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Principles of Sustainable Energy Systems, Second Edition, 2nd Edition
book

Principles of Sustainable Energy Systems, Second Edition, 2nd Edition

by Frank Kreith, Susan Krumdieck
August 2013
Intermediate to advanced content levelIntermediate to advanced
790 pages
30h 5m
English
CRC Press
Content preview from Principles of Sustainable Energy Systems, Second Edition, 2nd Edition
497Solar Process Heat and Thermal Power
© 2008 Taylor & Francis Group, LLC
temperature T, 300 K for the ambient (T
a
), and 0.88 for ε (typical for rough oxidized steel),
and an empirical relation of c = 5 W/m
2
K
125
, the thermal loss, T
L
, from the receiver is
TA TT cT T
T
L receivera
t
a
L
=−
(
)
+−
=⋅×
εσ
4125
1 056 088567 10
()
,..
.
−−
−+
=+
[]
=
84
41
25
800 300 5 800 300
1 056 20 000 11 600
.( )( )
,, ,
.
T
L
331 6. MW
(8.53)
The resulting thermal efciency is
η
η
th
th
=− =−
+
=−
+
=
11
1
31 6
468 31 6
093
TL
incident power
TL
DPTO
PT
L
.
.
.77937= .%
(8.54)
The required collector (heliostat) area at the design point is given by
Absorbed solar power DPTOP + TL CSB ==GpAT
c
()ηα
(8.55)
Hen ...
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Publisher Resources

ISBN: 9781466556966