Table of Contents
Advertisement
Freezing cycle and refrigerant
6-1-3. Operation description of each circulation circuit
No.
Parts name
Compressor
1
Condenser & hot line
2
pipe
Drier
3
Capillary tube
4
Evaporator
5
Suction pipe
6
Caution
u Because the outlet of the capillary tube is where the high pressure refrigerant changes from high to low
pressure, the low pressure refrigerant quickly diffuses to the evaporator, making flash sounds. (shik shik
sound)
u When the low pressure liquid refrigerant evaporates from the evaporator, it is done throughout the whole
pipe from inlet to outlet, making a sound of liquid refrigerant flowing. This can happen depending on the
load condition of the refrigerator and on the evaporation, but it is not a problem.
6-2. Refrigerant
Refrigerant
Because it does not include chloride, which cause ozone
R134a
destruction, it will not destruct the ozone and has a low
(HFC-134a)
GWP compared to the existing R12 (GWP: 15300).
g ODP: Ozone Depleting Potential (Relative index with CFC11 as 1.0)
GWP: Global Warming Potential (Relative index with CO2 as 1.0)
Operation details
Compress the refrigerant from low pressure
(0kg/cm
2
) to high pressure (8-12kg/cm
High pressure gas refrigerant exhausts heat
and becomes liquid refrigerant.
There is an absorbent that absorbs the
moisture within the circulation circuit.
(Moisture absorption device)
This is the long narrow pipe where high
pressure refrigerant passes to reduce the
pressure.
Low pressure liquid refrigerant absorbs heat
to change to low pressure gas refrigerant.
This connects the evaporator and the
compressor.
Characteristics
- 32 -
Refrigerant gas condition (input and output)
Low pressure gas-->High pressure gas
2
).
(0kg/cm
2
) (8~12kg/cm
Temperature (30°C) ¡ (80~120°C)
High pressure gas-->High pressure liquid
(8~12kg/cm
2
) (8~12kg/cm
Temperature (80~120°C) ¡ (40~60°C)
High pressure liquid-->Low pressure liquid
(8~12kg/cm
2
) (0kg/cm
Temperature (40~60°C) ¡ (-27°C)
Low pressure liquid-->Low pressure gas
(0kg/cm
2
) (0kg/cm
Temperature (-27°C)
Low pressure gas-->Low pressure gas
(0kg/cm
2
) (8~12kg/cm
Temperature (-27°C) ¡ (30°C)
ODP
GWP
0
1200
2
)
2
)
2
)
2
)
2
)
Remarks
Refrigerant
Advertisement
Table of Contents
