What is electronic control in refrigerator?

What is electronic control in refrigerator?

The simplest electronic refrigeration controls will use buttons to adjust the temperature and set defrost cycles. The buttons may be rubber and extend out a bit from the control pad, or be in a flat membrane pad, which is easier to clean.

What is the basic purpose of refrigeration?

The fundamental reason for having a refrigerator is to keep food cold. Cold temperatures help food stay fresh longer. The basic idea behind refrigeration is to slow down the activity of bacte- ria (which all food contains) so that it takes longer for the bacteria to spoil the food.

Why cooling is important in power electronics circuit?

By incorporating heat pipes onto the surface of an air cooled heat sink, high concentration of heat from power electronics can be spread out over a larger area are very quickly. This cooling technology is ideal for SiC and Power Amplifier applications.

What is mechanical thermostat in a fridge?

Mechanical Thermostat Mechanical Thermostats operate on the principle that gas in a sealed capillary tube expands and contracts with temperature. One end of the tube is attached with good thermal contact to a mounting point on the evaporator, and the pressure expands or contracts bellows within the thermostat.

What type of control system is used in refrigerator and geyser?

A Temperature Controlled System is a type of control system that automatically controls the temperature of an object or an area. We commonly use temperature control systems in Air Conditioners, Refrigerators, geysers, etc.

What type of device is a refrigerator?

A refrigerator is an electronic device.

What is refrigeration engineering?

(rɪfrɪdʒəreɪʃən) (Mechanical engineering: Energy, thermodynamics and heat transfer) Refrigeration involves the boiling and condensation of a refrigerant to cool a surface or volume. Refrigeration is a process which cools a closed space by removing heat from it.

What is the function of compressor in refrigerator?

The compressor is the “heart” of a refrigerator. It circulates the refrigerant throughout the system and adds pressure to the warm part of the circuit, and makes the refrigerant hot. It’s similar to when you are pumping air into a bicycle tube – you can sense a heat increase in the pump while you compress the air.

Why compressor is used in refrigerator?

At its most basic level, a compressor is like a pump. Its job is to increase the pressure of the liquid refrigerant. It pulls in air and increases the pressure of the refrigerant that is driven through the system. The other two key pieces of the refrigerator system are the condenser coils and the evaporator coils.

What are different methods of cooling power devices are?

There are three primary techniques of transferring or dissipating heat from power and other electronic devices: These are conduction, convection, and radiant. In all cases, the heat is being transferred from the hot electronic device to another medium that is at a lower temperature.

What are the cooling requirements of a power converter?

With converters, the degree of cooling for specific air speeds and area for the metal surface has been characterized. Typically, an air speed of 200 linear feet per minute (lfm), readily achieved with standard fans, is desired across the heat surface or heat sink fins in order to achieve substantial cooling.

What is refrefrigeration and what are its applications?

Refrigeration has many applications, including, but not limited to: household refrigerators, industrial freezers, cryogenics, and air conditioning. Heat pumps may use the heat output of the refrigeration process, and also may be designed to be reversible, but are otherwise similar to air conditioning units.

What is a metering device in a refrigeration system?

The metering device is a point where we will start the trip through the cycle. This may be a thermal expansion valve, a capillary tube, or any other device to control the flow of refrigerant into the evaporator, or cooling coil, as a low-pressure, low-temperature refrigerant.

What is the refrigeration cycle and how does it work?

The Refrigeration Cycle is a simple but amazingly clever and useful process. In its simplest form, the refrigeration cycle consists of just 4 basic components to complete the circuit: That’s it. Well, that’s almost it – we also need a refrigerant to cycle inside the circuit.

Where does the refrigerant go in a refrigeration system?

Some systems will have a receiver immediately after the condenser and before the metering device, where the refrigerant is stored until it is needed for heat removal in the evaporator. There are many different kinds and variations of the refrigeration cycle components.