Abstract: A nozzle device for feeding a gaseous fuel and a liquid fuel into a combustion chamber of a gas turbine assembly, includes: a nozzle main body having nozzle openings for injecting the gaseous and/or liquid fuels into the combustion chamber, a liquid fuel line for the fluidic connection between a liquid supply line system and the nozzle openings, and at least one gas fuel line for the fluidic connection between a gas supply line system and the nozzle openings. An optimized operation is achieved in that at least partly the gas fuel line is configured to be correlated with the liquid fuel line, wherein a flow cross section AiH2 of the gas fuel line is proportional to a flow cross section AiK of the liquid fuel line by a factor F, where: AiH2=F*Aik, F being 2.4-3, preferably 2.6-2.8, e.g. 2.7.

Abstract: A handle for lifting a firepit may include a frame configured to span a cavity of the firepit. The handle may include a first support brace on the frame having a projection tab configured to selectively engage a securement feature in a first surface of the firepit. The first support brace may have a first depth in the firepit. The handle may also include a second support brace on the frame configured to selectively abut against the second surface of the firepit. The second support brace may be devoid of a projection tab. The second support brace may have a second depth in the firepit, the second depth being greater than the first depth.

Abstract: A base supports a fire platform with a burner. A tabletop defines an opening with a contour matching a contour of a top rim of the fire platform and is selectively fitted to the base to create a table surface around the fire platform. A fire column selectively fits to the fire platform such that flame from the burner travels into the fire column.

Abstract: A method for operating a cooking appliance having a cooking chamber for receiving a food to be cooked, a heating device for heating the cooking chamber, a circulating device including at least one fan for circulating air in the cooking chamber, and a control device for controlling at least the circulating device, the method including: recording at least one image of the food to be cooked by an image recording device; evaluating the at least one image to determine at least one surface state of the food to be cooked; determining a spatial browning profile by comparing surface states of the food to be cooked at at least two mutually spaced positions of the food to be cooked; and controlling the circulating device as a function of the spatial browning profile.

Abstract: A cooking appliance for commercial kitchens has a fat collection device with at least one fat collection container, at least one fat extraction line, at least one suction pump and at least one fat discharge line. The fat extraction line extends from the fat collection container to the suction pump. The suction pump conveys a fat-water mixture via the fat extraction line into the fat discharge line. A cleaning device is provided which conveys water at least via the fat extraction line and the fat collection container into a cooking chamber outlet of the cooking appliance.

Abstract: A cooking appliance (100) that has a body (102) with an interior (114) for food to be cooked, and an opening (113) providing access to the interior. A door (101) attached to the body (102) to selectively open and close the opening (113), has a latch (106), and the body having a catch (202) for engaging the latch (106). The catch (202) is movable between a retracted position (238) and an extended position (236), and configurable in an engagement configuration for engaging the latch (106) and a release configuration for disengaging the latch. The body (102) having a biased member (214) to engage the catch (202) when the catch (202) is at the extended position (236). The biased member (214) is adapted to bias the catch (202) into the extended position (236) and bias the catch (202) to the release configuration.

Abstract: An oven (1000) having a body (1002) that includes a base, a ceiling, and side walls extending between the base and the ceiling, the side walls at least partly surrounding a cooking cavity (1030), the oven (1000) including: an impeller assembly (1060) mounted to a first side wall of the oven body, the impeller assembly (1060) including: an impeller (1062) that is rotatable to direct air flow within the cooking cavity (1030); a plurality of air guides (2006) that at least partially surround the impeller (1062), the air guides (2006) each defining a channel that extends generally transversely from a central axis of the impeller (1062); and a pair of heating elements (2010) located on either side of the impeller (1062), whereby air that is directed from the impeller (1062) travels transversely along the channels of the air guides (2006), across the heating elements (2010), and into the cooking cavity (1030).

Abstract: A hybrid multi-air conditioning system and a method for controlling a hybrid multi-air conditioning system are provided.

Abstract: In a heating system operation method, a heating circuit medium is conveyed through an overall heating circuit flow path and at least through one sub-flow path of the overall path. How much medium is respectively conveyed through the sub-flow paths is controlled, and the medium, in order to clean it of dirt, is routed through an overall path filter. At system start-up, all the medium is routed via the sub-flow path having optionally the at least variable flow resistances or a known and/or unchanging flow resistance, termed reference flow path, and a conveying power reference value is determined and saved. To check the filter fouling state, during system operation, all the medium is again routed through the reference flow path used on start-up, a conveying power value is determined and compared with the reference value and, beginning at a predetermined deviation, a filter fouling signal is generated.

