Abstract: Provided are an emulsion fuel supply device capable of stably driving a combustion apparatus with a simple device configuration, and a supply method of an emulsion fuel. A device 1 is a device for supplying the emulsion fuel to a combustion apparatus 70, including a processed water generation device 10 for removing Ca and Mg ions from raw water and allowing to remain or adding Na ions in the raw water, tanks 20 and 30, a section for merging a fuel oil from the tank 30 and processed water from the tank 20, a section 50 for producing the emulsion fuel from a mixture of the merged fuel oil and processed water, and a section for supplying the emulsion fuel to the combustion apparatus 70.

Abstract: In a stack leading from a fired heater, a plurality of damper blades are positioned at a longitudinal location, each blade being at least partly rotatable around its longitudinal axis to regulate flow through the stack. A plurality of controllers is operatively associated with the plurality of parallel blades to effect rotation of the blades. At least one of the controllers is decoupled from the rest of the plurality of controllers and used to independently control at least one but not all of the plurality of damper blades. The damper blades can be parallel or opposed.

Abstract: An engine component is generally provided for a gas turbine engine generating hot combustion gas flow. In one embodiment, the engine the engine component includes a substrate having a hot surface facing the hot combustion gas flow and a cooling surface facing a cooling fluid flow. The substrate defines a film hole extending through the substrate and having an inlet provided on the cooling surface, an outlet provided on the hot surface, and a passage connecting the inlet and the outlet. The passage defines a diffusion section having a pair of side passage walls extending to the outlet on the hot surface, with each of the side passage walls within the diffusion section having a surface roughness (Ra) of about 4 mils to about 7 mils. Methods are also provided for forming a film hole in a CMC substrate.

Abstract: Can-annular burners for gas turbine engines with flow conditioners having locally varying, asymmetrical patterns of circumferential perforations, to promote uniform fuel-air mixture among all premixers in the burner basket. Any one or more of the perforation pattern, pattern density, perforation profiles and perforation cross sectional area is locally varied to alter circumferential airflow into the burner basket, which in turn mitigates non-uniform thru-flow variations across the burner's air inlet plane. In some embodiments, the flow conditioner asymmetric perforation patterns are tailored for individual burner locations within the engine's combustor section annular ring, which mitigates non-uniform thru-flow variation among different respective burners in the combustor section annular ring. Thru-flow uniformity within each burner and among all the combustor section burners promotes uniform engine combustion.

Abstract: A fuel system (10) for a gas turbine engine that improves efficiency by supplying fuel to a primary stage (14) and secondary stage (16) via a common fuel source (18) is disclosed. The fuel system (10) may be formed from first and second primary injector assembly stages (20, 22) and a first premix injector assembly stage (24) positioned upstream from a combustor chamber (26), whereby the first premix injector assembly stage (24) is a secondary injector system. The second primary stage (22) and the first premix stage (24) may be in fluid communication with the same fuel source (18) to eliminate duplicative components found within systems where fuel is supplied individually to the second primary stage and the first premix stage. In at least one embodiment, the second primary injector assembly stage (22) and the first premix injector assembly stage (24) may each be in communication with a fuel manifold (28) configured to supply more fuel to the second primary stage (22) than the first premix stage (24).

Abstract: A burner head for a burner defines a burner longitudinal axis along which the burner extends. The burner head includes a base body and at least one oxidant duct defining a duct longitudinal axis. The oxidant duct is arranged in the base body at a radial spacing to the burner longitudinal axis. A fuel duct body is inserted into the oxidant duct and at least one fuel nozzle is configured on the fuel duct body so as to open into the oxidant duct.

Abstract: An assembly for a turbomachine combustion chamber, including a boss for turbomachine combustion chamber, including a tubular body configured to be inserted in a receiving orifice formed in an annular wall of a flame tube and to accommodate a shank of a connecting pin for connecting the flame tube to an external casing, a first end of the boss including an annular flange configured to prevent radial translational movement of the boss in a first direction, and a second end of the boss being configured to be crimped to the wall of the flame tube so as to prevent radial translational movement of the boss in a second direction, and an annular element configured to fit coaxially with the receiving orifice and in radial contact with the annular wall of the flame tube on the one hand and with the annular flange of the boss on the other.

