Dimensions And Technical Data; Pressure Loss Chart; Values - oventrop OKP 10 Instructions D'installation Et D'utilisation

5 Dimensions and technical data

Illustr. 30: Dimensions of tube collectors (illustr. OKP 20)
5.1 Pressure loss chart OKP 20
Chart 1: Pressure losses
Heat transfer liquid "Tyfocor LS" with 40°C
Pressure loss indications without connection hoses
5.2 K

values

v
Numb. of tubes OKP 10
10 1
20 0
30 1
40 0
50 1
60 0
70 1
80 0
90 1
100 0
110 1
120 0
Table 2: K values
v
W
OKP 20 K , total
v
0 3.79
1 2.89
1 2.30
2 2.04
2 1.80
3 1.67
3 1.53
4 1.45
4 1.35
5 1.29
5 1.22
6 1.18
Vacuum
tube collector Unit
Number of tubes Pieces
Gross surface
Outer dimensions
(L x W)
Aperture surface
Absorber surface
Weight
Absortivity coefficient
Emissivity coefficient
Collectors tilt angle Degree 15 up to 75 15 up to 75
Stagnation temperature
at 1000 W/m 2 and 30°C
Max. permissible
working pressure bar
Collector heat return kWh/m
Heat exchanger content
Table 1: Technical data of tube collectors OKP 10 and
OKP 20
6 OKP 20 in series
5 OKP 20 in series
4 OKP 20 in series
3 OKP 20 in series
2 OKP 20 in series
1 OKP 20 in series
Flow rate [l/min]
OKP 10 OKP 20
10 20
m 2 1.7 3.25
m 1.995 x 1.995 x
0.852 1.632
m 2 0.94 1.88
m 2 0.81 1.62
kg 42 78
≥ 0.94 ≥ 0.94
≤ 0.07 ≤ 0.07
°C 210 210
10 10
2 > 525 > 525
l 1.2 2.1
15