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: In a method and apparatus for conditioning air for an enclosure, a first ambient airstream is cooled by a cooling coil of a refrigerant cooling system to reduce temperature and humidity, passed through a segment of a rotating desiccant wheel to reduce moisture content and increase temperature, and then supplied to the enclosure. The desiccant wheel is regenerated by a second ambient airstream heated with a condenser coil of the refrigerant system and then passed through a regeneration segment of the desiccant wheel. A bypass plenum allows a third ambient airstream to be selectively heated and cooled independent of the evaporator coil and desiccant wheel in the first plenum. Heated air bypassed from the second ambient airstream or an independent heater can perform the selective heating in the bypass plenum. The airstream in the bypass plenum is then supplied with the air treated in the first plenum to the enclosure.

Abstract: A system comprising a first plurality of microchannels, a second plurality of microchannels in thermal communication with the first plurality of microchannels such that the first plurality of microchannels and second plurality of microchannels form a heat exchanger, and a phase change composite in thermal communication with the heat exchanger and methods of operating are disclosed herein.

Abstract: An air purifier includes a display mounted between a front panel of a cabinet of the air purifier and an upper panel of the cabinet. The front panel includes a door which is configured and supported to be drawn in to the cabinet toward the display or drawn out from the cabinet away from the display. A display module including the display is disposed below the upper panel.

Abstract: The misting system has, in one embodiment, two seats with misting heads above each seat. A platform supports the seats, a tank, a pump and a power source. A supply line couples the tank-supplied pump and the misters. Removable canopy is mounted above seats by vertical and curvaceous struts and the misters are mounted on the struts. A user actuated UA control on the seat(s) activates pump ON to release mist. Wheels make the module mobile. Battery, solar power, and chiller are options. A countdown timer turns OFF the pump or controllable, inline valves after initial activation of the UA control. A level sensor in the tank alerts the user via a user display. A pressurized system can be used. Multiple modules coupled together are controlled by a master module with master controls.

Abstract: An air moving device has a housing with a primary flow path and a secondary flow path that extends from a secondary inlet of the housing and empties into an inner outlet adjacent the primary flow path. An impeller assembly rotates a blade to cause air to enter the housing and flow along the primary flow path. The flow of air through the primary flow path creates a low pressure region at the inner outlet of the secondary flow path, causing air to flow through the secondary flow path and mix with the air in the primary flow path. The mixture of air flows through a downstream portion of the primary flow path having an expanded width compared to an upstream portion of the primary flow path and exits the housing. Stator vanes may extend longitudinally within the housing to cause columnar air flow. The device may be used for destratification of thermal gradients of air within an enclosure, such as a home or warehouse.

Abstract: A double skin façade (DSF) for a building is disclosed. The DSF has a first façade, a second façade, and a gap extending therebetween. Movement of air is driven in an upward direction toward an upper end of the DSF, causing movement of air contaminants from a lower end of the DSF to the upper end of the DSF, and thereby enhancing the air quality of the street canyon by removing air contaminants from a street level adjacent the building. Also disclosed is a building having a DSF, and a method of enhancing air quality in a street canyon by constructing a DSF on a building.

Abstract: Disclosed is a powerless humidification module for an air cleaner which is capable of preventing leakage of water into the air cleaner. A powerless humidification module for an air cleaner which is detachably mounted on an upper portion of a body of the air cleaner and is capable of preventing leakage of water includes a base cover having a first opening opened toward the air cleaner and a second opening opened toward a side surface of the first opening, a cistern part located in the interior of the base cover and located such that a space defined between an inner partition wall and an outer partition wall having predetermined heights such that water supplied to one side thereof is stored surrounds a periphery of the first opening whereby water supplied to one side thereof is stored, and a humidification filter located in the second opening.

Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to collect event data from the one or more devices and to populate time entries in an occupancy history log with the event data. The event data includes a timestamp indicating a time when an event occurred, a set point temperature value for the HVAC system, and an occupancy status indicating whether a space is occupied. The device is further configured to identify blank time entries in the occupancy history log and to populate the blank time entries by forward filling the occupancy history log using event data from another time entry in the occupancy history log. The device is further configured to output the populated occupancy history log.

