Abstract: A lighting device is disclosed having a plurality of light emitting diodes disposed about the same substrate. A lens is configured with a geometry that corresponds to different sections of the substrate containing the light emitting diodes to propagate a beam of light with different characteristics through different portions of the lens.

Abstract: Provided is a lamp assembly including a lamp main body. The lamp assembly includes at least one light engine, and at least one first connector for electrically connecting the at least one light engine to a power supply and mechanically fixing the last light engine to the lamp main body. The at least one first connector is configured to separably mount the at least one light engine to the lamp main body. In addition, a method for assembling a lamp is also provided.

Abstract: A lighting element assembly and method of assembling a lighting element, including an optical element having a leg extending away from the optical element, a base, and a retention element configured to retain the leg relative to the base.

Abstract: The present disclosure discloses a light source assembly, including a light source element, a circuit board and a light source holder which are sequentially stacked. The circuit board is provided with an elastic member, and the light source element is elastically connected to the circuit board through the elastic member, the light source holder is provided with a snap-fit portion, and an entirety constituted by the light source element and the circuit board is snap-fitted at the light source holder through the snap-fit portion.

Abstract: A lighting device may include an elongated housing that defines a cavity. The lighting device may include plurality of emitter printed circuit boards configured to be received within the cavity. Each of the plurality of emitter printed circuit boards may include a plurality of emitter modules mounted thereto. Each of the plurality of emitter printed circuit boards may include a control circuit configured to control the plurality of emitter modules mounted to the respective emitter printed circuit board based on receipt of one or more messages. The lighting device may include a total internal reflection lens for each of the plurality of emitter printed circuit boards. The total internal reflection lens may be configured to diffuse light emitted by the emitter modules of the plurality of emitter printed circuit boards.

Abstract: The present disclosure provides a light fixture which comprises a compartment configured to house at least one light source and a lens movably arranged relative to the light source. The light fixture further comprises a deformable membrane having a tubular shape extending from a first end to a second end and forming an inner cavity. The first end of the membrane is attached to the lens. The second end of the membrane is attached to a sidewall of the compartment. The sidewall is extending circumferentially around the lens.

Abstract: A system for a room with a ceiling is provided. Air supply equipment forms a laminar flow of clean air around a target by supplying the clean air downward from an outlet provided in a first area of the ceiling located directly above the target. Operating light equipment illuminates a working area on the target in a shadowless manner by multiple light sources provided in a second area around the first area. Surface light emitting equipment controls a surface light emitting member provided in a third area around the second area.

Abstract: Various aspects provide for a multistage fluidized bed reactor, particularly comprising a volatilization stage and a combustion stage. The gas phases above the bed solids in the respective stages are separated by a wall. An opening (e.g., in the wall) provides for transport of the bed solids from the volatilization stage to the combustion stage. Active control of the gas pressure in the two stages may be used to control residence time. Various aspects provide for a fuel stream processing system having a pretreatment reactor, a combustion reactor, and optionally a condensation reactor. The condensation reactor receives a volatiles stream volatilized by the volatilization reactor. The combustion reactor receives a char stream resulting from the removal of the volatiles by the volatilization reactor.

Abstract: Apparatus for increasing burning efficiency including a bottom shell having a plate defining a first opening for receiving a fuel source and a side wall extending in an upward direction. The side wall has a first side wall end coupled to the plate and a second side wall end spaced from the first side wall end in the upward direction. Additionally, the apparatus includes a top shell having inner and outer walls defining a cavity for receiving the second side wall end of the side wall of the bottom shell. The inner wall has a first inner end and a second inner end and the outer wall has a first outer end and a second outer end. The first inner end is coupled to the first outer end and the second inner end is spaced from the second outer end to receive at least the second side wall end.

Abstract: A heater includes a convection section with columns and tube sheets coupled to the columns with tubes received in the tube sheets. The convection section includes a space between the tube sheets associated with corresponding pairs of columns. A structural frame is coupled to the columns and positioned in the space to slidably receive one or more catalyst support beds for loading or unloading a catalyst into the convection section through a lateral side of the convection section of the heater. The structural frame may include beams, struts, slide plates, and other frame elements that assist with supporting the catalyst support beds and enable sliding of the catalyst support beds with respect to the structural frame.

