TCL TAC-09CHSC User Manual

4) Circulation amount of refrigerant : An amount of refrigerant to be evaporated in evaporator to obtain the
refrigerating capacity needed. It is expressed in the weight by the unit time.
G: Circulation amount of refrigerant (kg/h)
Q: Refrigerating capacity needed (Kcal/h)
qe: Refrigerating effect by the refrigerant 1kg (Kcal/kg)
To decide the capacity of compressor, the circulation amount of refrigerant should be converted into the suction
gas amount of compressor.
V: Suction gas amount of compressor (m
3
/h)
VA: Specific volume of refrigerant at compressor inlet (m
3
/kg)
The amount of piston extrusion is calculated as follows.
D: Diameter of cylinder (m)
n: Rotational speed of compressor (rpm)
L: Piston stroke (m)
N: No. of cylinder
5) Coefficient of performance : The efficiency of refrigerating cycle. It is expressed in COP as the abbreviation
of Coefficient of Performance.
G =
Q
............................................................................................................................................. (7.6)
q
e
COP =
Refrigerating effect
¡
Refrigerating effect
Heat equivalent of work Shaft power for compressor(KW) x 860
COP =
qe
=
iA-iD
...................................................................................(7.9)
Al iB-iA
V = G
vA
=
Q
vA
=
QvA
(m
3
/
h
)
.......................................................................................................... (7.7)
qe i A - i D
V' =
π
D
2
L X 60nL
............................................................................................................................................. (7.8)
4
Al : Heat equivalent of work for compression (Kcal/kg)
qe : Refrigerating effect (Kcal/kg)
COP is greater than 1, and the greater COP is, the better the performance is.
For the general COP of refrigerator, compressive efficiency hc and machine efficiency hm should be considered.
COP'= COP x hc x hm ............................................................................................................................(7.10)
TCL Air Conditioner Service Manual
13

TCL TAC-09CHSC Specifications

General

Brand	TCL
Model	TAC-09CHSC
Category	Air Conditioner
Language	English