Abstract: A log stove and fire stand are disclosed wherein the fire stand has a grill with three adjustable legs positioned over the log stove to complement the structural integrity of the burning log stove. The log stove may include a variable cross-section static air flow design and a ventilator gate that provide a method to inject excessive air (oxygen) flow into the combustion chamber throughout the burn cycle for complete fuel consumption. An excessive air volume to fuel ratio insures complete combustion of the billet thus reducing pollution.

Abstract: A cooker with a body having separable upper and lower portions with an exhaust vent and an intake port, respectively. A fuel grate is inside the lower portion. A diffuser interposes the fuel grate and the air intake port. A snorkel provides an air pathway from the air intake port to a location outside the cooker body and above the fuel grate.

Abstract: A hybrid oven comprising an oven case; an upper cover is hinged on an upper part of the oven case; wherein a control panel is provided at an upper part of a front surface of the oven case; a lower part of the oven case is provided with an oven; a back panel inside the oven is provided with electrical heating elements; a bottom part inside the oven is provided with gas heating elements; the electrical heating elements and the gas heating elements are electrically connected to the control panel.

Abstract: A hybrid oven comprising an oven case; an upper cover is hinged on an upper part of the oven case; wherein a control panel is provided at an upper part of a front surface of the oven case; a lower part of the oven case is provided with an oven; a back panel inside the oven is provided with electrical heating elements; a bottom part inside the oven is provided with gas heating elements; the electrical heating elements and the gas heating elements are electrically connected to the control panel.

Abstract: A gas burner safety system comprises dual sensor arrays, the first array positioned proximal to the gas burner and the second array positioned proximal to a control used to turn on and off and regulate the flame of the gas burner. The first array senses the flame components such that a flame signature is obtained when no object is placed on or above the flame and a flame image is obtained when an object is proximal to the flame. By comparing the flame signature and the flame image, a central control unit operatively connected to the sensor arrays can determine the presence or absence of an object proximal to the flame. The second sensor array is positioned to detect a human hand proximal to the control. In operation, if the flame image matches the flame signature and a human hand is not detected proximal to the control, the central control unit turns off the gas burner by causing the closure of a valve in the gas supply line to the gas burner.

Abstract: Door for apparatus to cook and/or heat food, that comprises at least a perimeter frame and two panels, located distanced and facing each other and delimited externally by said at least one perimeter frame, so as to form a closed chamber, at least one of the two panels being co-molded with the at least one perimeter frame.

Abstract: Disclosed herein is an oven having guide rails. The oven includes a coking compartment, a shelf member disposed at an inside the cooking compartment and provided such that food substance is mounted, a plurality of guide rails installed such that the shelf member is withdrawn from the cooking compartment, and a fixing wire installed as to connect the plurality of guide rails and having a plurality of contact units configured to make contact with the plurality of guide rails, respectively, and the at least one contact unit is formed while provided with a step. The left and right movements of guide rails may be able to be stabilized by use of the fixing wire stably coupled to the guide rails.

Abstract: Novel method of shielding hot surface and improving panel heaters (1). The method relates to new system of shield comprising of shield (3) and corner pieces (2) that not only cover the hot surface of panel heaters (1) but also facilitates second path of convection currents for space heating by maintaining optimum current space.

Abstract: The current invention is a furnace control unit that is affixed to a electronic on/off switch that controls a heating unit. The furnace control unit has a programmable processing unit, display unit, power source, input buttons, a switch flipping means. It is attached next to the electronic on/off switch that control a heating source. The unit would be programmed to turn the switch on or off depending on input criteria such as time of date and temperature.

