Abstract:
A refrigerant system has a condenser of microchannel design and construction and includes a reheat cycle. The reheat cycle includes a refrigerant flow control device, such as a three-way valve, for selectively routing at least a portion of refrigerant through a reheat heat exchanger from a location between a compressor and expansion device. A control for the refrigerant system selectively actuates this refrigerant flow control device to route at least a portion of refrigerant through the reheat heat exchanger at system start-up.
Abstract:
This system for cooling a first psychrometric mixture (20) comprises: a condenser (18) capable of condensing a fluid contained in this mixture by direct contact with a liquid (22) comprising this fluid, the liquid (22) being, in said condenser (18), at a temperature below that of the first mixture (20), and an evaporator (19) capable of evaporating the liquid (22) in a second psychrometric mixture (21) comprising the fluid, the liquid (22) being, in the evaporator (19), at a temperature above that of the second mixture (21), the condenser (18) and the evaporator (19) being coupled via a circuit (8, 13) for circulating the liquid (22); and means for regulating the flow rate of the liquid (22).
Abstract:
An ice maker evaporator includes a plurality of dividers and one or more micro-multi-port tubes that are arranged into a plurality of cells such that ice cubes can be formed therein. The evaporator can be made of aluminum and the components can be brazed, soldered or otherwise joined together.
Abstract:
A refrigeration circuit (3) for household appliances comprises a first heat exchanger (5) or condenser in fluid communication with a compressor (4) for allowing the cooling and the consequent condensation of the cooling fluid going through, and a second heat exchanger (7) or evaporator in fluid communication with the first exchanger (5) through a circuit with a special device (6) suitable for decreasing the pressure of the cooling fluid at a space (2) to be cooled. The second exchanger (7) allows the cooling fluid to evaporate, absorbing heat, thus cooling the space (2) and returning through the tubing (17) to the compressor (4). At least one of the heat exchangers (5, 7) comprises a plastic tubing (9), at least a portion whereof exhibits such corrugated profile as to impart flexibility thereof and/or increase the thermal exchange surface.
Abstract:
The present invention concerns a cooling system with an integrated condenser, the cooling system containing at least one compressor which via a pressure outlet may conduct a first coolant through a line to at least one condenser, from where the first coolant flows through at least one expansion valve to at least one evaporator, from where the first coolant is sucked back to the compressor via the suction line of the compressor, where the condenser and the evaporator may both be constructed as closed containers, the containers each containing at least one heat exchanger, where a second coolant flows through the heat exchanger of the evaporator, and where a cooling medium flows through the heat exchanger of the condenser, the cooling medium exchanging heat with the surroundings. It is the object of the invention to indicate an efficient and compact cooling system that forms an assembled unit containing all cooling functions in order to interact with a cooling installation. The container containing the heat exchanger of the condenser may also contain means for oil separation, and the container may interact with an expansion valve. Hereby may be achieved that largely all cooling functions occurring at the same pressure level are integrated in a common pressure vessel. This may be enabled by two different pressure vessels, so that a vessel having about the pressure level existing on the pressure outlet of the compressor includes condensing, oil separation and expansion valve as well. On the evaporator side where the pressure in the container is about equal to the suction pressure of the compressor, there may thus occur integration of an efficient flooded evaporator and a liquid separator.
Abstract:
A water condenser includes a fan which draws a primary airflow through an upstream refrigerant evaporator, through an air-to-air heat exchanger and in one embodiment also an air-to-water heat exchanger uses cold water collected as condensate from the evaporator, the airflow to the evaporator being pre-cooled by passing through the air-to-air heat exchanger and the air-to-water heat exchanger prior to entry into the evaporator wherein the airflow is further cooled to below its dew point so as to condense moisture onto the evaporator far gravity collection. The evaporator is cooled by a closed refrigerant circuit. The refrigerant condenser for the closed refrigerant circuit may employ the fan drawing the airflow through the evaporator or a separate fan, both of which drawing an auxiliary airflow separate from the airflow through the evaporator through a manifold whereby bath the auxiliary airflow and the airflow through the evaporator, or just the auxiliary airflow are guided through the condenser and corresponding fan.