Abstract: A liner panel for use in a combustor of a gas turbine engine, including a multiple of heat transfer ribs located in at least one discrete area of the liner panel. A wall assembly within a gas turbine engine including a support shell, a liner panel mounted to the support shell via a multiple of studs and a multiple of heat transfer ribs located in at least one discrete area on a cold side of the liner panel, each of the multiple of heat transfer ribs account for the multiple of studs.

Abstract: A combustor assembly for a turbine engine includes a liner panel defining a portion of an inner surface of a combustor chamber, liner panel including an end face transverse the inner surface, and at least one diffuser through the end face. A liner panel and a method are also disclosed.

Abstract: A joined structure includes a joint section in which a plurality of tubular bodies formed of a ceramic-based composite material are joined to each other such that end surfaces of the tubular bodies abut each other via an intermediate material. The joint section is configured such that each of the end surfaces of the joined tubular bodies is inclined from one of an inner surface and an outer surface of the tubular body toward the other.

Abstract: Embodiments provide a combustion structure that can achieve stable combustion by addressing the aforementioned drawbacks in the prior art such as low flame stability, backfire, deflagration, blockage and/or any other drawbacks. The combustion chamber structure in accordance with the disclosure can include: a grate structure including a first set of elongated components, a fire retention structure including a second set of elongated components. The first set of first elongated components can be arranged along an axial direction within the combustion chamber structure. The second set of elongated components can be arranged along the axial direction in a same direction as the first elongated components. The second set of elongated components can be configured to generate a negative pressure zone within the combustion chamber. The first set of elongated components can form apertures that can be aligned with apertures formed by the second set of elongated components.

Abstract: A portable grilling device may include grill grate pieces being in an interlocking arrangement to define a grilling surface. Each grill grate piece may have first and second opposing arms, and a medial portion between the first and second opposing arms. A distal portion of the first opposing arm defines a recess, and a distal portion of the second opposing arm includes a tab portion extending outward therefrom. Respective recesses are configured to receive respective tab portions from adjacent grill grate pieces to define the interlocking arrangement.

Abstract: An apparatus and method for restricting the rotation of a dial control knob on the high setting of an electric cooking range using one of three methods. The first method adds a detent stop internally to the switch. The second method adds a detent stop externally attaching to the control panel behind the top burner knob. Both of the aforementioned methods are designed to prevent rotation of the control knob to a maximum of 227° rotation. A third limits the on/off cycling of the top element switch while in operation to reduce the overall output of the switch.

Abstract: The present disclosure relates a shelf support device and a cooking appliance with the same. The shelf support device includes a rail extending in forward and backward directions to locate a front end portion over a rear end portion, including an upper surface portion and a lower surface portion; and a support unit at which a shelf is mounted at an upper portion of the support unit, coupled to the rail to be movable along the movement path formed by each of the upper surface portion and the lower surface portion, and configured to change a position of the shelf in an upward direction when being moved in the forward direction and the position of the shelf in a downward direction when being moved in the backward direction.

Abstract: A method for manufacturing an oven includes a) providing the muffle defining a cooking chamber (5); b) providing a channelling (10) for conveying air; c) associating to a rear wall (5c) of the muffle (5) a first fan (30) for ventilation of the cooking chamber; d) associating to the channelling (10) a second fan (20) for forcing air into the channelling (10); e) associating the channelling (10) to an upper wall (5a) of the muffle (5). Step b) comprises shearing from a semi-finished product of a metal component (10a) of the channelling (10) a corresponding portion (40), so as to define an opening (23) for installation of the second fan (20). Step c) comprises using the portion (40) sheared from the semi-finished product of the metal component (10a) of the channelling (10) as a bracket for fixing the first fan (30) to the rear wall (5c) of the muffle (5).

Abstract: A circulating hot water system has a hot water flow circuit defined by pipework leading out from and back to an in-line heater, and including a pump to drive circulation of the hot water. Each of multiple user points has an outflow branch conduit and a return flow branch conduit with a common wall for heat exchange, as does the main flow circuit: the outflow conduit surrounds the return conduit. Water is fed into the system from a pressurized cold water supply main through a check valve. Sensors are used to monitor water temperatures and flow conditions around the system. A programmed control processor can control heating and pumping rates in various regimes, e.g. to maintain system temperature above a predetermined threshold. An isolation valve adapted for concentric double pipes is also described.