Abstract: The invention relates to a regulating valve (1) for regulating the flow rate and differential pressure in fluid-guiding heating or cooling systems, the regulating valve consisting of a housing (2) with an inlet (3) and outlet (4) and therebetween a connection piece (5) with disposed therein a regulating device (9), a first flow-regulating device (10) and a second flow-regulating device (11). In the direction of flow of the fluid flowing through the valve, following the inlet (3) is the first flow-regulating device (10), followed by the second flow-regulating device (11), followed by the regulating device (9), followed by the outlet (4). Further provided arc a spindle (12), disposed in the connection piece (5), an actuating part (13) and a choke element (14) which is part of the first flow-regulating device (10). The spindle (12) axially penetrates both the regulating device and the second flow-regulating device (11).

Abstract: A humidity control apparatus includes a housing having an air passage formed therein; a humidity control unit including a first conductive electrode provided in the air passage and having an adsorbent attached thereto, a second conductive electrode provided in the air passage and disposed along the first conductive electrode, and a third conductive electrode interposed between the first conductive electrode and the second conductive electrode and having a potential intermediate between potentials of the first conductive electrode and the second conductive electrode; a power supply unit configured to apply a voltage to the first conductive electrode and the second conductive electrode; and a fan configured to supply air to the air passage to cause the air to flow through the humidity control unit.

Abstract: The laminate comprising a first film of a polymer, a second film of a non-woven textile material, and a third film of a non-woven textile material, wherein the first film is arranged between the second and the third film, and wherein the second film and the third film of the laminate are provided with a corrugated surface provided with a plurality of ribs and valleys in a first direction, and a protrusion arranged in a direction at least substantially perpendicular to the said ribs and valleys. This may be created by thermoforming and for instance comprises a pattern of waves. The laminate is intended for use in an air-conditioner.

Abstract: A waterborne data center facility that utilizes a closed-looped heat management system that is both energy-efficient and cost-effective is disclosed. Embodiments employ a closed-looped, energy efficient, cost effective thermal management system that leverages natural resources to control thermal conditions and reduce the overall requirement for cooling power.

Abstract: An air blowing device adapted to be used in such a manner that at least two of the devices are horizontally and/or vertically aligned with each other, thereby to obtain a uniform flow of air in the downstream direction from device to device. An air-permeable front surface (11f) is formed to the blowing device (1) at the downstream side of a rectifier mechanism, and side surface sections (11a) which extend in the upstream direction of the device (1) are formed at both edges of the air-permeable front surface (11f). First ventilation holes (70a) are distributed at the air-permeable front surface (11f), and second ventilation holes (70b) are distributed at the side surface sections (11a).

Abstract: An apparatus, system, and methods for measuring environmental parameters are disclosed. The apparatus, system and methods can be used for a variety of applications, including HVAC air balancing and building commissioning. The system includes a variety of wireless sensing modules and wearable modules for control. display, and storage. Parameters measured include air and water temperature, pressure. velocity, and flow. Also included are sensors for light intensity, CO concentrations, and CO2 concentrations.

Abstract: Methods, devices, computer readable medium, and systems are described for sending from a thermostat device to a server device a target ecorank setting, and receiving from the server a climate system setting wherein the climate system setting is derived from a comparison of energy consumed by the climate system controlled by the thermostat device in comparison to energy consumed by a comparison group, the comparison group comprising other climate systems controlled by other thermostat devices. The comparison group is determined based on profile information comprising information describing the dwelling, dwelling size, dwelling location, occupants, and climate system technology. The climate system setting is determined based on an energy savings needed to match or better the ecorank target setting based on a comparison group and comparison time period. The energy consumed by the climate systems may be reported by an associated energy measurement device or inferred by heating and cooling hours.

Abstract: A management system and a management method according to the invention calculate, on the basis of collected weather information, an operation record of a device, a state value and an acceptable range set for an area where the device is installed, and power-suppression-time during which electric power is suppressed, change-time during which the state value of the area is changed in response to the power-suppression-time by operations of the device, generate, using the calculated change-time, a control-schedule for controlling the device, and control the device. This enables reduction of electric power usage with the state value set for the area where the device is installed kept within the range in accordance with the power-suppression-time.

