Question

5. a. A vertical wall faces south and is located at latitude 40 deg. At solar noon on January 1, insolation on a horizontal surface is 320 W/m. a Determine the intensity of beam radiation on the wall. Assume the insolation on the horizontal is 75% beam. A two-dimensional sketch may help with the trigonometry. (answer -471 Wim)

Answer 1

(7 a re) ue. kno o that A lattude anale 320 0 co5Cu0-8) ve no thot B. 23.45 x cos(WTTx(TD-172) /365 St anuaoiy , Julian Pa^ SD) -

hare Cos18 32 0 6.1510 337 e331 -W50-5 . 丁ㆁ cos 18こし150-5 10 (0.951): 1150.5 T -1.150-5 04510