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 a cupboard having 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 Freon gas 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 Freon gas sucked from the evaporator and presses the gas into the condenser coil situated at the back of the refrigerator. Compressed Freon gas releases heat from the condenser coil into the atmosphere and turns into liquid. From the condenser, Freon gas passes through an expansion valve or a capillary made of thin copper tubing which has a number of turns and looks like a copper coil. The gas released as low pressure moves into the evaporat