Abstract: An environmental control system for a building in a geographic location and having a heating, ventilation and air-conditioning (HVAC) system includes at least one computer-readable medium having instructions stored thereon that, when executed by at least one processing device in communication with the external application, enables the at least one processing device to receive weather data characterizing a weather forecast over a predetermined time period for the geographic location, receive free-cooling window data, determine, based on the weather data and free-cooling window data, an available free-cooling time window, and issue to the external application an executable command to the HVAC system to enter free-cooling mode during the available free-cooling time window.

Abstract: An air conditioner unit and methods of operating the same is provided. The air conditioner unit may include a refrigeration loop having a variable speed compressor, an electronic expansion valve, an indoor heat exchanger, and an outdoor heat exchanger. An indoor fan and an outdoor fan may be configured to urge air through the indoor and outdoor heat exchangers, respectively. A bulkhead may be disposed between the indoor heat exchanger and the outdoor heat exchanger to define an indoor portion and an outdoor portion of the unit. A vent aperture may be defined in the bulkhead, and the indoor and outdoor fans may be configured to urge make-up air from the outdoor portion through the vent aperture to the indoor portion. In addition, an auxiliary fan may be disposed within the vent aperture to provide additional “boost” make-up air, and a heating bank may be used to heat make-up air if desired.

Abstract: The present disclosure relates to a processor based system for using temperature information being reported by a plurality of sensors present within a predetermined environment and controlling how various ones of the sensors are grouped together into a plurality of groups for monitoring purposes. The system includes a software subsystem that generates an association matrix screen on a display system associated with a computer system being used by a user with receives the temperature information. The association matrix screen enables a user to associate or disassociate specific sensors with selected groups of sensors using selection commands, as well as to provide temperature related information concerning all of the sensors being monitored by the system. Each of the sensors is not limited to being assigned to only a single group of sensors but may instead be assigned to two or more different groups of sensors for purposes of monitoring and/or control.

Abstract: An indoor unit of an air-conditioning apparatus includes a casing including an air inlet, an air outlet, and an air passage communicating between the air inlet and the air outlet, the air inlet being located lower than the air outlet, an indoor heat exchanger disposed inside the casing, an indoor fan disposed inside the casing and configured to supply air to the indoor heat exchanger, a refrigerant leakage sensor disposed in the air passage between the air inlet and the air outlet at a position lower than the indoor heat exchanger and the air outlet, and configured to detect refrigerant leakage, and a controller configured to determine whether refrigerant leakage occurs according to a detection result of the refrigerant leakage sensor.

Abstract: A system and method for crowd-sourced environmental system control and building maintenance includes a server for providing selective access to building occupants and managers. Users are permitted to generate building reports in the form of (i) thermal reports using a thermal report module, and/or (ii) maintenance reports using a maintenance report module. The reports are each geo-located to locations within the building, and are then captured, stored, and aggregated at the server. The aggregated reports are sorted according to their geo-locations and comfort rules are used to (i) permit a manager at a client computer to access the server to respond, and/or (ii) automatically respond and assign a response status to particular reports. An inspection checklist interface is generated and populated to display a list of preventative maintenance tasks, each of the tasks being user-selectable to designate completion, with the updated status of the reports being stored at the server.

Abstract: An air conditioner to prevent fingers from being jammed therein during a closing operation of an opening and a method of controlling the same are provided. The air conditioner includes a housing in which an opening is formed, a door unit provided to be movable around the opening to open or close the opening, and at least one configured to control the door unit to stop at a position spaced a preset first distance from the opening during a closing operation of the door unit and control the closing operation of the door unit.

