4. Determine the upper temperature:
T
wi
+ T
wu
k = ————— – T
omg
2
65 + 50
k = ————— – 18 = 39 Kelvin
2
This value can be used to look up the heat capacity of the panel in the table (heat delivery
table)
[6]
(type 1,2,3 and 4). This is the value Q
pp
.
(T=1) Q
pp
= 132 W/m (heat output table)
[6]
5. Determine the heat delivery for a single length:
q = L
B
x Q
pp
q = 42 x 132 = 5544 W/section
6. Determine the temperature variation of the water:
∆T = T
wi
– T
wu
∆T = 65 – 50 = 15 K
7. Determine the mass flow of the liquid in one panel length:
m = (q/∆T ) x 0.86
5544
m = ———— x 0,86 = 318 kg/h
15
8. Determine the mass flow per pipe:
m
pb
= m / n
1 section consisting of a Type 1 panel.
[2]
Flow may take place through 4 pipes or 2 pipes. The mass flow must be calculated for these
two situations in order to connect the panel on the water side.
m
pb
= 318 / 4 = 79,5 kg/h (B)
318 / 2 = 159 kg/h (A)
9. Check the minimum mass flow using the appropriate table
[7]
(68 kg/h). The calculated value
must be higher in order to achieve turbulent flow through the pipes. This then gives the
correct number of distributors
[2]
.
6
10. Determine the pressure drop on the water side
[2]
:
T1 Single side Sit.A
∆P = (Lb x R1) + (Lb x R2) + Z
T2 Single side Sit.A
∆P = (Lb x R1) + (Lb x R2) + Z
T3 Single side Sit.A
∆P = (Lb x R1) + (Lb x R2) + Z
T4 Single side Sit.A
∆P = (Lb x R1) + (Lb x R2)+ (Lb x R3) (Lb x R4)+ Z
T1 Alternating sides Sit.B
∆P = (Lb x R1) + Z
T2 Alternating sides Sit.B
∆P = (Lb x R1) + Z
T3 Alternating sides Sit.B
∆P = (Lb x R1) + (Lb x R2)+ (Lb x R3) + Z
T3 Alternating sides Sit.C
∆P = (Lb x R1) + Z
R = Water resistance per panel length in Pa/m
Z = water resistance in Pa for both distributors
R
= x 196
Calculation example: T=1 , 79,5 kg/h (B)
∆P = LB x R +Z
R = 41 Pa
Z = 202 Pa
Determine the pressure drop for both panel groups:
∆P = 42 x 41 + 202 = 1924 Pa
3.0 Transport
Leave the panels on the pallet for as long as possible.
Ensure the pallet does not bend too much (do not move the pallet using a pallet truck).
To prevent bending, move the panel rotated/turned by 90º
[8]
.
Panels must be stored in a dry environment.
4.0 Mounting panels [9][10]
4.1 Mounting instructions [9]
– The panel must be placed at a minimum height of 2m above the floor.
– The measurement from the centre point of the panels must not be greater than the height
above the floor.
[5]
– Distance between the installation profiles max. 2 metres
[9]
.
– Suspend the panels in such a way that they can expand freely lengthways
[9][10]
.
Key table
[10]
A = Number of tubes
B = Section length
D = Number of brackets
E = Number of press links
F = Cover between panels
m
Z = x 2000
1000
( (
2
m
pipes
173
( (
2
7
EN