Environmental Engineering Reference
In-Depth Information
2.
Effect of shade on solar radiation on absorber plate
The amount of solar radiation on the absorber plate is less than the amount falling on a
tilted surface having the same angle as the absorber plate but situated in the open. This is due
to the shading cast on the absorber plate by several collector components:
•
Shade by the neighboring absorber plates (shade length =
s
1
)
•
Shade by the neighboring glass tubes (shade length =
s
2
)
•
Shade by the header box of the collector (shade length =
s
3
)
Figure 23. Shadow effect due to adjacent plate and adjacent glass tube.
Figure 24. Shadow effect due collector header box.
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