Abstract:
A refrigerant system (10, 100, 200) is provided with a power control system (30, 130, 230). The power control system adjusts the speed of the motors driving the refrigerant system components such as a compressor, a fan or a pump via a variable speed device (75, 175, 275) or bypasses the variable speed device (75, 175, 275) for normal operating speeds. A single power control system may be provided for the entire refrigerant system or each component may be independently controlled.
Abstract:
The present invention relates to a cooling device (1) wherein the condensation on the bottom surface of the vegetable container lid (6) is reduced by an all around air circulation encircling the vegetable container (5).
Abstract:
A refrigeration system is employed to cool a refrigerated compartment in a kitchen or restaurant. An electronic refrigeration controller controls various aspects of the refrigerated compartment, including temperature. When a push button is pressed, a "sleep-mode" is activated to safely shut the refrigeration system down and turn the evaporator fan off. An employee can then stock or remove inventory from the refrigerated compartment without cool air blowing on the employee. After a predetermined amount of time, the sleep-mode ends and cool air blows into the refrigerated compartment.
Abstract:
Bei einem No-Frost-Kältegerät mit wenigstens einem Lagerfach (1), einem in einer vom Lagerfach (1) getrennten Kammer (8) angeordneten, abwechselnd ein- und ausgeschalteten Verdampfer (5) und einem Ventilator (9) zum Umwälzen von Luft zwischen dem Lagerfach (1) und der Kammer (8) des Verdampfers (5), ist die mittlere Umwälzleistung des Ventilators (9) in einer eingeschalteten Phase des Verdampfers (5) variabel gemacht, um durch Heraufsetzen der Umwälzleistung die Temperatur des Verdampfers zu erhöhen und die Dauer der Einschaltphasen des Verdampfers zu verkürzen und so die Entfeuchtung im Lagerfach zu reduzieren bzw. um durch Herabsetzen der Umwälzleistung die Temperatur des Verdampfers zu senken und die Dauer der Einschaltphasen des Verdampfers zu verlängern und so die Entfeuchtung im Lagerfach zu steigern.
Abstract:
A refrigerator has a refrigerator compartment (102), a freezer compartment (103), and a low-temperature storage chamber (133) formed in the refrigerator compartment (102) and having a temperature lower than that of the refrigerator compartment (102). The refrigerator includes a compressor (111), a condenser (112), a first throttling device (113), a channel control valve (122), a refrigerator cooling unit (110), and a freezer cooling unit (108) connected in series to form a refrigerating cycle. The refrigerator also includes a second throttling device (124) connected in parallel with the refrigerator cooling unit, a first air fan (109) for sending cold air heat-exchanged by the refrigerator cooling unit (110) to the refrigerator compartment (102), a second air fan (107) for sending cold air heat-exchanged by the freezer cooling unit (108) to the freezer compartment (103), a suction duct (115) for introducing air inside the refrigerator compartment (102) to the refrigerator cooling unit (110), a discharge duct (116) for introducing air cooled by the refrigerator cooling unit (110) into the refrigerator compartment (102) and into the low-temperature storage chamber (133), and an electrically-operated damper (140) accommodated in the discharge duct (116). When the electrically-operated damper (140) is opened, an amount of air to be introduced into the low-temperature storage chamber (133) is greater than an amount of air to be introduced into the refrigerator compartment (102).
Abstract:
A controller and a related method that maintains thermal comfort in an occupied space at a user-defined level while simultaneously maximizing the efficiency of the space conditioning equipment. The controller determines the setting of heating/cooling capacity, indoor airflow rate, evaporator superheat and other system parameters such that a comfort constraint is satisfied. The comfort index may be any arbitrarily-defined relationship of measured or inferred quantities such as air temperature, relative humidity, air velocity, mean radiant temperature, CO2 concentration, etc. The controller ensures that the error between comfort index and the comfort setpoint is zero while the energy consumed by the space conditioning equipment is minimized.
Abstract:
A cooling device comprising a refrigeration compartment (2) and an ice making compartment (3) provided in a thermally-insulated cabin (1); a first evaporator (18) that is provided in the ice making compartment (3) and that is configured to be activated when an ice making cycle (10) is started; a second evaporator (28) that is provided in the refrigeration compartment (2) so as to provide cooling air and that is configured to be activated when a refrigeration cycle (20) is started, and a condenser assembly (14, 24) that is connected to the first evaporator (18) and the second evaporator (28) so as to provide refrigerant transmission, a cooling fan (40) that delivers the cooling air to the condenser assembly (14, 24) and a control unit (50) that adjusts the rotational speed of the cooling fan (40).
Abstract:
A decentralized condenser evaporator system includes a condenser system, a controlled pressure receiver, a subcooler system, and an evaporator system. The condenser system is positioned to receive a compressed gaseous refrigerant from a centralized compressor system. The condenser system is configured to condense the compressed gaseous refrigerant into a liquid refrigerant. The controlled pressure receiver is positioned to receive and store the liquid refrigerant. The subcooler system is positioned to receive the liquid refrigerant from the controlled pressure receiver. The subcooler system is configured to sub-cool the liquid refrigerant into a sub-cooled liquid refrigerant. The evaporator system is positioned to receive the sub-cooled liquid refrigerant from the subcooler system. The evaporator system is configured to facilitate providing a cooling operation to a cooling zone through evaporation of the sub-cooled liquid refrigerant flowing through the evaporator system into an evaporated gaseous refrigerant which is returned to the centralized compressor system.