April 28, 2004
Errata Sheet
Principles of Solar Engineering
, edition 2
Goswami, Kreith, and Kreider, Taylor & Francis, 2000.
Title Page
Should be “Solar Energy and Energy Conversion Laboratory”
Chapter 2
Pg. 13
4.3 x10
9
g/sec = 4.3 x 10
3
ton (metric) / sec = 4.73 x 10
3
ton (English) / sec
Pg. 14
(Eq. 2.1)
lm
should be
ln
Pg. 15
(Eq. 2.2)
p
m
should be
ln
Cutoff in bottom  kc , mc and f for kilocycle, megacycle and fresnel respectively
Pg. 24
(Eq. 2.23)
...si
n ..
. 365
o
should be
[ ]
...sin .
.
°
“
azimuth angle,
s
a
” should be “
azimuth angle,
s
a
”
(Eq. 2.25)
( 29
15
. hours .
.. noon
s
h
=
o
should be
( 29
15 deg/hr
.. noon
s
h
=
Pg. 25
Table 2.2, JAN decl. and ET values are all negative, and for the 29
th
, ET is 13 min 5 sec
Table 2.2, FEB decl. and ET values are all negative
Table 2.2, MAR 121 decl. values are negative, all ET values are negative
Table 2.2, APR 113 ET values are negative
Table 2.2, MAY 5 ET is 3 min 17 sec
Table 2.2, JUN 1729 ET values are negative
Table 2.2, JUL and AUG all ET values are negative
Table 2.2, SEP 25 and 29 decl. are negative.
Table 2.2, OCT all ET values are negative
Table 2.2, NOV and DEC decl. values are all negative
Pg. 28
Last line should be
[ ]
( 29
1
..
.
co
s
ta
n
/ ta
n
/...
sL
d

°
m
Pg. 29
1
st
para replace last sentence “Therefore, .
..” with “which may be calculated as
( 29
180
ss
aa
=
±
°
”
Pg. 33
Ex 2.2(a) is worked out for April. Replace all “May 1” with “April 1”
Pg. 35
Ex 2.2(b) last line “.
..L >
1.07” should be “.
..L <
1.07”
Ex 2.3 “10 a.m.” should be “10
AM
”
Pg. 52
2
nd
line replace “levels” with “per day”
Table for Ex 2.7 shift
,
a
oh
H
column heading slightly to right so it is only over the
(kJ/m
2
day) column, thus not over the PS values
Pg. 56
(Eq. 2.52) 2
T
K
should be
2
T
K
Pg. 58
Near top, “Using Eqs. (2.61) and (2.62).
..” should be “Using Eqs. (2.58) and (2.59).
..”
Ex. 2.8 “From Table A2.2a:” should be “From Table A2.2:”
Ex. 2.8
..
.
16)365.
..
s
d
=+
should be
..
.
16)/365.
..
s
d
Pg. 59
Ex. 2.8 first line term
h
H
should be
h
H
and it works out to 0.26, not 0.212
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View Full DocumentApril 28, 2004
Ex. 2.8 Subsequently,
h
D
= 0.26 x 16,215 = 4,216 kJ/m
2
day,
h
B
= 11,999 kJ/m
2
day, and
c
H
= (1.47)(11,999) + 0.953(4,216) + .
.. = 21,802 kJ/m
2
HW 2.2
“Find the minimum distance.
..” should be “Find the minimum normalized distance.
..”
Specify it is solar time
HW 2.10
Specify it is solar time and S orientation
HW 2.11B
Requires an expression given in the 1
st
edition as Eq. (2.16),
( 29 ( 29
{ }
12
2
co
s 1
si
n
co
s
co
s
co
s
sin
s
ss
i
LhL
b
d
bd
=


+
This may be derived for the HW problem, but with difficulty.
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 Fall '08
 Staff
 Trigraph, Pg.

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