Abstract: A laminar flow at a high air speed can be maintained, and contamination caused by operation of a device or operation of the device by a person can be suppressed as much as possible. There is provided a safety cabinet that supplies clean air into a work room from above, the cabinet including: an opening portion in a front surface of the work room; a front shutter; partition plates provided on right and left side surfaces and a back surface on an upper side of the work room; and a partition on a front upper side of the work room.

Abstract: An air-handling system is provided and includes an air-handling unit (AHU) which outputs exhaust air with relatively high CO2 content, a cooling tower, which is receptive of the exhaust air from the AHU and which is configured to cool water in the exhaust air and to output exhausted air with the relatively high CO2 content and relatively high water content, and a duct. The duct is receptive of the exhausted air from the cooling tower and includes an air-conversion element configured to convert the exhausted air into fuel and air with relatively low CO2 and water content and relatively high oxygen (O2) content. The duct is configured to direct the air into the AHU.

Abstract: Systems and methods of providing a heating, ventilation, air conditioning, and electrical power generation (HVAC-P) system are disclosed. The HVAC-P includes at least one generator, an optional battery system, and a system controller. The HVAC-P system is operable to generate and supply heating, cooling, and electrical power to a building (residential and/or commercial), camping trailer, recreational vehicle, or other habitable structure in which the HVAC-P system is installed. In the heating mode, the generator burns one or more fuels to generate and supply a heated airflow to the building, camping trailer, recreational vehicle, or other habitable structure and electrical power to the battery system, the building, the electrical grid, another generator, or a combination thereof.

Abstract: A thermally modulating roof system wherein a climate space between an existing and new roof is occupied by a phase change material assembly. The system maintains an industry standard of no more than a distance of about 4 inches between the roofs while still incorporating a substantial capacity to modulate an otherwise rising temperature of a facility during the day. Unique methods of installing the system, utilizing it and circulating air through the system to enhance performance are detailed. The system may also be of the capacity to modulate an otherwise lowering temperature of the facility during exposure to colder environmental periods or conditions.

Abstract: Disclosed are systems and methods for conditioning air using a liquid-to-air membrane energy exchanger (LAMEE) as a pre-dryer, in combination with a direct evaporative cooler (DEC). The LAMEE and DEC can be arranged inside a process plenum configured to receive and condition air for delivery to an enclosed space. The LAMEE can circulate a liquid desiccant to remove moisture from the air, before passing the air through the DEC. As a result, the DEC can cool the air to lower temperatures and improve overall efficiency. In an example, a regeneration system can regenerate at least some of the liquid desiccant prior to recirculation through the LAMEE. In an example, the DEC can use removed water recovered in regeneration as make up water for the DEC. In an example, a liquid to air or liquid to liquid heat exchanger can cool the liquid desiccant, prior to recirculation through the LAMEE.

Abstract: Ventilation systems are disclosed that include a base unit having a mounting platform connecting the base unit to a surface. Such base units have a base collar that extends away from the mounting platform and forms a perimeter of a opening through the base unit. Such ventilation systems include a fan unit that has a fan housing and a fan. The fan housing is configured to receive air through an inlet and expel air through an outlet, and the fan is capable of moving air from the inlet to the outlet. Such ventilation systems also include a quick connect interface that has a base feature and a fan housing feature. The base feature is integrated into the base unit, and the fan housing feature integrated into the fan unit; both are capable of detachably connecting together to secure the fan unit to the base unit.

Abstract: A refrigerant leak management system includes a return inlet assembly and a purge exhaust outlet assembly. The system also includes a sensor configured to detect refrigerant proximate an air handling enclosure of a HVAC unit. The system further includes a controller configured to control the system to drive air from a conditioned interior space of a building into an external environment via the purge exhaust outlet assembly when the sensor detects the refrigerant proximate the air handling enclosure by: actuating the return inlet assembly to close the return inlet assembly, actuating the purge exhaust outlet assembly to open the purge exhaust outlet assembly, and activating a reversible supply fan of the HVAC unit in a reverse direction.

Abstract: An air conditioner includes a refrigerant circuit that is formed by connecting an indoor unit to an outdoor unit, where the circuit is filled with a predetermined amount of a refrigerant. The conditioner includes an obtainer that regularly acquires an operating state quantity at a time of air conditioning operation, a storage that stores therein the quantity that is acquired, a model that estimates a refrigerant remaining amount in the circuit by using the quantity, a detector that detects one of a first quantity being an operating state quantity in a state in which the circuit meets a first condition and a second quantity being an operating state quantity in a state in which the circuit meets a second condition that is different from the first condition, and a controller that estimates the remaining refrigerant amount in the circuit by using the model and the detected quantity.