Abstract: Disclosed is a method for detecting domestic hot water use by a sanitary fitting during an observation period by analysing data relative to volumes of water passing through a water meter, the method including: receiving a first item of data, noted V?1, representing the maximum volume of fluid measured over a predetermined period, preferably equal to 5 minutes; receiving a second item of data, noted V?2, representing the maximum volume of fluid measured by the meter during another predetermined period, preferably equal to 15 minutes; and detecting that domestic hot water has been used when V?1>15 litres and V?2?20 litres.

Abstract: An air-conditioner having a compressor, and a condenser. The air conditioner has a desuperheater provided in a flow path from the compressor to the condenser.

Abstract: An air-conditioning apparatus includes a refrigerant circuit in which a compressor, a first heat exchanger, an expansion unit, a second heat exchanger, and a first cooling unit having a refrigerant path are connected to each other by a pipe and through which refrigerant flows, a controller configured to control operation of the compressor and having a heat-generating element, a heat transfer element having a proximal end connected to the heat-generating element and a distal end connected to the first cooling unit, and conveying heat generated by the heat-generating element, and a second cooling unit connected between the proximal end and the distal end of the heat transfer element and cooling the heat transfer element, and the first cooling unit cools the heat transfer element using the refrigerant.

Abstract: Disclosed herein is a dehumidifier having a structure improved to detect whether a water container is installed on a main body and the water container is full with water. A dehumidifier comprising a main body including a suction port and a discharge port, a heat exchanger in which a refrigerant configured to exchange heat with air introduced through the suction port circulates, a water container separably installed on the main body and configured to store condensate generated in a process in which the air introduced through the suction port exchanges heat with the refrigerant and a sensor module provided in the main body to detect whether the water container is installed on the main body and detect a water level of the water container.

Abstract: A ventilating air conditioning apparatus has energy efficiency without energy loss associated with ventilation, has high space, saves space, and is low cost. The ventilating air conditioning apparatus has a honeycomb rotor having a function of adsorbing or absorbing contaminants such as carbon dioxide. The honeycomb rotor is disposed in a rotor rotating device having at least a process zone and a desorption regeneration zone. The processed air is passed through the process zone to remove contaminants such as carbon dioxide and the air is supplied. Saturated steam is introduced into the regeneration desorption zone to desorb contaminants such as carbon dioxide and is discharged to outdoors.

Abstract: An apparatus and kit for capturing airflow from an inlet of a centrifugal fan, the centrifugal fan having a housing containing an impeller rotatable about a fan axis and an inlet passing through the housing along the centrifugal fan axis, the apparatus comprising a frame securable to the centrifugal fan housing across the centrifugal fan inlet and a capture fan rotatably supported by the frame, the capture fan having a center of rotation about the centrifugal fan axis. The apparatus further comprises an electrical generator motor operably connected to and drive by rotation of the capture fan, wherein the capture fan is rotatable in a first direction about the centrifugal fan axis by air drawn into the centrifugal fan inlet during operation of the centrifugal fan. The kit further comprises a centrifugal fan.

Abstract: Humidifiers can include a liquid tank removably attachable to a base portion. The liquid tank can include an upper connector configured to engage a lower connector of the base portion when the liquid tank and the base portion are attached. The liquid tank can include a touch interface configured to receive a touch input from outside of the liquid tank and a liquid level sensor configured to output a signal representative of a level of liquid in the liquid tank. The base portion can include a controller that is in electrical communication with the liquid level sensor and the touch interface when the upper connector engages the lower connector. The controller can be configured to adjust operation of the humidifier based on signals received from the touch interface and can receive signals from the liquid level sensor representative of the amount of liquid in the liquid tank.

Abstract: Techniques for operating and controlling humidifiers are disclosed. A system may include a cloud-based application, a humidifier including a tank to hold liquid to be atomized by the humidifier, a transducer to atomize liquid, a fan, at least one sensor, a network adapter, and a processor. The processor is operable to receive sensor data from the at least one sensor and transmit, to the cloud-based application via the network adapter, the received data. The system may a computing device that presents, via a display of the computing device, a user interface to interact with the humidifier via the cloud-based application.

