This disclosure relates to a method and system for fast freezing of a biological product (such as blood plasma) contained in an individual bag or a plurality of bags. This disclosure relates to a method and system for freezing plasma in an individual bag or a plurality of bags, favoring bottom-up ice-growth, by implementing a differential air flow on top and bottom surfaces of a horizontally placed bag or bags filled with plasma. This disclosure relates to a method and a differential air flow system for freezing plasma, wherein the heat transfer coefficient on a bottom of a bag is at least 10 times larger than at a top. This disclosure relates to a differential air flow system and method for freezing plasma, wherein the differential air flow on top and bottom surfaces of a plasma bag is imposed by at least one fan or blower.

Provided is a refrigerator. The refrigerator includes a cabinet including an inner case defining a storage compartment, an outer case surrounding the outside of the inner case, and an insulation material provided between the inner case and the outer case, a storage compartment door opening and closing the storage compartment, a cold air duct provided in the storage compartment and disposed in an upper side of the storage compartment to discharge cold air to the storage compartment, and a guide duct disposed outside the inner case to communicate with the cold air duct and extending to the storage compartment door to guide the cold air received from the cold air duct to the storage compartment door.

A method for controlling an operation of a refrigeration appliance includes controlling a first cooling routine for a first compartment via a flow of a thermal exchange media to a first evaporator. The method further includes controlling a heating routine in response to a setpoint temperature being greater than the temperature of the first compartment. The heating routine includes activating a heating element and a fan in the first compartment over a first interval and deactivating the heating element and the fan over a second interval. The heating routine continues by activating the first interval and the second interval over alternating time periods. In response to the temperature of the first compartment being greater than or equal to a target temperature associated with the setpoint, the method may control the operation of the appliance by returning to the cooling routine.

A refrigeration system including a storage chamber configured to store a product at a predetermined temperature. The storage chamber is defined by an inner wall. The inner wall at least partially defines an air plenum. The inner wall includes an opening wall surface, a floor surface, a rear wall surface and a ceiling wall surface. The system also includes a refrigerant circuit including a compressor, a condenser, a condenser fan, an evaporator and an evaporator fan arranged and disposed in an operable configuration to provide refrigeration to the storage chamber. The air plenum includes a conduit arranged and disposed to convey air from an air inlet across the evaporator and into a discharge chamber and out an air outlet. The air outlet is configured to discharge cooled air in a direction toward the opening wall surface.

A refrigerating appliance (100) is provided, which comprises: —at least one storage compartment (110) for storing goods to be refrigerated; —a refrigeration circuit comprising at least one evaporator (170) associated with said at least one storage compartment (110); —a control unit (172) configured to control operation of the refrigerating appliance (100); —at least one fan (171), configured to promote heat exchange between said at least one evaporator (170) and the at least one storage compartment (110), said at least one fan (171) being further configured to be switched between a first operative condition in which said at least one fan (171) is commanded to rotate, and a second operative condition in which said at least one fan (171) is commanded to not rotate; —a MEMS pressure sensor (180) configured to measure the pressure inside said at least one storage compartment (110) and in signal communication with the control unit (172) for providing a pressure signal proportional to the measure of the pressure inside said at least one storage compartment (110), wherein the control unit (172) is configured to control the operation of the refrigerating appliance (100) in function of said pressure signal received when said at least one fan (171) is in the first operative condition.

A refrigerating appliance (100) is provided, which comprises: —at least one storage compartment (110) for storing goods to be refrigerated; —a refrigeration circuit comprising at least one evaporator (170) associated with said at least one storage compartment (110); —a control unit (172) configured to control operation of the refrigerating appliance (100); —at least one fan (171), configured to promote heat exchange between said at least one evaporator (170) and the at least one storage compartment (110), said at least one fan (171) being further configured to be switched between a first operative condition in which said at least one fan (171) is commanded to rotate, and a second operative condition in which said at least one fan (171) is commanded to not rotate; —a MEMS pressure sensor (180) configured to measure the pressure inside said at least one storage compartment (110) and in signal communication with the control unit (172) for providing a pressure signal proportional to the measure of the pressure inside said at least one storage compartment (110), wherein the control unit (172) is configured to control the operation of the refrigerating appliance (100) in function of said pressure signal received when said at least one fan (171) is in the first operative condition.

A refrigerator appliance includes a cabinet that defines first and second compartments. A fan assembly is configured to direct cooled air from a cooling assembly into the first and second compartments. The fan assembly includes a housing that defines an inlet, a first outlet, and a second outlet. The first outlet is in communication with the first compartment, and the second outlet is in communication with the second compartment. A fan is positioned within the housing and is configured to direct the cooled air from the inlet toward the first and second outlets. A damper assembly is configured to selectively obstruct one of the first outlet and the second outlet.

A control method for a refrigerator includes sensing a temperature of a storage room; operating a cool air supply at a cooling power when the sensed temperature of the storage room is equal to or above a first reference temperature; operating the cool air supply at a delay power, which is less than the cooling power, when the sensed temperature of the storage room is equal to or below a second reference temperature, which is less than the first reference temperature while the cool air supply is operating at the cooling power; and adjusting the cooling power or the delay power of the cool air supply according to the temperature of the storage room while the cool air supply is operating at the delay power, and operating the cool air supply at the determined adjusted cooling power or delay power.

A control method for a refrigerator includes sensing a temperature of a storage room; operating a cool air supply at a cooling power when the sensed temperature of the storage room is equal to or above a first reference temperature; operating the cool air supply at a delay power, which is less than the cooling power, when the sensed temperature of the storage room is equal to or below a second reference temperature, which is less than the first reference temperature while the cool air supply is operating at the cooling power; and adjusting the cooling power or the delay power of the cool air supply according to the temperature of the storage room while the cool air supply is operating at the delay power, and operating the cool air supply at the determined adjusted cooling power or delay power.

A refrigerated food container system includes a container defining an inner volume and a thermoelectric module arranged in thermal contact with at least one surface of the container. The thermoelectric module includes a first thermoelectric cooling device and a second thermoelectric cooling device in thermal contact with the first thermoelectric cooling device. A control module is configured to provide a first voltage to the first thermoelectric cooling device and provide a second voltage to the second thermoelectric cooling device.