Document wDn50934gn9ggXRJaR4jrOjXo
Heating Ventilating .Air Conditioning Guide 1939
Table 3. Pressure Losses in Dichlorodifluoromethane Suction Refrigerant Lines
Copper Pipe Actual O.D.
Inches
Capacitt BTU per Hour
2,000 4,000 6,000
8,000 10,000
3A 12,000
14,000 16,000 18,000
20,000
7,000 10,000 15,000
m'
20,000 25,000 35,000
45,000 60,000 70,000
,
m
10,000 15,000 20,000
30,000 40,000 50,000
60,000 80,000 100,000
30,000 40,000 . 50,000
60,000
m . 70,000 80,000 ;
90,000 100,000 120,000 ;
140,000
Pressure Drop in Pounds per Square Inch per 100 Ft*
Refrigerant Temperature Deg F
-10
0
10 20 30
0.3 1.3 2.8
4.8 7.4 10.5
14.0
0.3 1.0 2.2
3.8 5.8 8.4
11.0 14.5
0.2 0.8 1.8
3.1 4.8 6.8.
9.1 12.0 15.0
0.2 0.7 1.5
2.6 3.9 5.6
7.6 9.8 12.3
0.2 0.6 1.2
2.1 3.3 4.7
6.4 8.3 10.4
0.4 1.0 1.9
3.3 5.0 9.7
15.8
0.3 0.7: 1.2
2.6 4.6 7.0
10.0
1.6 2.7 4.2
15.0
12.7
0.3 0.3 0.2 0.2 6.7 0.5 0.5 0.4 1.5 1.2 1.0 0.8
2.6 2.1 1.7 1.4 4.0 3.2 2.7 2.2 7.7 6.2 5.1 . 4.3
12.6
0.2 0.5 0.9
10.0
8.4 14.8
0.2 0.4 . 0-7
0.2 0.3 0.6
7.0 12.2 ;
0.1 0.3 0.5
2.1 3.6 5.5.
1.6 2.8 4.4
1.3 2.3 3.5
1.1 1.9 2.9
7.8 14.0
\
6.2 , 11.0
1.3 1.0 2.1 1.7 3:2. .' 2.5
5.0 8.7 13.5-
4.2 . 7.3
11.3
0.8 1.4 2.1
0.7 1.1 1.7
6.1 . 4.5 8.7 6.3
8.4
3.6 4.8 6.3
2.9 '3.8 4.9
2:4 3.1 4.0
8.0 10.0
-
6.2 7.6
4.9 6.1 8.6
40
0.1 0.5 1.0
1.8 2.8 4.0
5.4 7.0 8.7
10.7
0.2 0.3 0.7
1.2 T .9 3.6
5.9 10.2 14.0
0.1 0.2 0.4
0.9 1.6 2.5
3.5 6.2 9.5
0.6 0.9 1.4
2.0 2.6 3.3
4.1 5.0 7.0
9.5
SO
01 0.4 0.9
2.3 3.3
4.5 5.8 7.2
8.9
0.1 0.3 0.6
1.0 1.6 3.0
4.9 8.6 11.7
0.1 0.2 0.4
0.8 1.4 2.1
3.0 5.2 8.2
0.5 0.8 1.2
1.7 2.2 2.8
3.5 4.2 5.9
7.9
' ^Length of tubing includes the average number of fittings.
Cooling and Dehumidification Methods
Table 3. Pressure Losses in Dichlorodifluoromethane Suction Refrigerant Lines (Continued)
Capacitt BTU feb Hour
Pressure Drop in Pounds per Square Inch per 100 Ft* Refrigerant Temperature Deg F
--------- ----------
50,000 100,000 150,000
200,000
VA
250,000 300,000
350,000 400,000
50,000 100,000 150,000
200.000 250,000 300,000
2% 350,000 400,000 450,000
500,000 550,000 600,000
200,000 300,000 400,000
500,000
iya 600,000 700,000
800,000
, 900,000 i,000,000
300,000 400.000 500,000
600,000 700,000 800,000 3 900,000 1,000,000 1,100,000
1,200.000 1,300.000 1,400,000
-10
0.7 2.6 . 5.6
9.8 14.8
0
0.5 1.8 3.9
6.7 10.3 14.5
19.5
0.2 0.7 1.6
2.8 4.3 6.1
8.2
0.2 0.6 1.2
2.1 . 3.4
4.5
6.0 7.8
1.2 2.6 4.5
7.3
1.0 .2.0
3.4
5.4 8.1
1.2 2.0 3.2
4.6 6.4 8.7
. 0.9 1.6 2.5
3.6 4.9 6.4
8.2
10
0.4 1.4 3.0
5.2 8.0 11.3
15.3 19.6
0.1 0.5 1.0
1-.7 2.6 3.7
5.0 6.5 7.7
20
0.3 1.1 2.4
30
0.3 0.9 2.0
4.1 6.3 9.0
12.0 15.3
0.1 0.4 0.8
1.4 2.1 3.0
3.4 5.1 7.2
9.7 12.5
0.1 0.3 0..6
1.1 . 1.7
2.4
4.0 . 5.1
6.4
7.8
3.2 4.2 5.3
6.4 7.7
0.8 1.6 . 2.6
4.1 6.0 8.4
0.6 1.3 2.1
3.3 4.7 6.5
8.6
0.5 1.0 1.7
2.7 3.8. 5.2
6.8 8.7
0.7 1.3 1.9
2.8 3.8 4.9
6.2 7.7 9.4
0.6 1.0 1.6
2.2 3.0 3.9
4.9 6.1 7.3
8.7
0.5 0.8 1.3
1.8 2.5 3.2
3.9 4.9 5.8
6.9 8.0 9.3
40
0.2 0.8 1.6
2.8 4.2 6.0
7.8 10.0
0.1 0.2 0.5
0.9 1.3 1.9
2.5 3.3 4.0
5.0 6.2 7.4
0.4 0.8 1.4
2.2 .3.1 4.2
5.5 7.0 8.9
0.4 0.7 1.0
1.5 2.0 2.5
3.2 4.0 4.8
5.6 6.6 7.6
50
0.2 0.7 1.4
2.4 , 3.6
5.0
6.7 8.5
0.1 0.2 0.4
0.7 1.11.5
2.0 2.7 3.5
4.2 5.1 6.2
0.4 : 0.7 : 1.3
1:9 2.7 3.5
4.6 5.9 7.3
0.3 0.6 0.9
1.3 1.7 2.2
2.7 3.3 4.0
4.8 5.6 6.4
Length of tubing includes the average number of Sittings.'