Abstract: The present invention relates a control system and method for supplying droplets within a space for controlling humidity. The control system comprises a droplet generator and a control unit. The droplet generator comprises at least one outlet and is configured to supply droplets to the space. The control unit is configured to control ejection of the droplets from the droplet generator to control the humidity in the space.

Abstract: A cooperative extremum-seeking control system includes a first controller and a second controller. The first controller is configured to provide a first control input to a first plant and receive a first performance variable as feedback from the first plant. The second controller is configured to provide a second control input to a second plant that interacts with the first plant, receive a second performance variable as feedback from the second plant, and provide the second performance variable to the first controller. The first controller is further configured to aggregate the first performance variable and the second performance variable to determine a total performance variable, calculate a gradient of the total performance variable with respect to the first control input, generate a third control input using the gradient of the total performance variable, and provide the third control input to the first plant.

Abstract: A system and method including, for each component of a system, defining filter flags that identify measurements that correspond to a particular operating condition of the respective component, the identified measurements being sensor measurements relevant to build a predictive model of expected output for each component of the system; defining input sensors for each of the components; defining at least one output sensor for each of the components; filtering data from the system based on the defined filter flags for each respective component; building, based on the defined input sensors for each respective component, a predictive model for the defined output sensor; determining a divergence between actual data values and expected values predicted by the model for each respective component; determining a component-specific anomaly score for each component of the system; and storing a record of the component-specific anomaly score for each component of the system.

Abstract: The present invention relates to a system (40) for air filter management, the system comprising a plurality of air filter devices (41a,b) and an air filter control station (42). Each air filter device (41a,b) is provided at an air filter arrangement in an air flow inlet to an industrial installation and comprises at least one filter medium capable of removing particulate material and/or airborne molecular contamination, AMC, from an air flow received at the air flow inlet. Each air filter device comprises a set of sensors arranged to gather sensor data representative of an operating state of the air filter arrangement, a microprocessor and a communication unit. The air filter control station (42) comprises communication unit arranged to receive operating state information from the plurality of air filter devices and a user interface for selecting an air filter arrangement of an air filter device.

Abstract: An air conditioning system includes a plurality of air conditioning indoor units installed in a target space, a plurality of remote control devices corresponding to the air conditioning indoor units, and a controller. The remote control device has a command input to set the corresponding air conditioning indoor unit or the remote control device. The controller performs a process based on the command input to the remote control device. Each remote control device includes a communicating unit that performs a communication with the corresponding air conditioning indoor unit, and a short range wireless communicating unit that performs a short range wireless communication with a communicating apparatus having a function of the short range wireless communication. The command is input by receiving a signal transmitted from the communicating apparatus by the short range wireless communication, at the short range wireless communicating unit.

Abstract: Systems and methods for characterization of retrofit opportunities are described. Some embodiments are directed to methods for determining the air leakage rate of a building, and accordingly, for determining suitability of sealing of air leaks to improve the energy efficiency of a building. The methods may comprise computing, using at least one computing device disposed remote from a building and based at least in part on heating, ventilation and air conditioning (HVAC) runtime data associated with the building, one or more thermal characteristics of the building. The HVAC runtime data may be computed based on data received from a thermostat or a meter, such as an electric or a gas meter. To isolate the impact of air leakage, subsets of the HVAC runtime data at time intervals selected to have substantially the same conditions, but different wind speeds, may be computed.

Abstract: There is provision of an operation support system for supporting an operation of a demand-supply system including a resource supplying facility and a resource demander facility. The operation support system receives an input of a demand-supply system model of the demand-supply system, facility-capacity information of the resource supplying facility, and analysis condition information defining a plurality of variables and an external variable of the demand-supply system, to generate a correlation logical formula representing a relation among the plurality of variables and the external variable.

Abstract: A draft perceived by a user under an indoor unit is reduced. A controller makes each of a plurality of indoor units perform a partial supply operation. In the partial supply operation, the controller controls an airflow blocking mechanism such that, regarding the indoor units adjacent to each other with a predetermined distance a interposed therebetween, no air current is blown from one of the outlet openings which face each other with the predetermined distance a interposed therebetween.