Abstract: A sensor device comprises a radio circuit; air-quality detectors; a microcontroller; a building management system (BMS) integration module, the BMS integration module including a transceiver distinct from the radio circuit and a co processor distinct from the microcontroller; and a memory that configures the sensor device to: transmit, during a first time period, a wake-up signal, wherein the wake-up signal includes at least a packet number; send, during a second time period, an acknowledgment (ACK) signal, wherein the ACK signal is sent in reference to a synchronized time slot and a packet number; transmit, during a third time period, at least sensor reading data of least one air quality detector, wherein the sensor reading data is encrypted using at least an encryption key stored in the memory; receive, during a fourth time period, a sleep signal; and enter into a sleep mode upon receipt of the sleep signal.

Abstract: A building system operates to receive building data from one or more building data sources associated with the building, wherein at least a portion of the building data is associated with control of the one or more environmental conditions of the building and generate, based on the building data, one or more data quality indicators for the building data received from the one or more building data sources, the one or more data quality indicators indicating quality levels of the building data. The building system operates to generate user interface data configured to cause a user device to display a user interface providing indications of the one or more data quality indicators.

Abstract: A device is configured to operate a Heating, Ventilation, and Air Conditioning (HVAC) system. The device is further configured to determine that the amount of time to close a pressure switch exceeds a time threshold value. The device is further configured to receive an audio signal from a microphone while operating the HVAC system, to identify an audio signature for the combustion air inducer, and to determine the audio signature for the combustion air inducer is present within the audio signal. The device is further configured to determine a fault type based on the determination that the audio signature for the combustion air inducer is present within the audio signal, to identify a component identifier for a component of the HVAC system that is associated with fault type, and to output a recommendation identifying the component identifier.

Abstract: Apparatus, systems and methods for ascertaining the occupancy of a building are presented. The building is divided into one or more control zones which correspond to physical areas of the building associated with controllable modules, such as HVAC units, lighting, irrigation, or other environmental features such as fountains, music, video, and the like. Zone parameters define how zone devices shall react to the number of occupants located in the particular zone. A building control system detects individual mobile devices in and around the building, and determines the locations of each device by using trilateration and/or location services. The identified mobile devices act as proxies for building occupants. The locations of these devices are correlated with the locations of the zones in the building, and the building control system then adjusts the operating parameters of the zone based on the number of devices present in the zone.

Abstract: System and methods for reconfiguring rooms or zones within an area in building automation are disclosed. One of the methods includes receiving a user request to group together at least a first segment and a second segment in a zone and verifying the user request using one or more rules. Upon verification of the user request, the method automatically links each object in the master segment to the corresponding object in the second segment to create the zone. Within this zone, a control program of the master segment provides a synchronized control of the environmental control equipment in the master segment and the second segment. This method of zoning provides the flexibility to perform rezoning on the fly without requiring traditional engineering, redesign or reprogramming.

Abstract: A camera (26) takes an image of at least one user (U1, U2, U3). A room environment information sensor (13) senses room environment information relating to an environment of a room (r1) in which the at least one user (U1, U2, U3) is present. The estimator (66) estimates a drowsiness condition of the at least one user (U1, U2, U3) based on the image of the at least one user (U1, U2, U3) taken by the camera (26) and the room environment information sensed by the room environment information sensor (13).

Abstract: A heat cycle system and a control method. The heat cycle system includes: driving devices, one or a plurality of outdoor units, and a plurality of indoor units, which are connected by pipelines; a bypass pipeline for the plurality of indoor units, a bypass valve being disposed in the bypass pipeline; a pressure sensor that senses a pressure difference ?Po across the plurality of outdoor units; and a controller that is preset with a pressure difference set value ?Pset, wherein the controller calculates a pressure offset parameter ?P=?Po??Pset and adjusts an opening degree of the bypass valve based on the pressure offset parameter ?P so that the pressure offset parameter ?P approaches zero, and wherein the controller is preset with a first pressure offset threshold P1, and the controller is configured such that closed indoor units enter a bypass mode one by one when ?P>P1, until ?P?P1.

Abstract: A heat pipe system including a heat pipe having a first end and a second end for transferring working fluid from the first to the second end, a first reservoir in fluid communication with the first end for holding working fluid in liquid form, a first heat exchanger for transmitting thermal energy from a heat source to working fluid in the first reservoir to vaporize the fluid, a second heat exchanger for transmitting thermal energy from vaporized working fluid to a heat sink thereby condensing the fluid, a return conduit and a pump for pumping the condensed working fluid along the return conduit, where the heat pipe, the return conduit and the first reservoir form a hermetically sealed circuit. A method of transferring thermal energy using a heat pipe system is also disclosed.

