
467Solar Process Heat and Thermal Power
© 2008 Taylor & Francis Group, LLC
TABLE 8.8
Parameters r
T
and r
d
Used to Calculate Monthly Solar Flux Incident on Various Collector Types
a
Collector Type r
T
b–d
r
d
e
Fixed aperture
concentrators that do
not view the
foreground
cos( )
(cos )
cos( )[ cosh ()]
L
dL
ah hi ab i
coll sr sr
−
−=+− =
β
90 90 ssin
sincos
h
b
hhh
coll
coll coll coll
+
+
2
sin
{[cos()/c os )[/ )]}
h
d
LLCR
h
d
coll coll
+−+
β 1
{[cos ()/)][cos( )/cos( )]}hCRL i
sr st
=−
0h
East–west axis tracking
f
1
22
d
ab x
L
x
s
h
cell
(cos )
cos
costan
+
+
∫
δ
0
22
d
ab x
L
x
CR
xh
r
(cos )
cos
costan
()
[cos cos( )
+
+−
∫