Abstract: A shade apparatus for use in broiler poultry houses can include a plurality of contoured vanes positioned in vertical alignment. Each vane can have first and second opposed lateral sides and is contoured upwardly such that the first lateral side resides below the second lateral side. The vanes are connected by a first plurality of spacers attached to the vanes proximate the first lateral side of the vanes, and a second plurality of spacers attached to the vanes proximate the second lateral side of the vanes. A portion of each vane extends over a horizontal axis defined by the first lateral side of a vane positioned immediately above. The apparatus can include brackets that facilitate mounting of the apparatus over a fan vent of a broiler poultry house and maintain the vanes a predetermined optimal distance from the fan vent.

Abstract: An insulated cover for a whole-house fan includes a base defining an opening for disposal over the whole-house fan, and first and second, oppositely disposed, ceiling doors each hingedly connected to the base. In a closed configuration the ceiling doors each sit at an acute angle with respect to a horizontal plane corresponding with a bottom surface of the base. The base and ceiling doors are formed from thermal insulation board.

Abstract: An improved method and apparatus allows fresh air to be introduced into a building through action of a special manifold or manifolds designed to direct fresh air into the interior atmosphere of the building, while air from the interior of the building is directed to the furnace combustion system and ultimately exhausted to the exterior of the building.

Abstract: A tracking system for a solar collector is disclosed. The tracking system includes at least two polarization cameras and a tracking controller configured to: determine orientations of maximal intensity of polarized light received from the at least one heliostat mirror; generate radial lines based on the orientation of maximal intensity of polarized light from the at least one heliostat mirror; determine a position of the sun based on an intersection of the radial lines; and re-orient the at least one heliostat mirror based on the determined position of the sun. In the preferred embodiment, the sun position may be determined based on radial lines corresponding to three or more cameras mounted around the receiver aperture.

Abstract: When a refrigerant amount balance control is executed, in indoor units where the refrigerant supercooling degree is lower than an average refrigerant supercooling degree, the refrigerant pressure on a downstream side of indoor expansion valves decreases since the degrees of opening of the valves are decreased. On the other hand, in an indoor unit where the refrigerant supercooling degree is higher than the average refrigerant supercooling degree, although the degrees of opening of the valves are made high, the refrigerant pressure on the downstream side of the valves decreases and this decreases the refrigerant pressure on the downstream side of the indoor expansion valve, so that the difference in pressure between on the upstream side and on the downstream side of the indoor expansion valve increases and the liquid refrigerant staying at an indoor heat exchanger of the indoor unit consequently flows out into a liquid pipe.

Abstract: In a refrigeration apparatus, in a first operation mode, a comparison is made between a first liquid pipe temperature, which is a temperature of a refrigerant on a side of a liquid pipe heat exchanger that is near usage-side heat exchangers, and a second liquid pipe temperature, which is a temperature of the refrigerant on a side of the liquid pipe heat exchanger that is near a plurality of heat-source-side heat exchangers, the liquid pipe heat exchanger performing heat exchange with the refrigerant flowing through liquid sides of the heat-source-side heat exchangers. When an evaporation-switch liquid pipe temperature condition is satisfied, the heat-source-side heat exchanger functioning as a radiator of the refrigerant is switched to an evaporator of the refrigerant, and the first operation mode is switched to a second operation mode in which the plurality of heat-source-side heat exchangers are caused to function as evaporators of the refrigerant.

Abstract: An air-conditioning apparatus includes a heat medium system configured to control a flow rate of the heat medium supplied to the heat source unit side heat exchanger that exchanges heat between refrigerant and the heat medium, the heat medium system having at least one system of a heat medium conveyor, a heat medium flow rate adjuster, and a heat medium flow rate control device. In the air-conditioning apparatus, the operation of each of use-side heat exchangers is changed to a cooling operation or a heating operation in accordance with a control command, and a cooling and heating concurrent operation is performed. The refrigerant is caused to flow through the heat source unit side heat exchanger in accordance with the ratio of the total cooling capacity of the use-side heat exchangers to the total heating capacity of the use-side heat exchangers.