Abstract: The present disclosure envisages an air grille. The air grille comprises a front face and a duct face end. The duct face end is in the opposite of the front face. A plurality of flaps are configured on the duct face end, wherein the flaps are capable of collapsing. During shipping the flaps are collapsed whereas before installation the flaps are uncollapsed to facilitate containment of an air filter. The air grille has first thickness when the flaps are collapsed and second thickness when the flaps are uncollapsed, wherein the first thickness is less than the second thickness.

Abstract: A standoff comprising a handle that is adjustably associated with a bracket, with the handle self-latching in relation to bracket at a desired position and at a desired quantifiable torque in relation to the bracket.

Abstract: A filter, a manufacturing method for a filter, and an air conditioner are provided. The filter includes a casing (10), a transition tube (20), and a filter screen assembly (30). The filter screen assembly (30) is provided in the casing (10), fitted with and connected to an inner wall of the casing (10), the casing (10) is an integrally formed piece, and two axial ends of the casing (10) have neck sections (11), and two neck sections (11) are both fixedly connected to the transition tube (20).

Abstract: The present application provides a filter fixing device, comprising: a lock mounting piece, a hold-down piece, a push rod and at least one connecting rod. The lock mounting piece is provided with a lock used for engaging the lock receiving part on the filter fixing frame; the hold-down piece and the lock mounting piece are connected to each other in such a way that they can move relative to each other in a first direction, and the hold-down piece is used to hold down the filter; the push rod is connected to the hold-down piece and can pivotally rotate around an axis; at least one connecting rod is pivotally connected to the push rod and the lock mounting piece; the filter fixing device is configured in such a way that the rotation of the push rod relative to the hold-down piece may cause relative motion of the hold-down piece and the lock mounting piece in the first direction.

Abstract: A heat exchanger includes a plurality of tubes arranged in a juxtaposed configuration, and at least one first manifold member on the outside of the tubes. Each tube is wound to define a planar spiral, having a plurality of co-planar turns, and has an end portion, which extends starting from the inside of the corresponding planar spiral towards the outside thereof. The end portion is superimposed on the co-planar turns, in a position corresponding to a major face of the planar spiral, for connection to the manifold member. tube has a transverse depression defined in the co-planar turns at the major face of the planar spiral, and the transverse depression at least partially receives a a corresponding part of the end portion.

Abstract: According to various aspects, exemplary embodiments are disclosed of blow through direct fired heaters including evaporator coils and/or energy recovery ventilation.

Abstract: A burner assembly according to aspects of the disclosure includes a burner surface carried by a burner, the burner surface extending outward from a front side of the burner, a housing coupled to the burner on a side opposite the front side of the burner, a gasket disposed between the burner and the housing, a thermally anisotropic protective covering located on the front side of the burner and surrounding a perimeter of the burner surface, and an igniter positioned adjacent to the burner surface.

Abstract: A method, system, apparatus, and/or device for preheating air for a rooftop air handling unit (RTU). The method, system, apparatus, and/or device may include a barrier system configured to surround the RTU. The barrier system may include a structure to provide a frame for the barrier system, a first barrier configured to connect to a first side of the structure, and a collector configured to connect to a second side of the structure. The method, system, apparatus, and/or device may include a duct configured to connect between the collector and a chamber. The method, system, apparatus, and/or device may include a chamber configured to connect to an air intake hood of the RTU. The chamber may include a first opening to receive air stored in the cavity, a second opening to receive external air, and a diverter configured to switch between a first position and a second position.

Abstract: A heat source-side unit (10) includes a heat source-side circuit (11). The heat source-side circuit (11) includes a compression unit (20) including a lower-stage compression element (23) and a higher-stage compression element (21), an intermediate heat exchanger (17) disposed on a refrigerant path between the lower-stage compression element (23) and the higher-stage compression element (21), and a bypass passage (23c) connected to a suction pipe (23a) and a discharge pipe (23b) each connected to the lower-stage compression element (23). At startup of the compression unit (20), a first action is performed for stopping the lower-stage compression element (23) and operating the higher-stage compression element (21). This configuration thus suppresses occurrence of liquid compression at startup of a compressor.

