, , Coolpack. , . , .
ϳ Coolpack Refrigeration utilities (, ). , , Log(p)-h ( ' ). , , , , ' Log(p)-h. Cycle. , , (Evaporating temperature), (Condensing temperature), (Superheat), (Subcooling) (Isentropic efficiency).
, . ( ), Coolpack, .
, , , ( 0,15 , 0,05 ).
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³ , . Saturation table (, ). , , , , , , .
Table - . , , , , . , ', , . ³, saturated , vapour , liquid , gas .
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Q. 5 5`. h. Saturation table ( hg ), (h.) , (. Coordinates of points, 1). Table .
ﳿ h. ﳿ h (. . Coordinates of points, 4) Q., Q. , Saturation table.
h Saturation table . ( , ﳿ). г (Subcooling) (. ).
. R22:
t. = 10
t. = 50
Δt. = 10
η. = 0,7.
0.
, Coordinates of points :
1: h = 416,45 / ;
4: p = 19,42 ;
h = 263,25 / .
ﳿ ( Saturation table). 10 :
hg = 408,84 /.
Q = 416,45 - 408,84 = 7,61 /.
Q = 7,61 /.
:
h. = 263,25 7,61 = 255,64 /.
Saturation table, ﳿ 255,64 / 44,5 . , :
Δt = 50 44,5 = 5,5 .
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