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: A display system includes an acquirer, an estimator, and a controller. The acquirer acquires a first detection value and a second detection value from a temperature sensor and a humidity sensor, respectively. The temperature sensor and the humidity sensor are both included in a ventilator that ventilates a room. The estimator estimates, based on the first detection value and the second detection value that are acquired by the acquirer, a predicted mean vote distribution representing a distribution of predicted mean votes in a height direction in the room. The controller makes a display device present the predicted mean vote distribution estimated by the estimator.

Abstract: An apparatus and a method for predicting an amount of temperature change of a target zone are provided. The method includes collecting a plurality of base information, and calculating base relationship information between an indoor/outdoor temperature difference of the target zone and an amount of temperature change of the target zone on the basis of the plurality of base information. Each of the plurality of base information is information on the amount of temperature change of the target zone according to the indoor/outdoor temperature difference of the target zone during a late night time section, and the late night time section is set on the basis of at least one of activity schedule information, a sunrise time point, and a sunset time point of the target zone.

Abstract: A system for detecting, positioning, and cleaning indoor air pollution includes one or more blade blowers widely configured in an indoor space to provide an air flow, to inhale a gas, and to collect an air pollution in the gas. The blade blower transmits the air pollution to one or more first devices which is physical-typed or chemical-typed through the air flow to detect and ensure a qualitative property, a concentration, and a location of the air pollution. A blower which is nearest to the location of the air pollution is enabled through a wireless network and artificial intelligent computation to generate a directed air flow. The directed air flow transfers the air pollution to pass through one or more second devices which is physical-typed, chemical-typed, or biological-typed to clean the air pollution.

Abstract: A method for controlling an outdoor unit of an air conditioner includes: obtaining a first temperature of an environment in which the outdoor unit in a standby state is located; controlling the outdoor unit to operate for a first predetermined duration, and obtaining a second temperature of the environment in which the outdoor unit is located; reading a real-time temperature of the environment from a cloud server based on a range of a temperature difference between the second temperature and the first temperature; and controlling an operation of the outdoor unit based on a temperature difference between the real-time temperature of the environment from the cloud server and the second temperature.

Abstract: An apparatus is provided. The apparatus includes: a first substrate including first cooling means using a refrigerant that is circulated with the outside; a second substrate disposed to be in parallel with, and apart from, the first substrate and thus to form first heat accumulation space between the first and second substrates, the second substrate including second cooling means using a refrigerant that is circulated with the outside; a first fan generating a first air flow in the first heat accumulation space in a direction parallel to the first and second substrates; and a housing of a closed structure.

Abstract: A sensor mounting device (100) of the present disclosure includes: a power supply unit (110) configured to generate power that is to be supplied to the device; a sensor (120) configured to acquire information of the environment around of the device; a first control unit (130) configured to give an instruction based on the information acquired by the sensor (120); and a second control unit (150) configured to control the device in accordance with the instruction of the first control unit (130) Power to the sensor (120) and the first control unit (130) is directly supplied from the power supply unit (110). Power to the second control unit (150) is supplied from the power supply unit (110) via a switching unit (140) whose ON/OFF state is controlled by the first control unit (130).

Abstract: Systems and methods for controlling conditions in an enclosed space, such as a data center, or for providing cooling to a device, can include using a Liquid-to-Air Membrane Energy Exchanger (LAMEE) as an evaporative cooler. The LAMEE or exchanger can cool water to the outdoor air wet bulb temperature in a cooling system disposed outside of the enclosed space or device. The reduced-temperature water can be delivered to the enclosed space or device or can cool a coolant that is delivered to the enclosed space or device. The air in the enclosed space, or one or more components in the enclosed space, can be cooled by delivering the reduced-temperature water or coolant to the enclosed space, rather than moving the supply air from the enclosed space to the cooling system. In an example, the cooling system can include one or more cooling coils, upstream or downstream of the LAMEE.

Abstract: A diffuser unit having a damper compartment with a plurality of damper apertures. The damper apertures are open or closed by respective damper doors to induce a swirl to air exiting the diffuser via an air deflector which may be a diffuser with diffuser blades or a perforated plate. Alternative embodiments relate to a method of diffusing an airflow and a method of determining an airflow rate for a diffuser unit.

