1. (25 pts.) Calculate the day length, sunrise and sunset times and altitude and azimuth angles for Nicosia (35 N, 33 E) on April 1 at 11:30 am solar times. 2. (20 pts.) Calculate the solar declination for the spring and fall equinoxes and the summer and winter solstices. 3. (20 pts.) A surface tilted at 58 in stanbul (41N) faces 25 west of due south. Calculate the solar incidence angle on the collector at 16:30 am solar time on August 9. 3/5 4. (25 pts.) Dimensions of a PV module have been given as 159 cm and 101 cm for its length and width respectively. Using many of these modules PV system is going to be constructed on a flat roof in Nicosia (35 N). The modules will be tilted at 15 and facing due south. The rack configuration of the system allows that one module to be mounted horizontally as shown in the following figure. What should be the minimum distance (b and d) between each row in order to avoid shading at noon in winter solstice? 5. (10pts. By using the solar polar chart of Rotterdam, find the solar altitude and azimuth angles on February 20 at 4:00 pm. Show your markings on the figure. (o) Univ. of Oregon RMI SOUTH Wor Warto Holar) time sone: 1 Rotterdam Dec 31 Apr 30 May 21 1. (25 pts.) Calculate the day length, sunrise and sunset times and altitude and azimuth angles for Nicosia (35 N, 33 E) on April 1 at 11:30 am solar times. 2. (20 pts.) Calculate the solar declination for the spring and fall equinoxes and the summer and winter solstices. 3. (20 pts.) A surface tilted at 58 in stanbul (41N) faces 25 west of due south. Calculate the solar incidence angle on the collector at 16:30 am solar time on August 9. 3/5 4. (25 pts.) Dimensions of a PV module have been given as 159 cm and 101 cm for its length and width respectively. Using many of these modules PV system is going to be constructed on a flat roof in Nicosia (35 N). The modules will be tilted at 15 and facing due south. The rack configuration of the system allows that one module to be mounted horizontally as shown in the following figure. What should be the minimum distance (b and d) between each row in order to avoid shading at noon in winter solstice? 5. (10pts. By using the solar polar chart of Rotterdam, find the solar altitude and azimuth angles on February 20 at 4:00 pm. Show your markings on the figure. (o) Univ. of Oregon RMI SOUTH Wor Warto Holar) time sone: 1 Rotterdam Dec 31 Apr 30 May 21