Abstract: A refrigerant cycle apparatus, that circulates a flammable refrigerant in a refrigerant circuit, includes: a gas-side cutoff valve; a liquid-side cutoff valve, where the gas-side cutoff valve and the liquid-side cutoff valve are disposed on opposite sides of a first portion of the refrigerant circuit; a detection unit that detects refrigerant leakage from the first portion into a predetermined space; and a control unit that sets a cutoff state in the gas-side cutoff valve and the liquid-side cutoff valve when the detection unit detects the refrigerant leakage from the first portion into the predetermined space. The cutoff leakage rate at the gas-side cutoff valve is higher than the cutoff leakage rate at the liquid-side cutoff valve.

Abstract: A method of making an electrocaloric element includes providing an electrocaloric material, forming a first electrode at a first surface of the electrocaloric material, and forming a second electrode at a second surface of the electrocaloric material. The forming of the first electrode includes, or the forming of the second electrode includes, or the forming of each of the first and second electrodes independently includes modifying the respective first and/or second surface of the electrocaloric material with an electrically conductive surface modification.

Abstract: The present disclosure provides a compressor with an oil equalizing pipe, a parallel compressor set, and an oil equalizing method. The compressor includes at least one oil equalizing pipe, an opening at one end of the oil equalizing pipe is formed in a target oil level of an oil sump, and the opening at the other end of the oil equalizing pipe is formed in a suction port; and when the oil level of the oil sump of the compressor is higher than the target oil level, the extra oil enters the suction port through the oil equalizing pipe.

Abstract: The present disclosure discloses a nano-separation refrigeration system and discloses a refrigeration circulation method, wherein the nano-separation refrigeration system includes an evaporator provided with an inlet and an outlet; a condenser provided with a condensation cavity, a gas inlet, a gas outlet, and a liquid outlet, wherein a molecular sieve membrane is disposed in the condensation cavity between the gas inlet and the gas outlet, and the molecular sieve membrane is configured to separate a mixed gas; a first connecting pipe having one end connected to the outlet and the other end to the gas inlet; a second connecting pipe having one end connected to the liquid outlet and the other end to the inlet; a third connecting pipe having one end connected to the gas outlet and the other end to the inlet.

Abstract: A refrigeration system includes a main refrigeration circuit for holding refrigerant fluid, the main refrigeration circuit including: a compression device 12, a heat rejecting heat exchanger 14, an expansion device 18 and a heat absorbing heat exchanger 16. In addition, the refrigeration system includes a buffer tank 20 attached to the main refrigeration circuit, with valves 22, 24 for controlling flow of refrigerant fluid between the main refrigeration circuit and the buffer tank 20. The refrigeration system is arranged such that the valves 22, 24 are controlled to transfer refrigerant fluid between the main refrigeration circuit and the buffer tank 20 based on a measure of sub-cooling in the main refrigeration circuit.

Abstract: A cooling apparatus includes a compressor, a first flow path and a second flow path branched from a branch point, a condenser disposed downstream of the branch point in the first flow path, a first decompressor disposed downstream of the condenser, a plurality of evaporators disposed downstream of the first decompressor and connected in series, a second decompressor disposed downstream of the branch point in the second flow path, a detection unit, and a control unit. The second flow path includes a hot-gas flow path configured to connect an outlet of the second decompressor and a meeting point with the first flow path. The control unit controls a degree of opening of the second decompressor depending on the temperature detected by the first temperature-detection unit and controls a degree of opening of the first decompressor depending on the temperature and/or the pressure detected by the detection unit.

Abstract: An ice maker for freezing water into ice pieces, the ice maker including an elongated cage having a central revolving axis about which the elongated cage revolves. The elongated cage having a first end, a second end and at least one elongated slot extending between the first end and the second end. An ice tray is configured to be received in the at least one elongated slot. The ice tray includes a plurality of cavities for receiving water to be frozen into ice pieces. A motor is coupled to the elongated cage for revolving the elongated cage about the central revolving axis. A controller is connected to the motor for controlling the revolving of the elongated cage about the central revolving axis.