Abstract: The present invention relates to the field of air conditioners, and in particular to an air conditioner front panel control method and a front panel apparatus. A first air outlet and a front panel movably provided on the front end face are provided on the front end face of an air conditioner; when moving forward and backward relative to the front end face, the front panel forms, with the front end face, an air outlet channel communicated with the first air outlet, and the air outlet channel forms at least one second air outlet at the peripheral edge of the front panel. The front panel control method comprises the steps of: controlling a front panel to move and adjusting a spatial position thereof, so as to control an air inlet volume of the air outlet channel.

Abstract: A heater tank for an instantaneous water heater is provided, comprising a heater tank having a heater tank inlet, a heater tank outlet, and a fluid flow path from the heater tank inlet to the heater tank outlet. One or more electric heating elements have an electric heating element power and are operable to heat fluid flowing, in use, along the fluid flow path. One or more of the electric heating elements extend along at least a portion of the fluid flow path and are configured such that the fluid flowing, in use, along the fluid flow path experiences a reduction in a local electric heating element power as the fluid flows, in use, along the fluid flow path.

Abstract: In one non-limiting embodiment, an apparatus is provided wherein the apparatus has a shell defining an interior volume, the shell having a first flange and a second flange. The apparatus may also be configured with an end cap having a connection flange, the end cap connected to the shell at the second flange. The apparatus may also be tunable to allow different heat amounts to be generated and exposed to fluid carried in tubes within the interior volume.

Abstract: A water heater appliance and a method of configuring or reconfiguring said appliance for connection to one or more external conduits located above or below said appliance is disclosed. The water heater appliance comprises a housing at least partially defining an interior. At least one conduit is positioned within the interior and has a fixable conduit section and a movable conduit section coupled at a joint and movable relative to the fixable conduit section. The joint permits rotation of the movable conduit section about an axis of the joint while remaining coupled to the fixable conduit section. The movable conduit section is movable for being oriented or reoriented for alignment with an opening in an upwardly-facing surface of the housing, or oriented or reoriented for alignment with an opening in a downwardly-facing surface of the housing, for the water heater appliance to be configured for connection to the external conduit.

Abstract: The present disclosure discloses a control method of a heating device, which relates to a technical field of heating technique, the heating device comprising: a first water storage unit provided with a first heating mechanism; a second water storage unit communicated with the first water storage unit and provided with a second heating mechanism; and a first temperature detection device configured to measure a temperature of the second water storage unit.

Abstract: In one example, a system for collecting scale from water in a water heating appliance includes a reservoir having an interior, an inlet through which the water flows into the interior, and an outlet through which the water flows from the interior, the inlet, the outlet, and the interior defining a water pathway. A filter is positioned within the interior of the reservoir and the filter is oriented to traverse the water pathway and divide the interior of the reservoir into an upstream section into which the water flows from the inlet and a downstream section from which the water flows to the outlet. A collection chamber is configured to receive scale as the water flows along the water pathway through the interior of the reservoir and the water passes through the filter. The collection chamber is positioned in or adjacent the upstream section of the interior of the reservoir.

Abstract: A hybrid heating system for use with a gas supply and an electricity supply to provide a temperature controlled environment is provided, the hybrid heating system comprising: a hybrid heater, the hybrid heater including a firebox, a gas burner housed in the firebox and providing a first heat source, a variable pressure gas valve in fluid communication with the gas burner, a modulating actuator in mechanical communication with the variable pressure gas valve, a housing attached to the firebox, an electric element housed in the housing, the electric element providing a second heat source, a high duty cycle on off switch in electrical communication with the electric element; a printed circuit board in electrical communication with the modulating actuator and the high duty cycle on off switch; and a microprocessor which is in electronic communication with both the modulating actuator and the high duty cycle on off switch.

Abstract: A rail assembly includes a rail and an adapter. The adapter may be slidably interconnected with the rail via a first rail channel on a first rail side of the rail, and may also be slidably interconnected with the rail via a second rail channel on a second rail side of the rail. The adapter may be inverted (whether installed via the first rail channel or the second rail channel) between two different orientations that dispose a mounting flange at different elevations to accommodate two different mounting configurations.

