BIOL-103 Lecture 10: Perpetual and Renewable Energy
3 Oct 2018
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Document Summary
Solar energy: a perpetual energy source, as long as the sun exists, this source will always exist. Latitude: where you are, north or south of the equator will depend on how much energy you get. Atmospheric absorption and scattering: we can generate heat from our solar systems or use it to generate electricity. Heat in 2 ways: passively: capture sunlight and change to low temperature heat energy, windows facing south. Active solar heat: plate/panel collectors, pumping pipes, solar energy > collected > transferred to water/antifreeze/air = pumping through ducts to heat the house. New technology not seen as much: photovoltaic cells is more common, creating large solar farms. Apple, new million solar farm in monterey, ca. Passive/active solar heating: pros: energy is free, net energy is moderate (active to high passive), quick installation, no co2 emissions, very low water and air pollution, very low land disturbance (built into roof or window), moderate cost (passive).