Abstract: An ice maker assembly includes an ice making apparatus for an appliance with an ice making tray having a water basin formed by a metallic ice forming plate and at least one perimeter sidewall extending upwardly from a top surface of the ice forming plate. The ice making tray also has a grid with at least one dividing wall. The at least one perimeter sidewall and the at least one dividing wall and the top surface of the ice forming plate form at least one ice compartment having an upper surface and a lower surface. An ice body is formed in the at least one ice compartment. Moreover, the at least one perimeter sidewall and the at least one dividing wall form a draft angle with the top surface of the ice forming plate, of about 17 degrees to about 25 degrees.

Abstract: An ice-tray for ice-making machines is formed by modular fabricated cups that can assembled together within a frame to create an ice-tray of arbitrary dimensions allowing a sharing of components among a variety of ice-tray sizes. Individual cups may include ice formation sensors or heaters or may be heated by an induction heating system.

Abstract: An article storage and dispensing apparatus and method in which articles made by series production are distributed from an article supplier into a storage compartment of predetermined dimensions for storage of articles in front and rear rows of article storage positions. An article distributor in the storage compartment has a carriage, a carriage drive which is configured to drive the carriage in a reversible horizontal carriage drive direction across at least part of the width of the storage compartment, and an article support mounted on the carriage and configured to receive articles from the article supplier above the support when the carriage is in a start position. An article dispenser is associated with the article support to dispense articles selectively in opposite horizontal dispensing directions transverse to the carriage drive direction off the front and rear ends of the support to drop into front and rear article rows.

Abstract: The present disclosure relates to a refrigerator with improved productivity and quality by using a planar heater. The refrigerator includes a main body having a storage compartment, a door rotatably coupled to the body to open and close the storage compartment, and a planar heater installed on the door to prevent dew condensation from being generated on the door, wherein the planar heater is formed in a film form to be attached to the door.

Abstract: A vacuum adiabatic body between a first space and a second space includes an alternating current line through which AC current flows as a driving source, a direct current line through which direct current flows as a driving source, and a signal line through which a control signal flows as electric lines configured to electrically connect the first space to the second space. Thus, the number of lines passing through the vacuum adiabatic body may be reduced.

Abstract: A retention member for use in a refrigerator that includes an evaporator fin, a number of evaporator coils, a heater, and a bracket. The bracket includes a first portion extending in a first direction and defines a first aperture configured to receive a portion of a first evaporator coil of the number of evaporator coils. The bracket includes a second portion extending from the first portion to a first end in a second direction substantially transverse to the first direction. A tab extends from the second portion in the first direction. The tab is spaced apart from the first portion by a first distance to prevent or mitigate movement of the second evaporator coil of the number of evaporator coils.

Abstract: A vacuum adiabatic body may include: a first plate member; a second plate member; a sealing part sealing the first plate member and the second plate member to provide a third space; a supporting unit maintaining the third space; a heat resistance unit at least including a conductive resistance sheet capable of resisting heat conduction flowing along a wall for the third space to decrease a heat transfer amount between the first plate member and the second plate member; and an exhaust port through which a gas in the third space is exhausted. A side frame may be fastened to the conductive resistance sheet and the second plate member, and the side frame is fastened to an edge portion of the second plate member. Accordingly, the formation of dews may be prevented and an adiabatic effect may be improved.

Abstract: An appliance door including an outer skin extending between first and second distal edges thereof, and an inner liner disposed adjacent the outer skin such that a space is formed therebetween. A first endcap is disposed at the first distal edge of the outer skin and the first endcap partially enclose the space formed between the outer skin and the liner. A wireless module is positioned on the first endcap and is configured to wirelessly communicate with a mobile device. The wireless module includes a printed circuit board and an antenna, wherein the antenna faces outwards and away from the first endcap.

Abstract: A side-open left-right-door arbitrary-opening structure of a refrigerator comprises four hinge shafts are fixedly connected at left and right sides of a refrigerator body in pairs respectively, left and right sides of upper and lower end faces of a refrigerator door are all provided with an opening neck, each hinge shaft is correspondingly placed in one opening neck, four hinge shaft stoppers are slidably arranged on the upper and lower end faces of the refrigerator door in pairs respectively, one spring is arranged between two hinge shaft stoppers in each pair, tail ends of the hinge shaft stoppers on the upper and lower end faces of the refrigerator door extend into the opening necks at the corresponding sides, and the hinge shafts at the corresponding sides are positioned in the opening necks.