Abstract: A refrigeration cycle apparatus includes a first refrigerant circuit and a second refrigerant circuit so as to improve the efficiency of operations. A first refrigerant circuit using a first refrigerant having a pressure of 1.2 MPa or less at 30° C. and a second refrigerant circuit using a second refrigerant having a pressure of 1.5 MPa or more at 30° C. are provided, and a dual cycle operation in which the first refrigerant circuit and the second refrigerant circuit are simultaneously operated to exchange heat between the first refrigerant and the second refrigerant and a single cycle operation in which the first refrigerant circuit is operated without operating the second refrigerant circuit to perform a cooling operation or heating operation are enabled in a switchable manner.

Abstract: A refrigeration cycle apparatus efficiently performs a cooling operation and a heating operation using a low-pressure refrigerant and a high-pressure refrigerant. A refrigeration cycle apparatus using a first refrigerant having 1 MPa or less at 30° C. and a second refrigerant having 1.5 MPa or more at 30° C. performs a heating operation by performing a two-stage refrigeration cycle including a use-side refrigeration cycle using the first refrigerant and a heat-source-side refrigeration cycle using the second refrigerant, and performs a cooling operation by performing a single-stage refrigeration cycle using the first refrigerant.

Abstract: An absorption chiller refrigerator system with an evaporator-absorber section and a generator-condenser section disposed together within a housing. The evaporator-absorber system has an evaporator section having an evaporator and an absorber disposed together within the evaporator section but separated by a perforated plate within the evaporator section. The generator condenser system has a generator section having a generator and a condenser disposed together within the generator section but separated by a perforated plate within the generator section. Perforations in the perforated plate of each of the evaporator section and the generator section are cone-shaped passages.

Abstract: A solid-state passive evaporative cooling system includes a hydrogel body, a water supply channel, a hydrogel root, and a water supply device. One end of the water supply channel is embedded into the hydrogel body, and a plurality of water outlets are formed in an outer wall of the water supply channel embedded into the hydrogel body. A water inlet at the other end of the water supply channel is connected to the water supply device which is configured to pump an aqueous solution into the water supply channel. The hydrogel root is disposed within the water supply channel. The aqueous solution is solidified by the hydrogel body to achieve the water-saving effect. During evaporative cooling, an osmotic pressure may be spontaneously created or enhanced within the system. The water supply channel is capable of adjusting the water content of the hydrogel body and providing a water supply driving force.

Abstract: An adiabatic cooling system includes a condenser coil and at least one mist chamber positioned around the condenser coil such that at least a portion of intake air for the adiabatic cooling system passes through the mist chamber prior to contacting the condenser coil. The at least one mist chamber includes a first cooling pad with a first intake-side face and a first output-side face and a second cooling pad with a first intake-side face and a first output-side face. The second-intake side face of the second cooling pad faces the first output-side face of the first cooling pad and is separated from the first-output side face of the first cooling pad by a gap. The gap includes a mist of water.

Abstract: The solar augmented chilled-water cooling system comprises a refrigeration cycle, a cooling tower, an air handling unit (AHU), a supplemental cycle and a solar energy harvesting unit. The supplemental cycle is in fluid communication with the refrigeration cycle, which is in fluid communication with the cooling tower, which in turn is in fluid communication with the supplemental cycle. The cooling tower cools a water stream by evaporation. The water stream from the cooling tower is passed to the supplemental cycle for further cooling using energy from the solar energy harvesting unit. The water stream is then passed to a condenser of the refrigeration cycle for its efficient operation at proper temperature. The water stream is then retuned back to the cooling tower to be re-cooled. In the refrigeration cycle, an evaporator uses operation of the associated condenser for providing cooling effect through the AHU.

Abstract: The present invention provides an evaporative condenser capable of ensuring cooling performance without generating pressure loss, and provides an evaporative condenser comprising: a condensation module; a water injection module for spraying; and a blowing module, wherein the condensation module has stacked N header rows, each comprising: a first header which is disposed at one side thereof and in which a flow path is formed; and a plurality of connecting tubes for connecting the flow paths of the first header and the second header between the first header and the second header, and, here, N is a natural number greater than or equal to 2.

Abstract: An evaporator for a refrigeration plant including a high-pressure chamber, a low-pressure chamber, a filter screen interposed between the high-pressure chamber and the low-pressure chamber, and a communication conduit linking the high-pressure chamber to the low-pressure chamber. The filter screen passes the working fluid in the gaseous phase from the high-pressure chamber towards the low-pressure chamber, and blocks the passage of the working fluid in the liquid phase from the high-pressure chamber towards the low-pressure chamber and vice versa. The communication conduit essentially allows the working fluid in the liquid phase to pass from the high-pressure chamber to the low-pressure chamber, and opposes a free passage of the working fluid in the gaseous phase from the high-pressure chamber to the low-pressure chamber and vice versa.

