A refrigerating and freezing device including a cabinet, and an aging device for aging a to-be-aged material therein is provided in the cabinet. The aging device includes an outer housing and an inner housing provided in the outer housing, and an aging chamber for accommodating the to-be-aged material is defined in the inner housing; two transverse sides of the inner housing and two transverse sides of the outer housing are arranged at intervals to form two longitudinally extending air supply channels, and the air supply channels are communicated with the aging chamber through air supply ports formed in two transverse side plates of the inner housing. The aging device further includes a circulating fan for driving air flow in the two air supply channels to flow into the aging chamber through the air supply ports.

It is advisable to remove harmful pathogens by filtering the air in a space using a set of filters over intakes. As the air travels through ductwork for that purpose the filters remove harmful pathogens. Harmful pathogens may include viruses or bacteria to name a few. Other pathogens may also be removed depending on the filtration media. This device is designed to be portable and caster wheels that can be locked have been placed on the air handler of the device.

A cold storage heat exchanger includes multiple refrigerant tubes arranged to provide a clearance therebetween, multiple cold storage containers each of which is interposed between adjacent refrigerant tubes, bonded to the adjacent refrigerant tubes and defining a compartment receiving a cold storage material. A surface of each cold storage container has multiple protrusion portions, and each protrusion portion protrudes outward and is in contact with the adjacent refrigerant tubes. The multiple protrusion portions are arranged in a zigzag manner or extend continuously in an air flow direction.

A refrigerator includes a refrigerator cabinet, a freezer compartment disposed within the refrigerator cabinet, a fresh food compartment disposed within the refrigerator cabinet, an ice making compartment remote from the freezer compartment, and a fresh food compartment duct riser extending upwardly along a back of the fresh food compartment. The refrigerator further includes a shroud associated with a freezer compartment evaporator, an ice compartment supply duct leading from the shroud to the ice making compartment, and an ice compartment return duct leading from the ice making compartment towards the freezer compartment evaporator. The ice compartment supply duct has a split pathway and is positioned behind the fresh food compartment duct riser.

A modular air handler is adapted for installation in a racking assembly behind palletized product. The air handler operates to move air through the adjacent layers of palletized product upon placement of the palletized product in the adjacent space. The air handler can be deactivated in order to prevent unnecessary air flow when no palletized product is present in the adjacent space. A number of the modular air handlers may be provided for a racking assembly, such that individual pallet bays may be activated or deactivated as palletized product is deposited or withdrawn from the various pallet bays of the rack.

A cold storage arrangement and related methods include an insulated end wall, a rear end wall, and a pair of lateral walls defining a chamber therein. An insulated partitioning wall extends through the chamber to partition the chamber into an insulated compartment and a utility room. First and second refrigeration cabinets configured to receive respective first and second refrigeration units are positioned within the utility room. A first inlet vent and a first outlet vent are configured to fluidly connect the first refrigeration cabinet to the atmospheric air for receiving atmospheric air into the first refrigeration cabinet and discharging a first exhaust air from the first refrigeration cabinet. A second inlet vent and a second outlet vent are configured to fluidly connect the second refrigeration cabinet to the atmospheric air for receiving atmospheric air into the second refrigeration cabinet and discharging a second exhaust air from the second refrigeration cabinet.

A bottom mount refrigerator is provided including a thermal battery or phase change material positioned within the refrigerator or freezer in order to increase energy efficiency and compartment sizes of the refrigerator. The thermal battery can be used with an ice maker to aid in removing heat from the water in the ice maker to produce ice. Furthermore, the phase change material or thermal battery may be used with a thermoelectric cooler to aid in ice production. The phase change material may be tuned to various temperatures according to the desired use of the phase change material, as well as the location of the thermal battery or phase change material. Other embodiments include positioning the phase change material in the liner of the compartments or in thermal storage units in order to further increase the energy efficiency of the refrigerator.

A cooling unit (506) for a vehicle (200) is provided. The cooling unit includes a compressor (428) electrically connected to a power module (314), a condenser (530) operably connected to the compressor, an evaporator (536) operably connected to the compressor and the condenser, the evaporator configured to cool ambient air (520), and at least one flexible duct (208) configured to fluidly connect the evaporator with a cargo held in a cargo space of the vehicle.

To continue operating a compression refrigerant system even while the system's brazed plate heat exchanger contains, in localized areas, water at or below its atmospheric subfreezing water temperature, a penetrating temperature probe senses the water temperature at a strategic intermediate point between the heat exchanger's water inlet and outlet. The brazed plate heat exchanger comprises a series of corrugated plates stacked and brazed together to create an alternating arrangement of water and refrigerant passages in heat transfer relationship with each other. In some examples, the idea is to take advantage of the principle that water has a lower freezing temperature at relatively high pressure and that the relatively small micro-channel passages of intermediate water passages within the brazed plate heat exchanger can withstand appreciably higher pressure than other areas within the heat exchanger, such as the areas at the heat exchanger's water inlet and water outlet.

A geothermal heat utilization system includes a heat source well facility, a heat source device having a refrigeration cycle including a compressor, a condenser, an expanded portion, and an evaporator, a primary refrigerant circuit that is connected to a first unit which is one of the condenser and the evaporator of the heat source device, heat exchange being able to be performed between the first unit and the well-side pipe, a secondary refrigerant circuit that is connected to a second unit which is the other of the condenser and the evaporator of the heat source device, heat exchange being able to be performed between the second unit and a load, and a mode switching unit that switches between a cold heat storage operation mode in which the primary refrigerant circuit is connected to the evaporator and the secondary refrigerant circuit is connected to the condenser and a cold heat discharge operation mode in which the primary refrigerant circuit is connected to the condenser and the secondary refrigerant circuit is connected to the evaporator.