Technical Description of refrigerator and an Electric Iron
Technical Description of a refrigerator A refrigerator is a domestic appliance for storing the eatables and keeping them fresh for a longer duration. It looks like an insulated cupboard having copper coils for heat transfer at its back and racks inside for storing eatables and bottles besides an ice chamber for ice. Some refrigerators have two doors, one for eatables and other for an ice chamber. It uses a fluid like Freon gas or other fluid like R-600a as a refrigerant which when released at low pressure, vaporizes and causes a cooling effect. It has a compressor at its bottom. The compressor driven by electric motor compresses vaporized refrigerant sucked from the evaporator and presses the refrigerant into the condenser coil situated at the back of the refrigerator. Compressed refrigerant releases heat from the condenser coil into the atmosphere and turns into liquid. From the condenser, refrigerant passes through an expansion valve or a capillary made of th...