Document pmrwEm2y14K20V9Ky5yvGgeGa
(
HEATING VENTILATING AIR CONDITIONING GUIDE 1940
Table 3. Pressure Losses in Dichlorodifluoromethane Suction Refrigerant Lines
Copper Pipe
Actual O.D.
Inches
Capacity
BTU per Hour
2,000 4,000 6,000
8,000 10,000
y* 12,000
14,000 16,000 18,000
20,000
7,000 10,000 15,000
20,000 25,000 35,000
45,000 60,000 70,000
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 70,000. 80,000
90,000 100,000 120,000
140,000
' 100 Pressure Drop in Pounds per Square Inch per
Ft
FRefrigerant Temperature Deg
-10
0.3 1.3 2.8
4.8 7.4 10.5
14.0
!
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
6.1 8.7
0
0.3 1.0 2.2
3.8 5.8 8.4
11.0 14.5
0.3 0.71.5
2.6 4.0 7.7
12.6
0.2 0.5 0.9
2.1 3.6 5.5
7.8 14.0
1.3 2.1 3.2
4.5 6.3 8.4
10 ;
0.2 0.8 1.8:
3.1 4.8 6.8
9.1 12.0 15.0
0.3 0.5 1.2
2.1 3.2 6.2
10.0
0.2 0.4 0.7
1.6 2.8 4.4
6.2 11.0
1.0 1.7 2.5
3.6 4.8 6.3
8.0 10.0
20 '
0.2 0.7 . 1.5
2.6 3.9 5.6
7.6 9.8 12.3
15.0
0.2 0.5 1.0
1.7 2.7 5.1
8.4 14.8
0.2 0.3 0.6
1.3 2.3 3.5
5.0 8.7 13.5
0.8 1.4 2.1
2.9 3.8 4.9
6.2 7.6
3Q
0.2 0.6 1.2
2.1 3.3 4.7
6.4 8.3 10.4
12.7
0.2 0.4 0.8
1.4 2.2 4.3
7.0 12.2
0.1 0.3 0.5
l.i
1.9 2.9
4.2 7.3 11.3
0.7 1.1 1.7
2.4 3.1 4.0
4.9 6.1 8.6
40 50
0.1. 0.5 1.0
0.1 0.4 0.9
1.8 1.5 2.8 2.3 4.0 3.3
5.4 4.5 7.0 5.8 8.7 7.2
10.7 8.9
0.2 0.1 0.3 0.3
0.7 0.6
1.2 . . 1.0
1.9 1.6 3.6 3.0
5.9 10.2
14.0
4.9
8.6 11.7
0.1 0.1 0.2 0.2 0.4 0.4
0.9 0.8 1.6 1.4 2.5 2.1
3.5 3.0 6.2 5.2 9.5 8.2
0.6 0.5 0.9 0.8 1.4 1.2
2.0 1.7 2.6 2.2 3.3 2.8
4.1 3.5 5.0 4.2
7.0 5.9
9.5 7.9
Length of tubing includes the average number of fittings. 448
CHAPTER 24. COOLING AND DEHUMIDIFICATION METHODS
Table 3. Pressure Losses in Dichlorodifluoromethane Suction Refrigerant Lines (Continued)
Copper Pipe
Actual O.D.
Inches
Capacitt
BTU per Hour
50,000 100,000 150,000
Pressure Drop in Pounds per Square Inch PER 100 Ft
FRefrigerant Temperature Deg
-10 0
10 20 30
40 50
0.7 0.5 0.4 0.3 0.3 0.2 0.2 2.6 1.8 1.4 1.1 0.9 0.8 0.7 5.6 3.9 3.0 2.4 2.0 1.6 1.4
2% m iVa 3Va
200,000 250,000 300,000
. 9.8 14.8
350,000 400,000
50,000 100,000 150,000 :
0.2 0.7 1.6
200,000 250,000 300,000
2.8 4.3 6.1
350,000 400,000 450,000 -
. 500,000 550,000 600,000
200,000 300,000 400,000
500,000 600,000 700,000
800,000 900,000 1,000,000
300,000 400,000 500,000
600,000 700,000 800,000
8.2
1.2 2.6 .4,5 7.3
1.2 2.0 3.2 4.6 6.4 8.7
900,000 1,000,000 1,100,000
1,200.000 1,300,000 1,400,000
6.7 10.3 14.5 19.5
0.2 0.6 1.2 2.1 3.4 4.5
6.0 7.8
1.0 2.0 3.4 5.4 8.1
0.9 1.6 2.5 3.6 4.9 6.4
8.2
5.2 8.0 11.3
15.3 : 19.6 '
0.1 0.5 1.0
1.7 2.6 3.7
4.1 6.3 9.0
12.0 15.3
0.1 0.4 0.8
1.4 2.1 3.0
5.0 4.0 6.5 5.1 7.7 6.4
7.8
0.8 0.6 1.6 1.3 2.6 2.1
4.1 3.3 6.0 4.7 8.4 6.5
8.6
0.7 0.6 i 1.3 1.0 1.9 1.6
2.8 2.2 3.8 3.0 4.9 3.9
6.2 4.9 7.7 6.1 9.4 7.3
8.7
3.4 5.1 7.2
9:7 1215
0.1 0.3 0.6:
1.1 1.7 2.4
2.8 4.2 6.0
7.8 10.0
0.1 0.2 0.5
0.9 1.3 1.9
2.4 3.6 5.0
6.7 8.5
0.1 0.2 0.4
0.7 1.1 1.5
3.2 . 2.5
2.0
4.2 3.3 2.7
5.3 4.0 :3.5
6.4 5:0 4,2 7.7 6.2 5.1
7.4 6.2
0.5 0.4 0.4 1.0 0.8 0.7 1.7 1.4 1.3
2.7 2.2
3.8 . 3.1 5.2 4.2
.1.9 2.7 ' 3.5
6.8 5.5 4.6 8.7 7.0 ,. ... 5.9
8.9 7.3
0.5 i 0.4 .0.8 . : 0.7 1.3 1.0
0.3 0.6 0.9
1.8 1.5: 2.5 : 2.0 3.2 2.5;1
1.3 1.7 2.2
3.9 3.2 ' 2.7 4.9 4,0 3.3 5.8 4.8 ! 4.0
6.9 5.6 4.8 8.0 6.6 5.6 9.3 7.6 6.4
Length of tubing includes the average number of fittings.:.
449