Abstract: A method of controlling a transport climate control system includes detecting for leaking of working fluid from a climate control circuit. The method also includes isolating a high-pressure side of the climate control circuit when leaking of the working fluid is detected. A method of controlling a transport climate control circuit includes detecting for overcharge and/or an undercharge of the climate control circuit. A transport climate control system includes a climate control circuit and a climate controller that is configured to detect for working fluid leaking from the climate control circuit. The climate controller configured to isolate a high-pressure side of the climate control circuit when leaking of the working fluid is detected.

Abstract: A method for controlling a power system that powers a load is provided. The power system includes a prime mover, an electrical machine coupled to the prime mover, a battery source, an inverter coupled to the battery source, and a power system controller configured to control operation of the power system. The method includes monitoring a power demand on the power system from the load. The method also includes comparing the monitored power demand with a load threshold value. Also, the method includes determining that the monitored power demand is less than the load threshold value. Further, the method includes upon determining that the monitored power demand is less than the load threshold value: inactivating the prime mover, and instructing the battery source with the inverter to supply power to the load.

Abstract: A container assembly has a soft-sided insulated wall structure. It has one or more internal chambers in which to place objects to be kept cool or warm. A first closure member governs access to the container assembly. The wall structure includes one or more accommodations in which to place a warming or cooling element, such as an ice pack. The accommodations in the outside walls are externally accessible without opening the main chamber, and have their own closure, and may be insulated. The inside is a thin web through which to transfer heat. An internal partition divides the container assembly into two chambers. The partition may have a thermal storage element. The container may be a collapsible foldable bag; a tote bag; back pack or a non-collapsible lunch box. The thermal storage elements may have a flat disk shape. The disks slide sideways into place in the respective accommodations.

Abstract: An air conditioner unit includes a refrigeration loop, a variable speed compressor urging refrigerant through the refrigeration loop, a temperature sensor to detect a temperature within a room, and a controller operably coupled to the variable speed compressor. The controller is configured to initiate the compressor at a fixed speed, determine an estimated target temperature of the room, determine an actual temperature of the room, generate a target compressor speed, and initiate the compressor at the target speed.

Abstract: An air conditioning system may include an outdoor unit including a compressor; at least one distributor connected to the outdoor unit and including a condenser and an evaporator that exchange heat between refrigerant and water; a plurality of heating pipes in communication with the condenser; a plurality of cooling pipes in communication with the evaporator; a plurality of fan coil units connected to the plurality of heating pipes or the plurality of cooling pipes; and a controller configured to perform a heating pipe search operation for matching a portion of the plurality of fan coil units with the plurality of heating pipes, and a cooling pipe search operation for matching another portion of the plurality of fan coil units with the plurality of cooling pipes, in parallel.

Abstract: A gas detector is provided and includes a gas detector element, electronics to interface with the gas detector element and an enclosure configured to expose the gas detector element to an exterior and to form an electronics housing area in which the electronics are disposed whereby the electronics are isolated from the exterior.

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

Abstract: A chiller assembly is provided. The chiller assembly includes a compressor (102), a condenser (106), an expansion device and an evaporator (108) connected in a closed refrigerant circuit. The chiller assembly further includes a motor (104) connected to the compressor to power the compressor, and a variable speed drive (110) connected to the motor to power the motor. The variable speed drive is operable to provide a variable voltage to the motor and a variable frequency to power the motor. The variable speed drive includes multiple sensors and an input current estimator that determines an estimated RMS input current based on sensor data received from the sensors. The chiller assembly further includes a control panel to control operation of the variable speed drive.

Abstract: An HVAC system includes an unloading device, a centrifugal compressor, a gas foil bearing, a VFD and a controller. The controller is programmed to start the centrifugal compressor from a stopped condition by operating the unloading device to remove a load from the centrifugal compressor, accelerating the motor to a first speed above a liftoff speed of the gas foil bearing and below an operating speed of the centrifugal compressor, running the motor for a period of time, operating the unloading device to apply the load to the centrifugal compressor, and accelerating the motor to the operating speed.

Abstract: A vector control system is used to control a vapor compression circuit. The vector control system may monitor the vapor compression circuit and adjust the speed of one or more motors to increase efficiency of the system by taking into account the torque forces placed on a compressor motor.

Abstract: When a controller receives an instruction for a heating operation, the controller switches an operation mode of a refrigeration cycle apparatus between a heating operation mode and an oil recovery operation mode. The heating operation mode is a mode to circulate refrigerant in a refrigerant circuit such that the refrigerant flows through a gas extension pipe in a gas phase state. The oil recovery operation mode is a mode to circulate the refrigerant in the refrigerant circuit such that the refrigerant flows in the gas extension pipe in a gas-liquid two-phase state. The direction in which the refrigerant flows in the gas extension pipe in the oil recovery operation mode is opposite to that in which the refrigerant flows in the gas extension pipe in the heating operation mode.

