24
Results and Discussion
Calculation of Net Solar Energy on Earth
To calculate the net solar energy on the earth surface, the net irradiance of photon
emission has been calculated by integrating Eqs. (2.22) and (2.23). Necessarily, the
functional earth surface area J(ω), the photonic quantum field, and the unit area
J(ω) are being calculated considering the constant irradiance coupling point, and
Fig. 2.5 (a) Spherical triangle for application of the spherical law of cosines for the calculation of
solar zenith angle Θ for observer at latitude φ and longitude λ from knowledge of the hour angle h
and solar declination δ. (δ is the latitude of subsolar point, and h is the relative longitude of subsolar point.) (b) The theoretical daily-average irradiation at the top of the atmosphere, where θ is the
polar angle of the earth’s orbit, and θ = 0 at the vernal equinox, and θ = 90° at the summer solstice;
φ is the latitude of the earth. The calculation assumed conditions appropriate for 2000 A.D.: a solar
constant of S 0 = 1367 W/m
2 , obliquity of ε = 23.4398°, longitude of perihelion of ϖ = 282.895°,
and eccentricity of e = 0.016704. Contour labels (green) are in units of W/m
2 ; (c) shows the solar
irradiance at various frequencies and (d) shows the peak temperature which suggest the calculative
power to determine the net solar energy
2 Solar Energy
Results and Discussion
Calculation of Net Solar Energy on Earth
To calculate the net solar energy on the earth surface, the net irradiance of photon
emission has been calculated by integrating Eqs. (2.22) and (2.23). Necessarily, the
functional earth surface area J(ω), the photonic quantum field, and the unit area
J(ω) are being calculated considering the constant irradiance coupling point, and
Fig. 2.5 (a) Spherical triangle for application of the spherical law of cosines for the calculation of
solar zenith angle Θ for observer at latitude φ and longitude λ from knowledge of the hour angle h
and solar declination δ. (δ is the latitude of subsolar point, and h is the relative longitude of subsolar point.) (b) The theoretical daily-average irradiation at the top of the atmosphere, where θ is the
polar angle of the earth’s orbit, and θ = 0 at the vernal equinox, and θ = 90° at the summer solstice;
φ is the latitude of the earth. The calculation assumed conditions appropriate for 2000 A.D.: a solar
constant of S 0 = 1367 W/m
2 , obliquity of ε = 23.4398°, longitude of perihelion of ϖ = 282.895°,
and eccentricity of e = 0.016704. Contour labels (green) are in units of W/m
2 ; (c) shows the solar
irradiance at various frequencies and (d) shows the peak temperature which suggest the calculative
power to determine the net solar energy
2 Solar Energy