Abstract: A method for cooling an icemaker is disclosed. The icemaker includes an ice mold body having a channel for transport of coolant and a plurality of ice cavities. The method includes the steps of injecting a coolant into the channel, adding water to the ice cavities, forming ice cubes in the ice cavities, removing coolant from the channel, heating the ice mold body, and ejecting the ice cubes from the ice mold body. The removal step is performed by reversing direction of a coolant pump.

Abstract: An integrated circuit is cooled by microarchitecture controlled Peltier effect cooling. In one embodiment, a temperature sensor thermally coupled to at least a portion of the integrated circuit of a die is adapted to provide an output as a function of the temperature of an integrated circuit portion. Operation of a thermoelectric cooler thermally coupled to the integrated circuit portion is controlled as a function of the sensor output, wherein a controller of the integrated circuit controls the thermal electric cooler. Other embodiments are described and claimed.

Abstract: After a chiller unit is started, an opening command of 10 pulses is output to an electronic expansion valve, and after a predetermined period of time (at the time of starting with unload) elapses, an opening command of 100 to 150 pulses is output to open the electronic expansion valve up to a predetermined opening degree. Thereafter, a discharge side refrigerant super-heat TdSH is monitored and a closing command of 1 pulse/sec is output to the electronic expansion valve to drive the same in a closing direction in a short time until TdSH becomes 20 K. After TdSH has reached 20 K, a closing command of 1 pulse/3 sec is output to the electronic expansion valve, until TdSH becomes 25 K, to drive the electronic expansion valve 3 at a smaller speed in the closing direction than that speed in the closing direction until TdSH becomes 20 K.

Abstract: A portable active cryo container for maintaining product at refrigerated and/or cryogenic temperatures. Said container comprising a control system to monitor and control the flow of cooling air from a bunker section to at least one material storage section wherein temperature sensitive product is contained.

Abstract: A refrigerator-freezer of the combined type comprises a first and a second refrigerating units and a single cooling circuit for both units, which are fluid-dynamically and reciprocally connected by an air passage conduit; the temperature inside the first unit is controlled by a device comprising motorised interception means of the passage conduit; electronic control means of the motorised interception means, directly carried aboard a supporting body adapted in use to be arranged along the passage conduit; an electronic temperature sensor operatively and directly connected to the electronic control means, carried aboard the supporting body; and ventilator means, carried aboard the supporting body, operated by the electronic control means of the motorised interception means for selectively ensuring circulation of air by forced convection between the first and second refrigerating units along the passage conduit.

Abstract: Disclosed herein is a method and apparatus for cooling an environment using a low temperature heat source. A cooling apparatus is provided. A refrigerant is vaporized from a refrigeration solution using the low temperature heat source. The vaporized refrigerant with part of the refrigeration solution is channeled to a separator. The vaporized refrigerant is separated from the channeled refrigeration solution. The refrigerant is further vaporized from the separated refrigeration solution leaving behind a dilute refrigeration solution. The refrigerant is condensed. A part of the condensed refrigerant is fed to the first vaporizer leaving behind a residual part of the condensed refrigerant. The residual part of the condensed refrigerant is evaporated by absorbing heat from the environment thereby cooling the environment. The evaporated refrigerant is absorbed by the dilute refrigeration solution to produce a concentrated refrigeration solution.

Abstract: A vapor compression system includes a compressor, a condenser, an expansion device and an evaporator. Refrigerant circulates though the closed circuit vapor compression system. Touchdown bearings protect a rotor during power shutdown of the compressor. Liquid refrigerant from the condenser flows along a supply line and lubricates the touchdown bearings. The refrigerant from the touchdown bearings is discharged through an outlet and flows along a discharge line to the evaporator.

Abstract: A system for regulating the amount of outdoor air that is introduced into a building determines characteristics of the outdoor air using sensor inputs. The system uses extremum seeking control logic to vary the flow of outdoor air provided into the building in response to the cooling load determinations.

Abstract: In an air conditioning system for circulating cooled air to an enclosed space, a controller including a temperature sensor, a humidity sensor and a microcontroller for controlling the indoor fan or blower to prevent operation of same if a fan run-on mode is selected or continuous fan operation is selected and the humidity sensed in the enclosed space is greater than a predetermined amount. Continuous fan operation is allowed unless the humidity exceeds a user defined setpoint during an air cooling operating mode. If the humidity sensed is greater than the predetermined amount, the fan is operated only when the system is providing cooled air, such as when the system compressor is energized.

Abstract: A device for automatic processing of contaminated refrigerant from an air conditioning system, said device comprising a compressor for compressing refrigerant. Said device further comprising an oil separator, said oil separator receiving compressed refrigerant from said compressor; said oil separator further including means for draining oil separated from said compressed refrigerant. Said device further comprising a storage tank, said storage tank receiving and temporarily containing said compressed refrigerant from said oil separator. Said storage tank including a vapor port and a liquid port. Said device further comprising a vacuum pump for creating low pressure within said device during evacuation of refrigerant. Said device further comprising a low pressure service hose for connecting said device to said air conditioning system. Said device further comprising a high pressure service hose for connecting said device to said air conditioning system.

Abstract: A method of controlling the frequency of a compressor in a chiller system is disclosed. The method includes determining a nominal minimum frequency of a compressor, and providing a control algorithm for controlling the period of time and the deviation of the actual operating frequency below the nominal minimal frequency that the compressor may operate without shutting down the chiller system. The time period of operation below nominal minimum frequency may be predetermined as a fixed time period of operation below nominal minimum frequency, or as a variable time period based on the amount by which the frequency deviates below nominal minimum frequency. Also, an absolute minimum operating frequency is provided that results in the control algorithm shutting down the chiller system and the compressor.