MIL-HDBK-1003/19
APPENDIX D
WORKSHEET 9
Annual Delivered Solar Energy
FIRST SYSTEM
Transmitted solar radiation:
(QTAn)o =
232,584
Btu/ft2-yr
Coefficients for azimuth/tilt correction:
C1 =
0.046
C2 =
-0.2934
C3 =
-0.3243
C4 =
1.6957
C5 =
-1.1985
Corrected transmitted solar radiation:
(QTAn)1 =
231,210
Btu/ft2-yr
(Use equation 5.20)
SECOND SYSTEM
Transmitted solar radiation:
(QTAn)o = __________ Btu/ft2-yr
Coefficients for azimuth/tilt correction:
C1 = _________
C2 = _________
C3 = _________
C4 = _________
C5 = _________
Corrected transmitted solar radiation:
(QTAn)2 = __________ Btu/ft2-yr
(Use equation 5.20)
ANNUAL DELIVERED SOLAR ENERGY
(QD)a = [alpha] [multiplied by] Ac [multiplied by] ed [multiplied by]
[f1 (QTAn)1 + f2(QTAn)2] = 177.4 x 106 Btu/yr
183
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