Abstract: Method for operating a gas burner appliance (10) comprising: a combustion chamber (11), an ignition device (27), a fan (14), a gas safety valve unit (19) assigned to the gas duct (16), an electric gas flow modulator (18) assigned to the gas duct (16), a sensor (21) positioned between the gas safety valve unit (19) and the gas flow modulator (18), wherein the gas burner appliance (10) is operated to determine the gas family of the gas of the gas/air mixture by the following steps: Before the gas burner appliance becomes started measuring the ambient air pressure by the sensor (21), wherein the ambient air pressure is measured when the safety valve unit (19) is closed, the gas flow modulator (18) is opened and the fan (14) is stopped.

Abstract: A fuel nozzle for a turbine engine, comprising: a flange defining at least one flange passage; a tip spaced from the flange, the tip defining at least one tip passage; a stem having a first stem end fixedly joined to the flange and a second stem end fixedly joined to the tip, the stem having a peripheral wall extending lengthwise between the first stem end and the second stem end and peripherally around a stem chamber, the tip sealing the stem chamber at the second stem end; and at least one fuel line extending at least partially inside the stem chamber and having a first line end fluidly connected to the at least one flange passage and a second line end fluidly connected to the at least one tip passage.

Abstract: In one exemplary embodiment, a combustor liner includes a first portion extending in a substantially axial direction and a second portion that extending in the substantially axial direction. A step connects the first portion and the second portion. The step is arranged at an angle to the second portion that is less than 90°. The step has a step height defined as a distance between the first portion and the second portion. The first portion, second portion, and step are formed as a unitary ceramic component. A slot extends through the step, and a ratio of a height of the slot to a height of the step is greater than 0.66.

Abstract: A gas system, such as an appliance or a building has a pressure sensor intermediate a master solenoid valve and at least one valve, wherein when the at least one valve is closed, shut or off, and the master solenoid valve is off, the pressure sensor senses pressure and if pressure drop over a given time exceeds a predetermined amount, an alarm condition is identified (indicating a leak). The master solenoid valve may be maintained shut until the leak is addressed.

Abstract: The present disclosure relates to a cooking device and a control method thereof and, more specifically, a cooking device using heat, such as an oven, and a control method thereof.

Abstract: An electric heater includes a substrate; a first plane heating element disposed on a surface of the substrate; and a second plane heating element disposed on the surface of the substrate so as to be located outside the first plane heating element. The first plane heating element includes a first pattern portion having a start point and an end point, and a pair of first electrode portions connected to the first pattern portion. The second plane heating element includes a second pattern portion that surrounds a portion of an outer circumference of the first pattern portion, has a start point and an end point, and has an opening portion at one side thereof; and a pair of second electrode portions connected to the second pattern portion.

Abstract: A cooking device including a main body; a cooking chamber inside the main body; a grill heater in an upper portion of the cooking chamber and including a plurality of straight sections arranged in parallel, and a plurality of curved sections connecting the plurality of straight sections; a camera module above the grill heater to photograph the inside of the cooking chamber; first and second lighting modules at opposite sides of the camera module above the grill heater to radiate light toward the inside of the cooking chamber, wherein portions of at least some of the straight sections and at least some of the curved sections are configured as detour sections bypassing a photographing area of the camera module and light irradiation areas of the first and the second lighting modules so that the grill heater does not interfere with the photographing area and the light irradiation areas.

Abstract: A method for operating a cooking appliance having a cooking chamber for receiving a food to be cooked, an operating device for setting an operating mode of the cooking appliance, a heating device for heating the cooking chamber, and a control device for controlling at least the heating device such that a heating program is carried out after the operating mode has been set. The method includes: determining a loading state of the cooking chamber by a monitoring device after an operating mode of the cooking appliance has been set, determination of the loading state including at least one distinction as to whether the food to be cooked is located in the cooking chamber; and as a function of the determined loading state, selecting a heating program from a plurality of stored heating programs and carrying out the selected heating program.

