|
|
 |
|
|
 |
 |
 |
 |
 |
 Definition of Refrigerator |
|
|
 Principles of refrigerator
|
|
Refrigeration is to maintain a lower temperature
than the surrounding temperature. In order to do this,
an insulated enclosure, heat absorber, and a cycle for
phase transition of a refrigerant are necessary.
When alcohol is rubbed on skin, it takes away the heat
by evaporation. This cooling effect is the principle of
refrigerators.
|
Structure of refrigerator
In the early days of refrigerators, the direct cooling
method was adopted, but the indirect cooling method
has become universal these days.
|
Constitution of refrigerator
Freezer
-Compressing equipment: Compressor, Oil
-Condensing equipment: Condenser
-Cooling equipment: Capillary tube, Evaporator
-Refrigerant : R12(CFC), R134a(CFC FREE)
-Auxiliary equipment: Suction pipe, Drier, Drain condenser,
Hot line
Power equipment
-FAN MOTOR for cool air circulation
-FAN MOTOR for condensation
Cabinet
-Main body, door
-Outter case
-Inner case, Door liner
-Insulation material
Temperature control equipment
-Theromstat
-Damper control
Operation control equipment
-Operation equipment: Starter, Starting and running capacitor
-Safety equipment: OLP(Over Load Protector)
Defrosting equipment
-Defroster: Timer, Defroster thermostat, Heater
-Safety equipment: Temperature fuse
Safety equipment
-Current fuse |
|
|
