (HFT) receiving fluid from an associated fluid reservoir line (5) with an incoming fluid mass flow rate (dmcw/dt). A pump (P) receives fluid from the line, and pumps the received fluid with amass flow rate (dmc/dt). A heat exchanging unit (HX) transfers heat (Q) to the fluid (F) from a medium (R). The transferred heat (Q) is maximized by controlling the pump (P1) in response to this information indicative of the transferred heat (Q), the fluid mass flow rate delivered by the pump thereby having a minimum as a function of the incoming fluid mass flow rate (dmcw/dt) when maximizing the transferred heat. The invention provides significantly improved heat transfer to the fluid and power savings for the pump. The invention also relates to a heating system, e.g. a heat pump system.

Abstract: The present invention relates to a refrigeration appliance having a compressor for effecting the refrigeration cycle, a heat exchanger (1) for condensing the refrigerant fluid through refrigerant flow tubes (2) in serpentine form where the refrigerant flow is provided, said heat exchanger (1) being disposed against a fan (3) that is structurally integrally provided to effect forced heat convection for cooling said

Abstract: A low noise micro environmental workspace comfort unit for a workspace provides an air flow to a person working at the workspace. At least one ambient air fan is mounted to a wall of the comfort unit enclosure and electrically coupled to a fan speed control module, the fan speed control module operatively coupled to the controller. At least one heated air fan is mounted to the wall or another wall of the comfort unit enclosure at a different place than the at least one ambient air fan. A heat reflector reflects heat radiation away from a rear portion of the low noise micro environmental workspace comfort unit and directs an air flow from the at least one heated air fan to the at least one air outlet. A method for minimizing fan noise of a low noise micro environmental workspace comfort unit is also described.

Abstract: Disclosed is a dehumidifier, comprising a main body (300) and a front panel (200); a compressor is arranged in the main body (300), and is positioned at the bottom of the main body (300), the front panel (200) is arranged on the outside of the main body (300); the dehumidifier further comprises a lower seal panel (100) for shielding the compressor; the lower seal panel (100) is disposed on the main body (300) and positioned between the front panel (200) and the compressor.

Abstract: Systems and methods for thermal energy storage are disclosed. A thermal energy storage unit and an evaporator coil may form a thermosyphon. In an energy consumption mode, refrigerant may be directed from a compressor, through a condenser coil, to an evaporator coil via a first 3-way valve, and back to the compressor via a second 3-way valve. In an energy storage mode, refrigerant may be directed from the compressor, through the condenser coil, to a thermal energy storage unit via the first 3-way valve, and back to the compressor via the second 3-way valve. In an energy discharge mode, refrigerant may be directed from the thermal energy storage unit to the evaporator coil via the second 3-way valve, and back to the thermal energy storage unit via a vapor line.

Abstract: A system and method of optimizing water cooling system energy efficiency, including a monitoring device to receive heat data corresponding to heat energy of a unit of water associated with a recirculating water system, power data corresponding to power being applied to the system, and load data corresponding to a load associated with the system. The monitoring device determines a measured metric by calculating a measured rate of water traversing the recirculating water system based on the heat data and determining a ratio of the power data and the measured rate of water. The monitoring device determines an efficiency metric of the system by comparing the load data to a look-up table and, based thereon, calculates a key performance indicator of the recirculating water system as a ratio of the efficiency metric and the measured metric, which is output to a graphical user interface.

Abstract: In an embodiment, a method of testing a HVAC unit for a disconnected damper motor is provided. An outside air section of a damper assembly is closed and air is circulated through the unit. If a discharge air temperature is not substantially equal to a return air temperature, the damper motor is determined to be disconnected. Otherwise, an economizing function having a free cooling target temperature is started. An outside air temperature is compared to the free cooling target temperature. If the outside air temperature is less than the free cooling target temperature, the damper motor is determined to be disconnected if the damper motor has been commanded to fully open the outside air section. If the outside air temperature is not less than the free cooling target temperature, the damper motor is determined to be disconnected if a discharge air temperature is not substantially equal to an outside air temperature.

