Homework For the average day of August in Baghdad(from table 1.6.1 you can find the day number for the average day of the month), calculate: Solar time when standard time is 15:00 o'clock in the afternoon. a) b) Location of the sun (solar altitude angle and solar azimuth angle) at this time. c) Angle of incidence on a solar module installed at a slope of 30 degrees, toward south. d) Calculate the monthly average clearness index for Baghdad from references introduced in previous lessons or you may find it yourself (in this case specify the reference used). e) Calculate the monthly average daily horizontal irradiation in Baghdad on August. f) Calculate the monthly average daily horizontal diffuse irradiation in Baghdad on August. Calculate the monthly average daily horizontal beam irradiation in Baghdad on August. g) h) Calculate the monthly average daily irradiation on the solar module mentioned in part c.

Applications and Investigations in Earth Science (9th Edition)
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ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
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Chapter1: The Study Of Minerals
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Homework
For the average day of August in Baghdad(from table 1.6.1 you can find the day number for
the average day of the month), calculate:
a)
Solar time when standard time is 15:00 o'clock in the afternoon.
b)
Location of the sun (solar altitude angle and solar azimuth angle) at this time.
c)
Angle of incidence on a solar module installed at a slope of 30 degrees, toward south.
d)
Calculate the monthly average clearness index for Baghdad from references introduced in
previous lessons or you may find it yourself (in this case specify the reference used).
e)
Calculate the monthly average daily horizontal irradiation in Baghdad on August.
f)
Calculate the monthly average daily horizontal diffuse irradiation in Baghdad on August.
g)
Calculate the monthly average daily horizontal beam irradiation in Baghdad on August.
Calculate the monthly average daily irradiation on the solar module mentioned in part c.
h)
CamScanner - igo is gunal
"sc
-
Effect of earth-sun distance on solar constant
360
B = (n – 1)
365
Table 1.6.1 Recommended Average Days for Months and Values of n by Monthsa
For Average Day of Month
n for ith
Day of Month
Month
Date
January
February
March
April
Мay
June
i
17
17
-20.9
31 + i
59 + i
-13.0
-2.4
16
47
16
75
90 +i
120 +i
151 +i
15
105
9.4
15
135
18.8
11
162
23.1
July
August
September
October
181 +i
17
198
21.2
212 +i
243 +i
16
228
13.5
15
258
2.2
273+i
304 + i
334 + i
15
288
-9.6
November
14
318
-18.9
December
10
344
-23.0
"From Klein (1977). Do not use for lø| > 66.5°.
CamScanner - Wgb igall
Transcribed Image Text:Homework For the average day of August in Baghdad(from table 1.6.1 you can find the day number for the average day of the month), calculate: a) Solar time when standard time is 15:00 o'clock in the afternoon. b) Location of the sun (solar altitude angle and solar azimuth angle) at this time. c) Angle of incidence on a solar module installed at a slope of 30 degrees, toward south. d) Calculate the monthly average clearness index for Baghdad from references introduced in previous lessons or you may find it yourself (in this case specify the reference used). e) Calculate the monthly average daily horizontal irradiation in Baghdad on August. f) Calculate the monthly average daily horizontal diffuse irradiation in Baghdad on August. g) Calculate the monthly average daily horizontal beam irradiation in Baghdad on August. Calculate the monthly average daily irradiation on the solar module mentioned in part c. h) CamScanner - igo is gunal "sc - Effect of earth-sun distance on solar constant 360 B = (n – 1) 365 Table 1.6.1 Recommended Average Days for Months and Values of n by Monthsa For Average Day of Month n for ith Day of Month Month Date January February March April Мay June i 17 17 -20.9 31 + i 59 + i -13.0 -2.4 16 47 16 75 90 +i 120 +i 151 +i 15 105 9.4 15 135 18.8 11 162 23.1 July August September October 181 +i 17 198 21.2 212 +i 243 +i 16 228 13.5 15 258 2.2 273+i 304 + i 334 + i 15 288 -9.6 November 14 318 -18.9 December 10 344 -23.0 "From Klein (1977). Do not use for lø| > 66.5°. CamScanner - Wgb igall
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