Abstract: A refrigerator has a refrigerating cycle sequentially connecting a compressor, a condenser, a drawing mechanism, and evaporator, an accumulator, an inlet temperature sensor and an outlet temperature sensor for detecting the temperatures of the inlet and outlet of the evaporator, and a cooling fan for cooling the compressor. When the difference between the temperature detected by the inlet temperature sensor and the temperature detected by the outlet temperature sensor is a predetermined value or more, the cooling fan is stopped.

Abstract: A humidity control method is provided for a multi-stage cooling system having two or more refrigerant circuits that balances humidity control and cooling demand. Each refrigerant circuit includes a compressor, a condenser and an evaporator. A hot gas reheat circuit having a hot gas reheat coil is connected to one of the refrigerant circuits and is placed in fluid communication with the output airflow from the evaporator of that refrigerant circuit to provide additional dehumidification to the air when humidity control is requested. The hot gas reheat circuit bypasses the condenser of the refrigerant circuit during humidity control. Humidity control is only performed during cooling operations and ventilation operations.

Abstract: The exhaust heat recovery system of the invention includes: a thermoelectric conversion element that generates electric energy by thermoelectric conversion using heat of exhaust gas discharged from an engine; and a heat pump including a heat recovery unit that absorbs the heat contained in the exhaust gas through an endothermic reaction using a heating medium, and a heat generation unit which generates heat through an exothermic reaction of the heating medium and which supplies the heat to the thermoelectric conversion element. With this configuration, the thermoelectric conversion element and the heat generation unit are movably attached to each other such that they can be placed in contact with and separated from each other, and the heat recovery unit is positioned in an exhaust gas passage in an exhaust gas downstream flow direction from the heat generation unit.

Abstract: A thermostatic valve incorporated within a plumbing system for regulating the flow of fluid. The thermostatic valve includes two valve assemblies operatively cooperating to preclude the flow of scalding water. The first valve assembly and second valve assembly respond to different fluid temperatures, as well as, over separate periods of time. The thermostatic valve can be incorporated in an “end-line” device such as a showerhead or faucet assemblies to create an “anti-scaled” plumbing fixture. The invention includes a valve housing having a first compartment and a second compartment, a fluid passageway, a first valve assembly, a second valve assembly, a first spring, a first stopper, a first flange, a first-thermostatic cylinder, a second spring, a second stopper, a second flange, a second thermostatic cylinder, and a third spring.

Abstract: Refrigerator including a body forming an outer appearance of the refrigerator, a terminal detachably mounted on the body for controlling the refrigerator, a power supply device at one side of the body, for receiving power from an outside of the refrigerator, converting to a predetermined charge power, and supplying to the terminal, and an electric connection part connected between the power supply device and the terminal.

Abstract: A control system for a cooling system includes a first sensor for sensing a property indicative of demand for cooling and a controller coupled to the sensor. The controller produces the variable duty cycle control signal in response to the property and causes the compressor and valve to vary a cooling capacity of the cooling system in response to the variable duty cycle control signal. The sensor may sense the pressure, temperature, or both. The valve may be a suction-side pressure regulator or a liquid-side expansion valve of the solenoid or stepper type.

Abstract: A performance testing apparatus includes a refrigerant pipe provided with open ends, and installed such that a condenser, an expansion device and an evaporator are sequentially aligned from one end thereof to the other end thereof. A refrigerant heating unit is installed at one end of the refrigerant pipe for heating a refrigerant by a double boiler method and transmitting the heated refrigerant to the other end of the refrigerant pipe. Cooling fluids are respectively provided outside of the condenser and the evaporator for exchanging heat with the refrigerants in the condenser and the evaporator. A flow rate measurement unit is used for measuring the flow rate of the refrigerant flowing within the refrigerant pipe. A temperature and pressure measurement unit measure variations in temperature and pressure of the refrigerant passing through the condenser, the expansion device and the evaporator.

Abstract: Temperature regulation by means of a PID regulation method can be associated with disadvantageous oscillations, overshooting and long control times. According to an exemplary embodiment of the present invention, during temperature regulation of a space, non-linear fuzzy logic is provided which for intelligent temperature regulation uses extensive information from the environment. Such information includes in particular the temperature in the air inlet duct upstream of the heater, and the rate of change in the temperature in the air inlet duct upstream of the heater and in a first cell of the space. In this way, a fast and precise temperature regulating system may be provided which largely prevents or suppresses undesirable oscillations.

Abstract: A method and apparatus for measuring the temperature of a computer system provides a first temperature sensor, positioned around or on a CPU, for sensing the temperature of the CPU or around the CPU. A first A/D converter is used to convert the temperature sensed by the first temperature sensor into a first temperature value. At least one second temperature sensor, positioned inside the housing, senses the temperature around the housing. At least one second A/D converter converts the temperature sensed by die second temperature sensor into a second temperature value. The first temperature value and second temperature value are input to a control circuit, and a suitable value to output a control signal for controlling the speed of the fan is chosen so as to precede the heat dissipating of the computer system.

Abstract: Systems and methods of operating a cooling system provide for determining one or more cooling requirements of a computing system and controlling one or more vent valves of the cooling system based on the cooling requirements. In one approach, the cooling requirements are determined based on operating system state data and/or power management data.

Abstract: An air conditioner for an automobile having a passenger compartment comprising is provided, including an air control system to control a property of air entering the passenger compartment, a manual setting member through which the property of the air is manually controlled, and a control system that automatically controls the property of the air based on a control characteristic. The control system updates the control characteristic based on an input from the manual setting member and based on a variable learning rate. The variable learning rate may be based on a time value measured between a first adjustment of the manual setting member and a second adjustment of the manual setting member and based on a magnitude of the second adjustment of the manual setting member. The property of the air entering the passenger compartment may be volumetric flow rate or temperature.