Abstract: An air conditioning system includes a plurality of indoor units installed in the same indoor space, an outdoor unit and a control device. The indoor units include respective usage-side heat exchangers capable of setting set temperatures individually. The outdoor unit includes a heat-source-side heat exchanger conducting heat exchange with refrigerant circulating through the usage-side heat exchangers. The control device calculates a representative temperature related value shared by the indoor units using the set temperatures of the indoor units, and switches the indoor units between thermo-ON and thermo-OFF based on the representative temperature related value. The control device calculates the representative temperature related value based on a plurality of temperature differences between the set temperatures and control temperatures in the indoor units.

Abstract: Disclosed herein is a dehumidifier having an outer case having a first inlet hole, a second inlet hole, a first outlet hole, and a second outlet hole, a first draft fan to move air from the first inlet hole to the first outlet hole, a second draft fan to move air from the second inlet hole to the second outlet hole, an evaporator to remove moisture included in the air inlet from the first inlet hole, a compressor to compress refrigerant evaporated at the evaporator, a first condenser disposed at a moving path of the air moved by use of the first draft fan, a second condenser disposed at a moving path of the air moved by use of the second draft fan, and an expansion apparatus to expand the refrigerant condensed at the first condenser or the second condenser.

Abstract: Systems and methods are disclosed for reducing the usage of a ventilation system. For example, one or more of the exemplary systems comprise a thermostatic controller that has at least two settings for the delay occurring between turning the ventilation system off and then turning the system back on. One setting being for a first interval and at least a second setting for a second interval that is longer than the first interval. A processor is in communication with the thermostatic controller and is configured to evaluate one or more parameters including at least the temperature outside the structure conditioned by the ventilation system. The processor is further configured to determine whether to adopt the first interval or the second interval based upon the values of the parameters.

Abstract: A CPU 210 receives suction pressure PL and a suction temperature Te, calculates a saturation temperature corresponding to the evaporation pressure Ts1 by using the suction pressure PL, and calculates a suction superheating degree SHs of a compressor 21 by using the suction temperature Te and the saturation temperature corresponding to the evaporation pressure Ts1. The CPU 210 reads a current opening degree De of an outdoor expansion valve 24. Next, the CPU 210 uses the received suction pressure PL and opening degree De of the outdoor expansion valve 24 and the calculated suction superheating degree SHs, refers to an outdoor fan control table 300, and determines a control aspect of an outdoor fan 27. The CPU 210 executes control of the outdoor fan 27 in accordance with the control aspect that is determined by referring to an outdoor fan control table 300.

Abstract: A wireless thermostat includes a display configured to present an operating condition of the wireless thermostat and an adjustment selector to allow for manual adjustment of the operating condition. The wireless thermostat includes a communication module configured to communicate with at least one mobile device and allow for remote adjustment of the operating condition. The wireless thermostat includes a sensor for detecting a presence in proximity to the thermostat of at least one user and generating a presence signal in response to the detected user presence. The wireless thermostat includes a processor configured to implement changes in the operating condition in response to the manual adjustment at the selector and the remote adjustment at the mobile device. The processor also communicates with the sensor to receive the presence signal and transition the display between an awake state and a sleep state in response to the presence signal.

Abstract: An air-conditioning apparatus has a controller that sets the target value of a difference between the temperatures of a secondary-side heat transfer medium at positions before and after a plurality of use side heat exchangers during a rated operation in a heating operation so as to have a larger magnitude than a target value of the difference between the temperatures of the secondary-side heat transfer medium at positions before and after the plurality of use side heat exchangers during a rated operation in the cooling operation.

Abstract: A ventilating baseboard grille for use after a flooding has a longitudinal grille and a front element sized to entirely cover the grille such that a backside of the front element comprises attachment means to attach the front element to the grille.

Abstract: A register cover that inhibits heated or cooled air from a forced-air HVAC system from exiting a register, regardless of the material used for the register, ductwork, or building construction. The register vent cover includes a body portion presenting a front surface and a rear surface, the rear surface having at least one securing structure arranged thereon. The body portion is sized and shaped so as to correspond with and cover an air flow opening of a register, such that when the rear surface of the body portion is abutted with the register with the body portion covering the air flow opening of the register, the securing structure affixes the register vent cover to the register, and the register vent cover inhibits air from flowing through the air flow opening.