Abstract: A cooking apparatus including a main body; an inner case which forms a cooking chamber; a heating device configured to heat the cooking chamber; a transparent member configured as at least a portion of an upper wall of the inner case; and a camera disposed above the transparent member, wherein the camera and the transparent member are configured so that the camera is operable to capture an image, through the transparent member, of an inside of the cooking chamber, and a viewing angle (a) of the camera along a left and right direction of the main body is 80 degrees or more.

Abstract: A cooking apparatus including a main body including an inner case, a cooking chamber inside the inner case, and an electronic compartment outside the inner case. The cooking apparatus further includes an electronic compartment cooling fan configured to cool the electronic compartment, an electronic compartment duct dividing the electronic compartment into an electronic component space and an exhaust space, a camera cooling duct including a camera receiving space; a camera in the camera receiving space and configured to obtain an image of an inside of the cooking chamber, and a camera cooling fan configured to cool the camera.

Abstract: A cooking appliance includes a cooktop and a burner mounted on the cooktop. At least one coupling member is coupled to the cooktop. A grate, a griddle, or a reversible griddle is selectively coupled to the at least one coupling member and is operable between a raised position and a lowered position when the grate, the griddle, or the reversible griddle, is engaged with the coupling member.

Abstract: An accessory for an oven may include a frame configured to engage with each side of the oven during use, the frame forming a pair of side supports spaced and parallel to one another and each of the pair of side supports configured to engage with a rail of the oven on the respective side of the oven, and a pair of mesh supports spaced and parallel to one another and each of the pair of mesh supports extending between the side supports, and a mesh attached to the mesh supports and including a plurality of hinged panels configured to hinge with respect to the next panel in response to a container being placed on the mesh to allow the mesh to conform to the shape of the container.

Abstract: A split-type range hood having an optimal configuration of a smoke-collecting case includes a housing and the smoke-collecting case. The housing has an upper wall, a lower wall, and an intake port. The smoke-collecting case covers on the intake port. The smoke-collecting case has an outer box and a covering lid. The outer box is fixed to a periphery of the intake port. The covering lid is fixedly connected to a top portion of the outer box. The covering lid has an outlet port that fluidly connects the smoke-collecting case to the intake port of the housing. A height of the smoke-collecting case is between 5 cm and 7 cm.

Abstract: Trench-confirmable geothermal reservoirs with flexible reservoir bodies that can snugly abut trench walls (that may be of virgin, compacted earth) for facilitating heat exchange and flow liquid from one lower end to an opposing top end, and vice versa, depending on desired heat exchange. The direction can be reversed for summer and winter heat/cooling configurations. A series of the reservoirs may be used for appropriate heat transfer. The water volume of the reservoirs is relatively large and slow moving for good earth heat conduction. The reservoirs include first and second ports, one of which has an elongate internal tube that has a bottom that resides adjacent a bottom of the reservoir body and a series of apertures on only a lower portion of the internal tube to intake or output liquid depending on flow direction.

Abstract: A hot water supply system 400 comprises a cold water inlet 402 coupled to a valve 404 which determines the degree of flow in a first path 406 and a second path 408. The first path comprises an Energy Storage Arrangement including a heat exchanger 410 which can heat the water from the inlet. The second path includes an electrical heater 422 which can also heat water from the inlet. The two paths each include a respective flow sensor 416, 428 and the paths re-join before providing an outlet 420 from the supply system via a temperature sensor 418. A controller 430 controls the valve 404 and the electrical heater 422 in response to the sensor signals to provide hot water at a desired temperature using a suitable proportion of stored energy and electrical energy. By charging the Energy Storage Arrangement using a heat pump, an economical and responsive hot water supply system is provided.

Abstract: A system for controlling building equipment includes building equipment configured to output a resource having a measurable characteristic, a sensor configured obtain a measurement of the measurable characteristic, and a control system. The control system is configured to calculate an additional load factor based on the measurement of the measurable characteristic and a setpoint for the measurable characteristic, obtain an actual load for the building equipment, calculate an effective load based on the additional load factor and the actual load, generate load allocations for the building equipment based on the effective load, and control the building equipment to operate in accordance with the load allocations.

