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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
457Solar Process Heat and Thermal Power
© 2008 Taylor & Francis Group, LLC
Once σ
total
has been estimated, various CRs (and thus receiver diameters) can be evalu-
ated for their resulting impact on the intercept factor. A reasonable value for the intercept
factor from an engineering perspective is 95%, that is, 5% spill over losses.
The absorber/receiver for the parabolic trough system is usually a metal tube surrounded
by a glass tube. The heat loss coefcient for this type of receiver/absorber is
U
TTA
L
absorber ambabsorber
=
Rate of heat loss
()
(8.19)
Figure 8.18 shows experimentally measured absorber heat loss coefcients as a function of
absorber ...
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Publisher Resources

ISBN: 9781466556966