Abstract: An air-conditioning apparatus, including an outdoor unit including a compressor and an outdoor heat exchanger, a plurality of indoor units each including an indoor heat exchanger, and a relay unit configured to distribute refrigerant supplied from the outdoor unit to the plurality of indoor units, the relay unit including a first branch unit in which liquid-side pipes connected to the plurality of indoor units join together, and a refrigerant shutoff valve, which is configured to control bidirectional flow of the refrigerant, and is provided to the first branch unit, the number of the refrigerant shut off valve being smaller than a number of the plurality of indoor units.

Abstract: An electrochemical heat transfer device utilizes an electrochemical hydrogen compressor to pump hydrogen into and out of a reservoir having a metal hydride forming alloy therein. The absorption of hydrogen by the metal hydride forming alloy is exothermic, produces heat, and the desorption of the hydrogen from the metal hydride forming alloy is endothermic and draws heat in. An electrochemical hydrogen compressor may be configured between to reservoirs and pump hydrogen back and forth to form a heat transfer device. A heat exchange device may be coupled with the reservoir or may comprise the outer surface of the reservoir to transfer heat to an object or to the surroundings. A closed loop may be configured having two reservoirs and one or two electrochemical hydrogen compressors to pump the hydrogen in a loop around the system.

Abstract: The invention relates to an air conditioning device having at least one heat pipe (100), in particular a thermosiphon, having at least one electro- or magnetocaloric material (4) under at least temporary influence of an electrical and/or magnet field, and having a heat transfer oriented from one first end to another second end of the heat pipe. A plurality of these heat pipes, having electro- or magnetocaloric materials integrated or arranged therein, are preferably contained, connected in series in a cascade-like manner and optionally connected to one another via heat exchangers or switchable heat flow regulators.

Abstract: The disclosure is directed to an energy efficient thermal protection assembly. The thermal protection assembly can comprise three or more thermoelectric unit layers capable of active use of the Peltier effect; and at least one capacitance spacer block suitable for storing heat and providing a delayed thermal reaction time of the assembly. The capacitance spacer block is thermally connected between the thermoelectric unit layers. The present disclosure further relates to a thermoelectric transport and storage devices for transporting or storing temperature sensitive goods, for example, vaccines, chemicals, biologicals, and other temperature sensitive goods. The transport or storage device can be configured and provide on-board energy storage for sustaining, for multiple days, at a constant-temperature, with an acceptable temperature variation band.

Abstract: The present invention relates to an apparatus including: firstly,—a cold production unit (U), having a line for the flow of a coolant (BC);—means for compressing (1), decompressing (4), and evaporating (5) said coolant; and—an air condenser (2) and a main water condenser (CEP). Said facility also includes an auxiliary water flow device that has a first water reception vessel and a second water reception vessel (20, 30). Said auxiliary device defines at least one so-called “water heating” or “water-based calorie removal” path, leading from the first vessel to the second vessel and including at least one main section (65) for removing calories via water and capable of engaging with a main section (7) for exchanging heat with the coolant in the main water condenser (CEP). Said auxiliary device also defines a second so-called “water cooling” path, leading from the second vessel to the first vessel and including at least one water cooling section (82, 92) in a heat exchanger (ECA, EVS).

Abstract: A refrigeration oil replacement device of a totally hermetic compressor in a refrigeration recycling system is disclosed. The totally hermetic compressor forms a hermetic chamber with a high-pressure end and a low-pressure end, and includes an input pipeline connected from the low-pressure end to the hermetic chamber, and an output pipeline connected from the high-pressure end to the hermetic chamber. The refrigeration oil replacement device has a gas charging pipeline connected to the hermetic chamber for filling in gas, and a drainage pipeline connected to the hermetic chamber. When gas is pumped in from the gas charging pipeline, the deteriorated refrigeration oil inside the hermetic chamber will be discharged from the drainage pipeline under the pressure.

Abstract: The invention relates to a condenser receiver adapted to receive and house a fluid used in a cold loop of an air-conditioning system, said condenser receiver comprising an outer wall and an inner wall. The inner wall defines an inner space for housing a fluid, while the outer wall is provided on its outer surface with a plurality of ribs that increase the heat exchange between the fluid contained in the inner space and the ambient air outside the condenser receiver.