Abstract: A heater arrangement system for a water provision system for controlling a water supply provided to a water outlet, the water outlet being arranged to provide heated water to a user, the heater arrangement system comprising: a water heating device disposed remotely from the water outlet; and a control unit communicatively coupled to the water heating device, the control unit being configured to a) set a timer to begin counting from an initial time value, upon detection that the water outlet has been opened, and b) initiate a warning if an elapsed time of the timer has passed a first threshold time value.

Abstract: A heater arrangement system for a water provision system for controlling a water supply provided to a water outlet, the water outlet being arranged to provide heated water to a user, the heater arrangement system comprising: a water heating device disposed remotely from the water outlet; and a control unit communicatively coupled to the water heating device, the control unit being configured to: receive a request from a user to enable a reduced temperature water supply mode, which provides for heated water to be supplied to the water outlet at a first temperature for a fixed period of time and then provides for the temperature to be lowered to a second temperature once the fixed time has elapsed; and for a user for which the request has been received, upon detecting that the user has opened the water outlet, providing heated water at the first temperature for a first period of time, then reducing the temperature of the heated water from the first temperature to a second temperature lower than the first temper

Abstract: An air conditioner according to an aspect of the present disclosure includes a wall-mounted indoor unit which includes a heat exchanger, a blower, and a housing that accommodates the heat exchanger and the blower therein, and which is fixed to a wall surface, and a discharge unit which is disposed above the indoor unit outside the indoor unit, in which the housing includes a suction port that opens upward, the discharge unit includes a discharge device disposed above the suction port, at least a portion of air suctioned into the suction port passes through the discharge device, and a center of the discharge unit in a right-left direction of the indoor unit is disposed to be shifted to one side in the right-left direction with respect to a center of the indoor unit.

Abstract: An air-conditioning apparatus includes an irradiation device including an LED configured to emit an ultraviolet ray; and includes a heat-dissipating unit configured to dissipate heat of the irradiation device into air.

Abstract: An electric control box includes a shell, a mounting plate, and a heat exchanger; the mounting plate and the heat exchanger are connected by screw-thread fitting of a first fastener and corresponding connecting holes, the mounting plate and the heat exchanger are located inside the shell, and the heat exchanger is located between the mounting plate and an inner bottom face of the shell; the mounting plate and the shell are connected by screw-thread fitting of a second fastener and corresponding connecting holes.

Abstract: A method and apparatus for improving production efficiency of a heating, ventilation and air conditioning system. The present invention provides a shade comprising a frame and a canopy that extends radially from the top of a condenser unit, thereby creating shade over the sides of the condenser unit and creating a separation of heated air above the shade and fresh air below. The canopy is adapted to receive the frame or to be secured to the frame. The frame may comprise a plurality of ribs which are assembled in a configuration that supports the canopy on the frame. The frame is secured to the condenser unit via a variety of securement means, including bungee cords and hooks or clips. The canopy is shaped to conform to the condenser unit to effectively shield the condenser unit from the deleterious effects of the sun on at least one or more sides.

Abstract: An air purification system including a filter assembly including a substrate including a fibrous media, and a photocatalytic material disposed on the substrate, wherein the photocatalytic material includes a first quantity of crushed nanostructures; and a photon source arranged to illuminate the photocatalytic material with optical radiation.

Abstract: An ultraviolet ray radiation apparatus includes a light emitter, a light receiver, and a protector. The light emitter emits ultraviolet light. The light receiver outputs a signal varying with an amount of light received. The protector protects the light receiver from ultraviolet light.