Abstract: A refrigerator appliance includes a cabinet with a food storage chamber defined in the cabinet. The refrigerator appliance also includes a door rotatably mounted to the cabinet. The door includes an outer surface and an opposing inner surface, wherein the inner surface faces towards the food storage chamber when the door is in the closed position and the outer surface faces away from the food storage chamber when the door is in the closed position. The refrigerator appliance also includes a dispenser assembly with a plurality of liquid sources fluidly coupled to the dispenser assembly and a multi-fluid tube. Each liquid source of the plurality of liquid sources is fluidly coupled to the dispenser assembly through the multi-fluid tube.

Abstract: A refrigerator cabinet including a first shelf defining a U-shape, wherein the U-shape is off-center so that a first side of the U-shape is wider than the an opposite, second side of the U-shape, a second U-shaped shelf having left, right and back portions located in a horizontal fashion above the first shelf, and a mounting structure for supporting the first and second U-shaped shelves.

Abstract: A plant and process are used to liquefy and purify a high pressure ethane feed stream. The plant includes a cascaded refrigeration system that refrigerates the ethane feed stream. The refrigeration system includes a propylene circuit, an ethylene circuit and a mixed refrigerant circuit. The mixed refrigerant circuit includes a refrigerant that includes ethane and methane. The plant includes a demethanizer that is configured to remove methane and other natural gas liquids from the refrigerated ethane stream.

Abstract: A furnace working system includes a vacuumed pre-heating zone, a vacuumed gas heating zone disposed behind the pre-heating zone, a vacuumed electric heating zone, a high cooling zone disposed behind the electric heating zone, a low cooling zone disposed behind the high cooling zone, a conveyer disposed in the zones for transporting a work piece through the zones, a pipe couples the high cooling zone to the gas heating zone for supplying a heat from the high cooling zone to the gas heating zone, and a conduit couples the low cooling zone to the pre-heating zone for supplying a heat from the low cooling zone to the pre-heating zone. A transition zone is disposed between the gas heating zone and the electric heating zone.

Abstract: The present invention relates to a furnace device for heating a plate, in particular a metal plate, by convection. The furnace device has a housing, in which a temperature control region for temperature-controlling a component part and an adjustment region are formed, wherein the adjustment region has a temperature control device for adjusting a temperature of a temperature control fluid. Further, the furnace device has a positioning device for positioning the plate in the temperature control region in a predetermined orientation, and a ventilator, which is arranged in the housing and which is adapted to circulate the temperature control fluid in the housing between the temperature control region and the adjustment region such that the temperature control fluid is flowable in a flow direction along a surface of the plate.

Abstract: Systems and methods for fabrication of ceramics from celestial materials using microwave sintering and mechanical compression for space mining applications are disclosed. In one aspect, a chamber for sintering loose mineral material into solid ceramic shapes includes a plurality of zirconia insulting plates configured to clamp the mineral material and forming a cavity in which the mineral loose material is contained, and at least one dipole array configured to generate microwave energy and apply the microwave energy to the mineral material.

Abstract: A shell-and-tube heat exchanger and an air conditioning system. The shell-and-tube heat exchanger includes: a shell provided with a liquid inlet and an vapor outlet, the vapor outlet being disposed at an top portion of the shell; and a heat exchange tube bundle disposed in the shell in an axial direction of the shell; wherein the heat exchange tube bundle includes: a plurality of first heat exchange tubes located at an upper portion, the first heat exchange tubes having a first spacing therebetween; and a plurality of second heat exchange tubes located at a lower portion, the second heat exchange tubes having a second spacing therebetween; the first spacing is different from the second spacing.

Abstract: A heat exchanger including a plurality of heat exchanger plates in a stacked arrangement. At least two counterflow sections are positioned adjacent each other. The counterflow sections comprise an intermediate section of each heat exchanger plate. The heat exchanger plates configured to transfer heat between a first fluid and a second fluid flowing in an opposite directions from the first fluid through a respective heat exchanger plate. At least one tent section is positioned on each end of each counterflow section. The tent sections are configured to angle the flow direction of the first and second fluids in the tent sections relative to the flow direction in the counterflow sections. A wall is positioned between each tent section and each counterflow section configured to provide a load path at opposite ends of the heat exchanger to oppose forces due to pressure on the tent sections.