Chapter 2

Energy from the Sun

KEY CONCEPTS

  • The sun–earth geometric relationship and characteristics of the sun
  • Earth–sun angles and their relationships
  • The sunrise, sunset and day length equations
  • Solar energy reaching the earth’s surface and problems associated with harnessing full solar energy
  • Extraterrestrial irradiation
  • Multi-Purpose utilization of solar energy
  • Solar thermoelectric conversion and applications
  • Solar thermal energy applications
  • Solar thermal energy storage

The sun’s energy is the primary source of energy for all the surface phenomena and life on earth. Combined with the materials of the earth (including the molecules held close by the earth’s gravitational force called the atmosphere), this energy is utilized for the survival ...

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