Abstract: A combination water heating, air conditioning refrigerant system is described. The combined system includes a plurality of independently adjustable electronic expansion valves. The expansion valves can independently modulate the delivery of high-temperature, high-pressure refrigerant to either a water heat exchanger or an outside condenser. A controller can receive input signals, including temperature signals from one or more temperature sensors that indicate the temperature at various locations of the system. The temperature signals include one or more of water temperature signals, ambient air temperature signals, or refrigerant super heat temperatures signals. In response to the input signals, the controller can output control signals to one or more of the plurality of electronic expansion valves.

Abstract: A refrigerant flow path unit includes: a unit body that includes plates that are laminated together, and has an interior in which a refrigerant flow path is formed; a refrigerant pipe; and a first brazing filler metal that joins the unit body to the refrigerant pipe. The plates of the unit body include: a first plate that has a first opening and is disposed at an end of the unit body in a first direction in which the plates are laminated; and a second plate that has a second opening that communicates with the first opening and is disposed second from the end of the unit body in the first direction. The refrigerant pipe is inserted into the first opening and the second opening.

Abstract: Methods for improving a refrigeration systems comprising modifying the system and replacing existing refrigerant with a replacement refrigerant comprising: (1) at least about 50% by weight of R1234ze(E); (2) greater than 0% to about 11% of HFC-134a, HFC-134, HFC-227ea, HFC-125, and combinations of two or more of these; and (3) from about 4% to about 20% by weight of HFO-1336mzz(E), HFO-1224yd(Z), and combinations of these, wherein said second refrigerant: (i) has an Occupational Exposure Limit (OEL) greater than 400; (ii) is classified as class A1 by ASHRAE Standard 34; and (iii) has a GWP of about 150 or less.

Abstract: In an air conditioner, during an operation, a gas-liquid two-phase non-azeotropic mixture refrigerant enters a receiver and accumulates in the receiver in a state where a gas phase and a liquid phase are separated. For example, when the non-azeotropic mixture refrigerant includes two components, i.e., a high-boiling refrigerant and a low-boiling refrigerant, the controller may estimate the ratio (composition ratio) between the low-boiling refrigerant and the high-boiling refrigerant in each of the gas phase and the liquid phase based on the temperature and the pressure of the non-azeotropic mixture refrigerant in the receiver. Thus, the controller may estimate the composition ratio of the liquid-phase non-azeotropic mixture refrigerant flowing out of the receiver as the composition ratio of the non-azeotropic mixture refrigerant circulating in the refrigerant circuit.

Abstract: A heat source unit connected to a utilization unit includes a compressor, a first heat exchanger, a first expansion valve, and a receiver. The heat source unit further includes a first cooler and a second cooler. The first cooler cools a primary refrigerant flowing from the receiver toward the utilization unit. The second cooler cools the primary refrigerant flowing from the first heat exchanger functioning as a radiator toward the first expansion valve, using a coolant other than outdoor air.

Abstract: A method for controlling power to a condenser fan of a transport refrigeration unit (TRU) includes disconnecting power to the condenser fan; detecting a fan voltage produced by back emf of the condenser fan; obtaining an input volume flow rate corresponding to airflow over a condenser in response to the fan voltage; comparing the input volume flow rate to a lower limit volume flow rate; disconnecting power to the condenser fan when the input volume flow rate is greater than the lower limit volume flow rate.

Abstract: A device for producing an elongate ingot of clear ice comprises a housing comprising at least one flume surface wall that defines at least one elongate trough; at least one fluid intake disposed to provide a flow of liquid into the at least one elongate trough; at least one drain disposed to drain liquid from at least one elongate trough; wherein the at least a portion of the at least one flume surface wall is in thermal communication with a cooling source; and wherein the at least one fluid intake and the at least one drain are adapted to provide a constant flow of fluid to the at least one elongate trough during a freezing operation of the device. The cooling source can be an internal cooling cavity.

Abstract: An ice maker includes a water system that delivers water from a water reservoir to an ice formation device. A mount can hold one or both of a fitting of a water level sensor and a water pump in relation to the water reservoir. For example, the mount can include integral features that lock with the fitting to mount the fitting on the ice maker at a sensing position. The mount can include integral features that form a bayonet connection with a portion of the pump. A vertical support wall can included integrated features for supporting the mount in relation to the water reservoir.