Abstract: The refrigeration system includes a compressor, a condenser, an evaporator, one or both of a receiver drier unit and an accumulator unit fluidly connected by refrigerant lines to form a refrigerant circuit. The receiver drier unit includes a receiver drier and a first sensor, and the accumulator unit includes an accumulator and a second sensor. A controller is electrically connected to the first and second sensors and in some cases electrically connected to an electrical valve. The electrical valve is fluidly connected to a refrigerant reservoir. The controller determines the refrigerant charge level, and selectively controls the electrical valve to allow the refrigerant to flow from the refrigerant reservoir to the refrigerant circuit when the refrigerant charge level is below the predetermined refrigerant charge level.

Abstract: The present invention comprises: a plurality of first tubes and a plurality of second tubes in which a refrigerant passes through and which are formed so as to be long in the vertical direction, respectively, and spaced from each other such that air flows therebetween; and fins respectively coming into contact with the first tubes and the second tubes, wherein the plurality of second tubes are positioned to be spaced from each other at the slip stream of the plurality of first tubes in the direction in which the air flows, the fins include: a first louver group comprising a plurality of louvers positioned among the plurality of first tubes and spaced from each other in the direction in which the air flows; and a second louver group comprising a plurality of louvers positioned among the plurality of second tubes and spaced from each other in the direction in which the air flows, and the plurality of louvers of the first louver group are formed such that the intervals thereof from the other adjacent louvers gra

Abstract: A refrigeration apparatus includes a compressor, a heat-source-side heat exchanger operable as a refrigerant evaporator or radiator, and a usage-side heat exchanger operable as a refrigerant evaporator or radiator. The heat-source-side heat exchanger is disposed inside a heat source unit having an exhaust port and an outdoor fan in an upper part, and an intake port in a side part. The heat-source-side heat exchanger includes first and second heat-source-side heat exchangers. Adjustable first and second heat-source-side flow rate adjusting valves are connected to liquid sides of the first and second heat-source-side heat exchangers, respectively. In a defrost operation in order to defrost the first and second heat-source-side heat exchangers, the opening degrees of the first and second heat-source-side flow rate adjusting valves are controlled so as to achieve a defrost flow rate ratio at which more refrigerant flows to the second heat-source-side heat exchanger than during an air-cooling operation.

Abstract: A method and a device for controlling refrigerant distribution of a multi-split air-conditioning system are disclosed in the present disclosure. The method includes: when the system enters a main heating mode, controlling the second electronic expansion valve to close; controlling an electronic expansion valve corresponding to a cooling indoor unit to perform an opening adjustment; when an opening of the electronic expansion valve corresponding to the cooling indoor unit reaches a maximum opening, calculating a target opening of the second electronic expansion valve according to a total opening and the maximum opening of the electronic expansion valve corresponding to the cooling indoor unit; and controlling the second electronic expansion valve according to the target opening. With the method, the cooling effect of the cooling indoor unit is ensured and the liquid strike on the compressor may be avoided under the main heating mode.

Abstract: A system for molding and forming ice. The ice mold system for forming ice molds includes a mold housing, a mold column, and mold inserts. The mold column includes a tubular member configured to be inserted into the mold housing for forming a longitudinal bore in an ice mold. The mold inserts can be inserted around the mold column and between the mold housing. An annular base on the mold inserts is sized to friction fit into the base of the mold housing. When mounted into the mold housing, the mold inserts and mold column form reservoirs between the mold housing and the mold column that can receive liquid therein for forming ice molds. An annular base on the mold column in conjunction with a handle disposed on the mold column facilitates the removal of a resulting ice mold.

Abstract: The present invention relates to a refrigerator comprising an ice making unit wherein ice cubes are formed and that has an ice cube tray that is moved by being rotated, a body whereon the ice cube tray is located and that encloses the ice cube tray and more than one sealing member that extends between the side walls of the body and the ice cube tray.