Abstract: An air conditioner including a frame, a fan operable to generate an airflow that moves in an airflow direction, and a first heat exchanger including a first end adjacent the air inlet, a second end adjacent the air outlet, an air inlet face that extends between the first end and the second end, an air outlet face that extends between the first end and the second end and faces opposite the air inlet face, and a longitudinal axis that extends through the first end and the second end between the air inlet face and the air outlet face. The heat exchanger is configured to transfer heat between the airflow and a cooling medium. A first heat exchanger angle is defined between the longitudinal axis of the heat exchanger and the airflow direction, and the first heat exchanger angle can be between about 3 degrees and about 20 degrees.

Abstract: An enclosed heater includes a plurality of tubes (or a continuous serpentine tube) and a perforated flame holder within an interior volume. The plurality of tubes carries a working fluid. The perforated flame holder supports a combustion reaction of fuel and oxidant within the perforated flame holder and radiates heat to the tubes to heat the working fluid.

Abstract: An article is provided that can be used as a heating source for various applications. The article includes an environmentally friendly gaseous fuel mixture within a gas cylinder that is both non-corrosive and refillable. More specifically, the gaseous fuel mixture contains hydrogen and methane. Methods of using the article as a heating source are also provided.

Abstract: Methods of processing a furnace include the step (I) of supporting the furnace with a support member configured to span across and beyond a footprint of a mounting area. A support surface outside of the footprint is configured to support at least one pair of opposite end portions of the support member such that the furnace is suspended over the mounting area. The method may further include the step (II) of levitating the opposite end portions of the support member over the support surface on a cushion of fluid, and the step (III) of moving the furnace together with the support member relative to the support surface while the opposite end portions of the support member are levitated over the support surface with the cushion of fluid.

Abstract: A catalytic heating system for heating a beverage or food that comprises: a container for containing the beverage or food and a catalytic combustion assembly for heating the container, with the catalytic combustion assembly comprising a fuel supply assembly having a fuel canister for supplying a fuel gas having a stoichiometric ratio of about 15 to an air mixing injector for injecting the fuel gas into an elongate sidewall enclosure having curved shape and defining an enclosed catalytic combustion chamber where a catalytic combustion process is generated, causing the complete combustion of all of the fuel gas and heating the container containing the beverage or food.

Abstract: The invention relates to a device for stiffening and sealing a solar collector, providing protection against breakage and secure sealing of the connection area between an extruded flat plate solar absorber and fluid-inlet and -outlet collectors. The device comprises: a support profile for stiffening the extruded flat plate absorber and the fluid-inlet and -outlet collector, formed by open cylindrical modules together with two parallel plates; and a tray, made of plastic reinforced using fibreglass fabric, for sealing the connection between the extruded flat plate solar absorber and the fluid-inlet and -outlet collectors in such a way as to maintain said elements as a common or single-piece element.

Abstract: A network topology for powering and communicating with groups of heliostats in a concentrated solar power plant. Heliostats are arranged in rows and wired together with inter-drive cables that distribute power and data from a field electrical system and plant network. Data is transmitted to and from heliostat drive control boards via network switches connected to intelligent power distribution units. Power is transmitted from battery banks to said intelligent power distribution units. Communication interface modules supply a connection between intelligent power distribution units and the heliostat control boards of non-adjacent heliostat rows to create communication and data loops having improved redundancy and robustness in the event of single point component failures.