Abstract: A refrigerant leak detection (RLD) and/or mitigation/containment (RLM/RLC) system/method for use in heating, ventilation, and air conditioning (HVAC) systems that incorporates a plurality of temperature and/or humidity sensors (THS), alarm status indicator (ASI), and digital control processor (DCP) is disclosed. The THS are positioned within the HVAC system (condenser coils (HCC), evaporator coils (HEC), air intake fans (AIF), air supply plenums (ASP), air return plenums (ARP), and/or temperature controlled environment (TCE)) and reports THS temperature readings to the DCP via a common temperature sensor bus (TSB) and/or a wireless temperature interface (WTI). The DCP interprets THS temperature readings in a closed control loop (CCL) to dynamically determine if a refrigerant leak has occurred within the HVAC system. If a leak is detected, the DCP activates the ASI and optionally one or more refrigerant control valves (RCV) is closed to limit refrigerant leakage in the HVAC system.

Abstract: A networked heating, ventilation and air-conditioning (HVAC) system is provided. The networked HVAC system includes HVAC equipment deployed in a building and an element of HVAC equipment, which is communicatively coupled with the HVAC equipment to collect types of diagnostic information relating to the HVAC equipment. The element of HVAC equipment is normally operable in a normal mode and is selectively operable in a service mode. The normal mode is characterized in that diagnostic information is collected by the element of HVAC equipment at a first rate. The service mode is characterized in that diagnostic information is collected by the element of HVAC equipment at a second rate, which is greater than the first rate.

Abstract: A method for detecting a blockage in a filter mesh of an indoor unit includes: obtaining a first resistance difference value of the filter mesh under a preset air volume value; determining a first external static pressure value during an operation process of the indoor unit; and determining that the filter mesh is blocked based on a numerical relationship between the first external static pressure value, the preset external static pressure value, and the first resistance difference value. The blockage of the filter mesh may be determined in time during the operation process of the air conditioner.

Abstract: This invention presents an integrated air and hydronic testing, adjusting, balancing, and reporting system. Comprising essential HVAC data collection equipment, data processing software, and advanced algorithms leveraging machine learning and artificial intelligence, the system analyzes building design, energy conservation, and actual conditions against infection control requirements, contamination removal requirements, and regulatory standards. The invention's methodology gathers room condition data and applies ventilation regulations and structural attributes to assess adherence to air balance standards, breathing zone requirements, exhaust rates, energy efficiency, occupational safety, infection control, and regulatory mandates.

Abstract: An information processing device has a control unit that acquires information relating to a fluctuation of power consumed by an electrical product operating around a user, and that estimates a product consumed by the user and a consumption quantity of the product based on the information relating to the fluctuation in the power.

Abstract: An interface module configured to control a motor in an HVAC system is provided. The interface module includes a processor coupled in communication with a memory. The processor is configured to wirelessly receive configuration data from a wireless device, store the wirelessly received configuration data in the memory, determine a first operating parameter at which to operate the motor based on the configuration data and at least one signal received from a first device, and control the motor in accordance with the first operating parameter.

Abstract: An air-conditioning system includes: an air-conditioning device; and a distribution device to distribute an update program to the air-conditioning device, the distribution device being connected to the air-conditioning device via a first network. Preferably, the distribution device is configured to receive distribution of the update program from a network server connected to the distribution device via a second network. The distribution device is configured to perform protocol conversion between a communication method of the first network and a communication method of the second network.

Abstract: Systems and methods for energy optimization of an HVAC system of a building are disclosed. The method includes collecting data from field sensors, the data including damper positions of a plurality of air handling units; calculating an aggregated ventilation rate for the air handling units based on the damper positions; retrieving a predictive model that outputs a predicted state for a plurality of building zones; inputting the damper positions to the predictive model; retrieving a baseline model that outputs an expected energy cost for a reporting period; inputting the aggregated ventilation rate to the baseline model; performing batch data analytics on the predictive model to update a building model; optimizing energy use to minimize actual energy cost based on the building model, energy cost information, and the data collected from the field sensors; generating energy savings data based on the baseline model and the actual energy cost.

Abstract: The techniques disclosed herein enable utilizing a full range of setpoint values to control a mechanical system. A machine learning model is trained with states collected from the mechanical system. Some of the states may have little to no variation, limiting exploration of possible setpoint values when training the model. To enable a more thorough exploration of possible setpoint values, the states are augmented with a fluctuating delta value that is derived from a fixed setpoint value. For example, a delta outside air temperature may be computed by subtracting outside air temperature, which fluctuates, from a fixed chilled water setpoint. A method of moments computation converts delta values inferred by the model back into absolute values. The absolute values are used to compute a regression equation that is usable by the mechanical system to compute a setpoint action for a given set of input states.