Abstract: Humidifier and related method embodiments are disclosed herein. A humidifier includes a liquid tank, a reservoir, a liquid atomizer, a valve, and a controller. The liquid tank defines a first interior volume, the reservoir is in liquid communication with the first interior volume, and the liquid atomizer is located in the reservoir. The valve is configured to actuate between a closed position and an opened position. The closed position prevents liquid communication between the first interior volume and the reservoir. The opened position allows liquid communication between the first interior volume and the reservoir. The controller is coupled to the valve and configured to selectively actuate the valve between the closed position and the opened position.

Abstract: An air conditioner has a casing and a wind direction changing device. The casing has an air inlet, an air outlet, an outer air path wall, and an inner air path wall. The wind direction changing device has an up-down rotation shaft and a deflector. The deflector extends from the up-down rotation shaft toward the outer air path wall. The deflector has an outer air path wall-side end which faces the outer air path wall and has a first arc shape.

Abstract: Humidifier and related method embodiments and disclosed herein. A humidifier includes a base, a fluid column, a liquid tank, a lid, and a sealing assembly. The base has a liquid reservoir and is configured to generate mist. The fluid column is in fluid communication with the liquid reservoir and selectively in fluid communication with an ambient atmosphere to deliver mist to the ambient atmosphere. The liquid tank is coupled to the base and defines an interior volume. The liquid tank is configured to provide liquid to the liquid reservoir. The lid is selectively sealed to the fluid column and covers the liquid tank. The sealing assembly is coupled to the fluid column. The sealing assembly is configured, upon actuation, to both seal the fluid column from the ambient atmosphere to prevent delivery of mist to the ambient atmosphere and unseal the lid from the fluid column.

Abstract: An indoor unit includes a main body unit including a housing having an opening hole for pipe formed on a part of a side surface of the main body unit, a refrigerant pipe connection part projecting from inside to outside of the housing through the opening hole for pipe, and an attachment plate holding and fixing the refrigerant pipe connection part together with the housing to close the opening hole for pipe. The opening hole for pipe is formed over a first side surface on a side of the housing from which the refrigerant pipe connection part projects and a second side surface adjacent to the first side surface, and the attachment plate has an L shape including planes corresponding to the opening hole for pipe over the first side surface and the second side surface.

Abstract: In order to enable a drain pan to be visually checked for contamination without requiring a complicated operation, the present invention is configured so as to be equipped with: a housing; a drain pan provided inside the housing; a drain pump for pumping up drain water accumulated in the drain pan; an opening provided in a side surface of the housing; and a cover member attached to the opening and covering the opening. When the cover member is detached from the opening at least a portion of the drain pan can be viewed from the opening.

Abstract: An air conditioner, including: a housing (10) having an air inlet (11) and an air outlet (12); a centrifugal fan (20) rotatably disposed in the housing (10), the centrifugal fan (20) including a plate portion (21) and blades (22) disposed on the plate portion (21); a heat exchanger (30), the heat exchanger (30) being disposed in the housing (10); and a slidable support portion (40) disposed in the housing (10) to support the centrifugal fan (20).

Abstract: A wall mount bracket for HVAC Equipment such as a heat pump, AC condensing unit, and preferably the exterior condenser unit of a mini split system. The system can advantageously be used in colder climates to prevent equipment from freezing and keep equipment above the level of the snow, etc. The wall mounts herein employ an offset to space the unit away from the wall of the structure to provide clearance on the rear of the unit. The offset also allows the units to be mounted above the top of the foundation wall without disrupting the exterior siding of the structure.

Abstract: A scalable pulse combustor that can be deployed as the heat exchanger in high efficiency, low NOx condensing boilers, water heaters and steam generators is provided. The combustor generally comprises an annular burner coil with a burner flange for accommodating the nozzle of a conventional burner/blower fitted into the central aperture thereof; a spaced-apart opposite annular spreader coil with a heat exchange hub fitted into the central aperture thereof; and a plurality of annular intermediate coils. Each of the burner, spreader and intermediate coils are preferably formed of spiral wound stainless steel tubing, with each winding directly abutting the preceding winding so as to create an annular wall. The heat exchange hub functions as a secondary heat exchanger with its own independently controllable coolant flow.