Abstract: Various methods and apparatuses are provided for monitoring and detecting gas leaks. A method of determining a gas leak with a sensor assembly is provided. The sensor assembly includes a primary sensing device and a reference sensing device. The method includes receiving, via the primary sensing device, a first oxygen concentration level reading of a given area. The method also includes receiving, via the reference sensing device, a second oxygen concentration level reading of the given area. The method further includes comparing the first oxygen concentration level reading and the second oxygen concentration level reading. Based on the comparison, the method still further includes causing a transmission of a signal that a gas leak is occurring in an instance in which the first oxygen concentration level reading and the second oxygen concentration level reading have a difference greater than a threshold difference. A corresponding gas detection apparatus is also provided.

Abstract: An artificial intelligent refrigerator is disclosed. The artificial intelligent refrigerator includes: one or more first temperature sensor that senses refrigerating compartment-internal temperature in a refrigerating compartment of the refrigerator; one or more second temperature sensor that senses freezing compartment-internal temperature in a freezing compartment of the refrigerator; and a refrigerator processor that calculates a load accumulation amount for food put in the refrigerator on the basis of the refrigerating compartment-internal temperature or the freezing compartment-internal temperature, and performs a load correspondence operation using the calculated load accumulation amount.

Abstract: A heat pump may include a compressor configured to compress a refrigerant, a first temperature sensor configured to detect an outdoor temperature, a second temperature sensor provided in heating pipes connected to a heating device that performs indoor heating and configured to detect a temperature of fluid flowing through the heating pipes, an outdoor heat exchanger configured to perform heat exchange between outdoor air and a refrigerant, a third temperature sensor configured to detect a temperature of the outdoor heat exchanger, and a controller. The controller may be configured to: control power to a boiler and/or to the compressor based on sensing values of the first, second, and third temperature sensors, calculate an expected efficiency of the heat pump based on the sensing value of the first temperature sensor and an initial target temperature, and control power to the boiler based on the expected efficiency.

Abstract: A refrigerator includes a cabinet, a cooling module including a compressor, a condenser, an expansion valve, and an evaporator, and attachable to or detachable from the cabinet so that the cooling module is removably mounted to the cabinet, an electronic device arranged in the cabinet, and an electrical box configured to be electrically connected to the electronic device and the compressor, receive power from outside and supply the received power to the electronic device and the compressor.

Abstract: A refrigeration device (100) having a closed circuit (C) within which a refrigerant fluid circulates and provided with a compressor and at least one shut-off valve (105) operable between an open position and a closed position to regulate the flow of refrigerant fluid through at least one evaporator depending on the temperature required by the user, the closed circuit includes at least one secondary by-pass branch (200) having an inlet section (201) and an outlet section (202) respectively arranged downstream (D) and upstream (U) of said at least one compressor (101) for the passage of said refrigerant fluid.

Abstract: A refrigerant metering system/method incorporating a manual expansion valve (MEV), condenser isolation valve (CIV), flow isolation valve (FIV), and evaporator isolation valve (EIV) is disclosed. The MEV is configured to replace a conventional automated expansion valve (AEV) that controls a refrigerant flow valve (RFV) that is positioned in a heating, ventilation, and air conditioning (HVAC) system between a refrigerant condenser coil (RCC) and a refrigerant evaporator coil (REC) and permits manual metering of refrigerant by the RFV from the RCC to the REC and also allows complete shutoff of refrigerant flow by the RFV from the RCC to the REC. The MEV allows rapid HVAC repair and restoration of service where a replacement AEV is not readily available. The CIV/FIV/EIV are positioned in the refrigerant flow lines to permit the AEV and/or REC to be isolated from HVAC refrigerant flow for repairs to the AEV and/or REC.

Abstract: A heat pump may include a compressor configured to compress a refrigerant, a first temperature sensor provided in heating pipes connected to a heating device that heats an indoor space to sense a temperature of fluid flowing through the heating pipes, and a controller. The controller may be configured to determine whether a boiler is operating to heat an indoor space or is operating to supply hot water based on a sensing value of the first temperature sensor. The compressor may operate when the controller determines that the boiler is not operating to heat the indoor space and/or determines that the boiler is operating to supply hot water.

Abstract: A refrigerator includes a cabinet that defines a storage space therein, a door configured to open and close at least a portion of the storage space, and a user detection sensor disposed at a first side of the door with respect to a center line crossing a width direction of the door and configured to detect a user. The user detection sensor is inclined with respect to a front surface of the door by a predetermined angle to thereby face toward the center line.

Abstract: The disclosure features various embodiments and aspects of containers and related systems for quenching contents of the containers.