Abstract: A Building Management System (BMS) may be controlled in accordance with predicted occupancy using a trained model. A model is trained by providing the model with time stamped environmental data and corresponding time stamped occupancy data pertaining to a training building, wherein the time stamped environmental data is derived from one or more environmental sensors of the training building and the corresponding time stamped occupancy data is derived from one or more occupancy sensors of the training building. Once trained, the trained model is provided with time stamped environmental data for a use building that is derived from one or more environmental sensors of the use building. Occupancy data for the use building is not required. The trained model outputs a predicted occupancy value that represents a predicted occupancy count in the use building, and the BMS of the use building is controlled based at least in part on the predicted occupancy value.

Abstract: A ventilation unit for providing forced ventilation of ambient air into an indoor space of a building is provided. The ventilation unit may be used to reduce the relative humidity of an indoor space and provide a more comfortable indoor space environment.

Abstract: An air conditioning system includes: an outdoor unit that includes a first refrigerant circuit including a compressor, and a first heat exchanger; an indoor unit in a first space and that includes a second refrigerant circuit including a second heat exchanger; a liquid side pipe and a gas side pipe each connecting the first refrigerant circuit to the second refrigerant circuit; an outdoor air treatment unit including a first auxiliary refrigerant circuit including a first auxiliary heat exchanger connected to a first branching pipe branching from the liquid side pipe, and a second branching pipe branching from the gas side pipe, and a supply fan that supplies outdoor air having passed through the first auxiliary heat exchanger to the first space; a first shutoff valve on the first branching pipe; and a second shutoff valve on the second branching pipe.

Abstract: A controller for cool and warm dual system includes a bottom housing and the top housing, a water tank is provided in the bottom housing, a heater is provided in the water tank, and a tank cover is arranged on the water tank. Accommodating slots are defined in and extend through two sidewalls of the water tank along its width direction, respectively. The accommodating slots each accommodate a cooling end heat exchanger that extends into the water tank. Outer sides of the cooling end heat exchangers are respectively provided with a cooling plate, and outer sides of the cooling plates are respectively provided with a semi-circular shaped heat sink. Opposite sides of the heat sinks away from each other each define an inclined notch therein. Cooling fans matching with the notches are arranged in the notches, respectively. The cooling fan is set obliquely, and attaches to the heat sink.

Abstract: A heating device for heating water, having a container having an inlet channel and an outlet channel, two spaced-apart plates which act as electrodes and each comprise an electrical connection for connection to an electrical voltage source for generating a current flow through the water located between the plates, wherein at least one plate is mounted movably in order to change the distance between the plates and thereby the volume provided between the plates. A water-conducting device such as a washing machine, dishwasher or hot beverage maker, includes a flow conducting system and a heating device arranged therein, as described above.

Abstract: A method of operating a water heater appliance includes activating a heating element of the water heater, whereby a volume of water in a tank of the water heater is heated and measuring electrical power drawn by the heating element of the water heater appliance while the heating element is activated to heat the volume of water. The method also includes determining a tank depletion status of the tank based on the measured electrical power drawn by the heating element. The method further includes estimating a recovery time based on the determined tank depletion status.

Abstract: The present disclosure provides a computer-implemented method of predictively preparing a water provision system installed in a building, the water provision system comprising a heat pump configured to transfer thermal energy from outside the building to a thermal energy storage medium inside the building and a control module configured to control operation of the heat pump, the control module having executing thereon a first machine learning algorithm, MLA, having previously been trained to determine a correlation between cold water usage and a subsequent heated water demand, the water provision system being configured to provide water heated by the thermal energy storage medium to an occupant of the building at one or more water outlets, the method being performed by the control module and comprising: receiving first sensor data indicating cold water usage at a first water outlet; determining whether the cold water usage at the first water outlet is correlated to a subsequent heated water demand at a second