Abstract: A water heater system includes a primary heat exchanger including a tank and at least one flue, and a secondary heat exchanger including a core and a flue gas flow path. The water heater is operable in a heating mode in which a combustor produces hot flue gas and a water pump flows water through the core of the secondary heat exchanger and into the tank, and in a non-heating mode in which the combustor and the water pump are inoperative. The flue gas flows from the combustor through the at least one flue to heat the water in the tank and then through the flue gas flow path to heat water in the core before being exhausted.

Abstract: A heater includes a housing extending longitudinally between a rear intake end and a front discharge end, a support attached to a lower portion of the housing, and a cylindrical combustion chamber secured within the housing. A control unit is disposed within the support adjacent to the combustion chamber. A heater control panel is disposed on the support and electrically connected to the control unit, the heater control panel including an ignition switch for selective operation of the control unit to power an igniter. An electrical conductor is electrically connected to the control unit, wherein the support is configured to retain a battery for connection with the electrical conductor, to power the control unit. A plug is connected to the support and electrically connected to the control unit by a rectifier to convert AC power from an external power source to DC power to supply to the control unit.

Abstract: An enclosure for a water heater can include a cover having at least one body coupling feature and at least one first water heater coupling feature. The enclosure can also include a body detachably coupled to the cover, where the body includes at least one cover coupling feature that couples to the at least one body coupling feature of the cover. The at least one water heater coupling feature can be configured to receive an enclosure coupling feature of the water heater, where the enclosure coupling feature, when received by the at least one water heater coupling feature, secures the body against a tank of the water heater.

Abstract: A water heater has a water supply line, a heat exchanger in fluid communication with the water supply line, a heating element positioned proximate to the heat exchanger, such that when activated, the heating element conveys heat to the heat exchanger and thereby heating water supplied by the water supply line, an output line in fluid communication with the heat exchanger and configured to receive heated water therefrom, a flow sensor configured to cause the heating element to activate in response to sensing a predetermined water flow rate through the water heater, and a bypass flow line operably connected between the water supply line and the output line.

Abstract: A method for constructing a solar heat collector comprises applying a bit array to a sheet of reflective material to create a sheet of solar reflectors, each bit in the bit array creating a solar reflector having a known focal point; and mating the sheet of solar reflectors to a heat absorbing layer such that at least a portion of the heat absorbing layer passes through a focal point of at least some of the solar reflectors.

Abstract: A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube, through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube has a multilayer structure in which an Ag layer, having dispersed therein at least one metal selected from the group consisting of Mo, W, Ta, Nb and Al, is sandwiched between two metal protective layers.

Abstract: A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube is an Ag layer having Nb dispersed therein, the content of Nb being 0.1 at % to 31.8 at %.

Abstract: A refrigeration apparatus has a refrigerant circuit formed by connecting a compressor, a condenser, an expansion valve, and an evaporator by a refrigerant pipe. The refrigeration apparatus includes a temperature duration time measuring unit, and a target evaporation temperature calculating unit. The temperature duration time measuring unit measures a high-temperature duration time in a thermo-off state, the high-temperature duration time being time during which the temperature of the interior of a to-be-cooled space is higher than a lowering threshold which is set with reference to a target interior temperature. The target evaporation temperature calculating unit updates the target evaporation temperature by decreasing the target evaporation temperature by a set subtraction coefficient, after the high-temperature duration time becomes greater than or equal to an update reference time.

Abstract: The present invention makes it possible in a centrifugal chiller utilizing a low pressure refrigerant used at a maximum pressure of less than 0.2 MPaG to effectively extract, in high concentration, non-condensible gas that has mixed into the low pressure refrigerant, and thus suppresses reductions in condensing efficiency. This condenser (3) is equipped with: a shell vessel (21) into which a low pressure refrigerant used at a maximum pressure of less than 0.

Abstract: An ejector includes a body including an inflow space into which a refrigerant flows, a passage formation member disposed inside the body and having a conical shape, and a nozzle passage having an annular cross section functioning as a nozzle and a diffuser passage having an annular cross section functioning as a pressurizing portion between an inner wall surface of the body and a conical lateral surface of the passage formation member. A drive mechanism that displaces the passage formation member along a center axis is coupled to an upstream actuating bar which extends from the passage formation member toward the inflow space and is slidably supported by the body. A largest outer diameter portion of an annular member forming a wall surface of the nozzle passage provides a throat portion functioning as an edge for enlarging a passage cross-sectional area to cause a separation vortex in the refrigerant.

