A freezer includes a plurality of evaporators coupled to a payload bay with a multiplicity of coolant tubes in each evaporator, wherein each tube enters and then exits the payload bay, further comprising one or more cryogenic valves coupled to the coolant tubes; a pump to force coolant flowing through the evaporators; sensors coupled to the evaporators of the freezer to monitor vital parameters of the freezer; a processor; a wireless telemetry system to communicate one or more measured characteristics of the freezer in accordance with a service level agreement to a remote computer; and at least one notification component that provides a notification associated with a specific customer responsive to the measured characteristic of the service crossing a pre-defined threshold.

The subject matter of this specification can be embodied in, among other things, a method for time shifting when a cold storage facility is cooled that includes determining a thermal model of a cold storage facility, obtaining an energy cost model that describes a schedule of variable energy costs over a predetermined period of time in the future, determining an operational schedule for at least a portion of a refrigeration system based on the thermal model, the energy cost model, and a maximum allowed temperature, and powering on the portion the refrigeration system based on the operational schedule, cooling, by the powered portion of the refrigeration system to a temperature below the maximum allowed temperature, reducing power usage of the powered portion of the refrigeration system based on the operational schedule, and permitting the facility to be warmed by ambient temperatures toward the maximum allowed temperature.

The subject matter of this specification can be embodied in, among other things, a method for time shifting when a cold storage facility is cooled that includes determining a thermal model of a cold storage facility, obtaining an energy cost model that describes a schedule of variable energy costs over a predetermined period of time in the future, determining an operational schedule for at least a portion of a refrigeration system based on the thermal model, the energy cost model, and a maximum allowed temperature, and powering on the portion the refrigeration system based on the operational schedule, cooling, by the powered portion of the refrigeration system to a temperature below the maximum allowed temperature, reducing power usage of the powered portion of the refrigeration system based on the operational schedule, and permitting the facility to be warmed by ambient temperatures toward the maximum allowed temperature.

A freezer includes a plurality of evaporators coupled to a payload bay with a multiplicity of coolant tubes in each evaporator, wherein each tube enters and then exits the payload bay, further comprising one or more cryogenic valves coupled to the coolant tubes; a pump to force coolant flowing through the evaporators; sensors coupled to the evaporators of the freezer to monitor vital parameters of the freezer; a processor; a wireless telemetry system to communicate one or more measured characteristics of the freezer in accordance with a service level agreement to a remote computer; and at least one notification component that provides a notification associated with a specific customer responsive to the measured characteristic of the service crossing a pre-defined threshold.

A cooler for maintaining an internal temperature while simultaneously protecting contents stored therein from UV light may include a container body with an interior region, the interior region sized to accommodate items to be kept within a desired temperature range; a lid hingeably attached to the container body; an angled lip extending from an outer edge of the container body; and at least one holster built into the angled lip, wherein the at least one holster is sized to accommodate a vaccine gun. The cooler may also include an alerting temperature gauge configured to alert a user when the temperature in the interior region falls outside of the desired temperature range.

A refrigerator includes a plurality of storage compartments, a plurality of cooling units to cool the plurality of storage compartments, a temperature sensing unit to sense temperatures of the plurality of storage compartments, a drive unit to drive the plurality of cooling units, and a controller to control the drive unit to drive the cooling unit that satisfies a predetermined driving condition. If at least one cooling unit among the plurality of cooling units is being driven, the controller delays driving the other cooling unit even if the other cooling unit satisfies the driving condition. The refrigerator minimizes simultaneous driving a plurality of compressors, which may prevent generation of noise and vibration, as well as excessive power consumption, due to driving the plurality of compressors.

A method for operating a refrigeration system for a mobile unit includes steps of: 1) providing a refrigeration unit having a compressor, an evaporator, and at least one fan operable to move air towards the evaporator, a generator dedicated to the refrigeration unit, and a battery; 2) determining at least one environmental parameter in one or both of the mobile unit and the refrigeration unit; and 3) selectively operating the refrigeration unit in one of a plurality of modes based on the environmental parameter. The plurality of modes includes a first mode wherein at least the fan is powered by the battery, and a second mode wherein the compressor and the fan are powered by the generator.

A method and system to determine a hot cargo load condition of a cargo load in a refrigerated container includes providing a plurality of sensors disposed within the refrigerated container, operating the refrigeration unit with a set of desired operational parameters corresponding to the cargo load, analyzing a plurality of sensor readings corresponding to the plurality of sensors via a processor, creating a temperature distribution profile of the refrigerated container corresponding to the plurality of sensor readings via the processor, retrieving a historical temperature distribution profile corresponding to the cargo load via a historical database, comparing the temperature distribution profile to the historical temperature distribution profile via the processor, and identifying the hot cargo load condition in response to the temperature distribution profile exceeding the historical temperature distribution profile via the processor.

A refrigerator according to the present invention includes a storage chamber configured to store food, a cold air supply part configured to supply cold air to the storage chamber, a tray configured to form an ice making cell being a space in which water is phase-changed into ice by the cold air, a temperature sensor configured to sense the temperature of water or ice in the ice making cell, a heater configured to provide heat to the tray, and a controller configured to control the heater, in which the controller controls the heater to be turned on so that ice can be easily separated from the tray when the ice making is completed, and the controller controls the heater to be turned off when a temperature sensed by the temperature sensor reaches a first turn-off reference temperature greater than zero after a first reference time elapses in a state in which the heater is turned on.

A refrigerator according to the present invention includes a storage chamber configured to store food, a cold air supply part configured to supply cold air to the storage chamber, a tray configured to form an ice making cell being a space in which water is phase-changed into ice by the cold air, a temperature sensor configured to sense the temperature of water or ice in the ice making cell, a heater configured to provide heat to the tray, and a controller configured to control the heater, in which the controller controls the heater to be turned on so that ice can be easily separated from the tray when the ice making is completed, and the controller controls the heater to be turned off when a temperature sensed by the temperature sensor reaches a first turn-off reference temperature greater than zero after a first reference time elapses in a state in which the heater is turned on.