Fluctuation in the Solar Constant The solar constant S is the amount of per unit area that reaches Earth's atmosphere from the sun. It is equal to 1361 wats per m2 but varies slightly throughout the seasons. This fluctuation AS in S can be calculated using the formula energy 27(82.5- N) AS = 0.034S sin 365.25 In this formula, N is the day number covering a four-year period, where N= 1l cor responds to January 1 of a leap year and N= 1461 corresponds to December 31 of the fourth year. (Source: Winter, C., R. Sizmann, and L. L.Vant-Hull, Editors, Solar Power Plants, Springer-Verlag.) (a) Calculate AS for N = 80, which is the spring equinox in the first year. %3D %3D %3D (b) Calculate AS for N = 1268, which is the summer solstice in the fourth year. (c) What is the maximum value of AS? (d) Find a value for N where AS is equal to 0.
Fluctuation in the Solar Constant The solar constant S is the amount of per unit area that reaches Earth's atmosphere from the sun. It is equal to 1361 wats per m2 but varies slightly throughout the seasons. This fluctuation AS in S can be calculated using the formula energy 27(82.5- N) AS = 0.034S sin 365.25 In this formula, N is the day number covering a four-year period, where N= 1l cor responds to January 1 of a leap year and N= 1461 corresponds to December 31 of the fourth year. (Source: Winter, C., R. Sizmann, and L. L.Vant-Hull, Editors, Solar Power Plants, Springer-Verlag.) (a) Calculate AS for N = 80, which is the spring equinox in the first year. %3D %3D %3D (b) Calculate AS for N = 1268, which is the summer solstice in the fourth year. (c) What is the maximum value of AS? (d) Find a value for N where AS is equal to 0.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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