Abstract: The invention relates to an apparatus for reflecting incident light, in particular sunlight, comprising a plurality of reflector units arranged next to one another, in particular next to one another in two directions, each reflector unit comprising at least one reflector surface (4), wherein the reflector surfaces (4) of all of the reflector units are pivotable, wherein each reflector unit (2, 3, 4, 5) comprises a rod (3) and comprises a reflector surface (4) fastened at the upper free end of the rod (3) and a lower spherical hinge (5) at the lower end of the rod (3), with which hinge the rod (3) is connected in articulated fashion to a movable coupling element (6), which is common to all of the reflector units (2, 3, 4, 5), and comprises a spherical hinge (2) in an intermediate region between the upper end and the lower end of the rod (3), said hinge connecting, in articulated fashion, the rod to a stationary base element (1) which is common to all of the reflector units (2, 3, 4, 5) and bearing each reflect

Abstract: An adaptive temperature control system for cooling a working fluid at a target temperature includes a cooling device and a controller. The cooling device includes a compressor having a motor, a condenser having a fan, an expander, an evaporator, a coolant, and an inverter electrically connected with the motor of the compressor. The coolant in the evaporator is functioned to thermally exchange with the working fluid, thereby cooling the working fluid passing by the evaporator. The controller controls the rotary speeds of the motor and the fan according to a plurality of system parameters, optionally including the target temperature, a temperature in the evaporator, a mass flow of the working fluid, inlet and outlet pressures of compressor, and a temperature of the working fluid obtained at a sense position where the working fluid has passed by the evaporator.

Abstract: A heat-recovery-type refrigerating apparatus includes a compressor, a heat-source-side heat exchanger, and a plurality of usage-side heat exchangers, and refrigerant is sent from the usage-side heat exchanger functioning as a refrigerant radiator to the usage-side heat exchanger functioning as a refrigerant evaporator, whereby heat can be recovered between the usage-side heat exchangers. Here, a portion of the heat-source-side heat exchanger is configured as a precooling heat exchanger for always circulating high-pressure vapor refrigerant discharged from the compressor, and a refrigerant cooler for cooling an electrical equipment item is connected to a downstream side of the precooling heat exchanger.

Abstract: Features for distributing a sorber gas in cooling, heating or refrigeration systems with sorbers are disclosed. The sorbers may adsorb gas onto a sorbent material and desorb gas therefrom. Distribution of the gas to and from the sorber may be done with porous, rigid tubes. The tubes may be formed of composite material having pores. The pores may be implemented by flowing fluids through the composite material while the material cures. The sorbers may be reinforced with rods to provide greater strength and stability in load-inducing environments. The tubes may extend through the sorbent and thereby provide a channel for the gas to flow to and from the sorbent and the rest of the cooling, heating or refrigeration system.

Abstract: A magnetic device is provided for a magneto caloric heat pump regenerator. Magnets are arranged within two magnetic flux circuits in a manner than that provides at least four fields of increased magnetic flux density. The regenerator can be used to move working units of magneto caloric material through the fields of increase magnetic flux to provide for heating and cooling as part of heat pump cycle. The orientation of the magnets provides concentrated fields of magnetic flux to induce the magneto caloric effect while optimizing the size of the magnets required to create the fields.

Abstract: An air operated heat exchanger has a plurality of process tubes for process fluid, a plurality of rotating fans to move ambient air along an air stream path past the plurality of process tubes. At least one optical fibre is configured within the one or more air stream paths. At least one light pulse is passed into the at least one optical fibre, and at least one optical signal is detected from the at least one optical fibre in response to the at least one light pulse, to provide at least one signal profile. One or more air temperatures at a plurality of locations along the at least one optical fibre are determined from the at least one signal profile and evaluated against one or more comparison operational conditions.

Abstract: A distributor assembly for a space conditioning system comprising a sealed expansion device and a sealed distributor housing. The expansion device has a first opening, a second opening and an interior chamber there-between. The interior chamber contains an orifice housing, wherein the orifice housing has a through-hole orifice therein. The orifice housing is configured to move between the first opening and the second opening within the interior chamber. An outer surface of the orifice housing forms a fluid stop around the first opening such that a refrigeration fluid of the space conditioning system delivered through the second opening can substantially only pass through the through-hole orifice to the first opening. The distributor housing has a largest opening that is permanently sealed to the first opening of the sealed expansion device and a plurality of smaller openings configured to be fluidly connected to a heat-exchange coil of the space conditioning system.