Abstract: A system includes a high side heat exchanger, a flash tank, a first load, a second load, and a thermal storage tank. The high side heat exchanger is configured to remove heat from a refrigerant. The flash tank is configured to store the refrigerant from the high side heat exchanger and discharge a flash gas. The first load is configured to use the refrigerant from the flash tank to remove heat from a first space proximate to the first load. The second load is configured to use the refrigerant from the flash tank to remove heat from a second space proximate to the second load. The thermal storage tank is configured, when a power outage is determined to be occurring, to receive the flash gas from the flash tank, and remove heat from the flash gas.

Abstract: A cryogenic apparatus (10) comprises: an enclosure (12); a thermo-mechanical cooler (22) and a sample tube (20) that both project into the enclosure (12), where the sample tube (20) has a closed end; a pump (92) with a pump inlet and a pump outlet, and a duct to supply helium gas from the pump outlet to the thermo-mechanical cooler (22) to produce cold helium. The sample tube (20) has a first inlet (74) to allow a fluid into the sample tube (20), and a second inlet (83) to supply fluid to a thermal element (42) in thermal contact with the sample tube (20), and also has a first outlet (26) to withdraw fluid from within the sample tube (20), and a second outlet (28) to withdraw fluid from the thermal element (42).

Abstract: A heat exchange structure of heat dissipation device includes a main body and a thermoelectric cooling chip. The main body has at least one first space in communication with at least one first opening and at least one second opening. The first space has an open side and a cooling fluid therein. The thermoelectric cooling chip has a cold face to contact with at least one heat source and a hot face to mate with the open side of the main body. In the present invention, the thermoelectric cooling chip is directly used instead of the metal-made heat conduction substrate of the conventional water-cooling heat dissipation device and serves to directly actively cool the heat source. The heat of the hot face of the thermoelectric cooling chip is absorbed by the cooling fluid inside the main body to dissipate. Accordingly, the heat dissipation performance is enhanced as a whole.

Abstract: A heat-exchange structure for water cooling device includes a main body and a first thermoelectric cooling chip. The main body internally defines at least one first space communicably connected to at least one first port and at least one second port; and the first space has a first open side and allows a cooling fluid to flow therethrough. The first thermoelectric cooling chip has a first cold side and a first hot side, and is connected to the main body with the first cold side facing toward and closing the first open side of the main body. The cooling fluid in the first space of the main body is directly cooled by the first thermoelectric cooling chip, so that the cooling fluid of the water cooling device can be cooled at a further upgraded cooling efficiency.

Abstract: A compressor may include a shell assembly, a compression mechanism and a conduit. The shell assembly may include a fitting through which fluid is received from outside of the compressor. The compression mechanism may be disposed within a chamber defined by the shell assembly. The conduit may extend through the chamber between the fitting and a suction inlet of the compression mechanism and transmit at least a portion of the fluid from the fitting to the suction inlet.

Abstract: A compressor may include a shell assembly, a compression mechanism and a conduit. The shell assembly may include a fitting through which fluid is received from outside of the compressor. The compression mechanism may be disposed within a chamber defined by the shell assembly. The conduit may extend through the chamber between the fitting and a suction inlet of the compression mechanism and transmit at least a portion of the fluid from the fitting to the suction inlet. The conduit may include an inlet that may be spaced apart from the fitting and an outlet that may engage the compression mechanism.

Abstract: A liquid accumulator for a heat exchange system, includes a liquid accumulator housing provided with an air inlet, an air outlet, and a liquid inlet; and a cooling heat exchanger disposed in the liquid accumulator housing, wherein the cooling heat exchanger comprises an inlet end, a main body part, and an outlet end in sequence; the inlet end of the cooling heat exchanger is connected to the air inlet on the liquid accumulator housing; and the outlet end of the cooling heat exchanger is arranged to be higher than a working liquid level of a refrigerant in the liquid accumulator.