Environmental Science 5e

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Presentation transcript:

Environmental Science 5e Chapter 16 Energy: Some Basics Botkin and Keller Environmental Science 5e

Environmental Science 5e Energy Basics Energy: the ability to do work Potential Energy: energy that is stored Kinetic Energy: energy of motion - All energy is potential and kinetic Botkin and Keller Environmental Science 5e

Environmental Science 5e Botkin and Keller Environmental Science 5e

Environmental Science 5e Botkin and Keller Environmental Science 5e

Environmental Science 5e Energy Efficiency First Law Efficiency The amount of energy without any consideration of the quality of availability of the energy Second Law Efficiency How well matched the energy end use is with the quality of the energy source Botkin and Keller Environmental Science 5e

Environmental Science 5e Botkin and Keller Environmental Science 5e

Environmental Science 5e Botkin and Keller Environmental Science 5e

Energy Conservation, Increased Efficiency and Cogeneration Conservation: getting by with less demand for energy Energy Efficiency: designing equipment to yield more energy output from a given amount of input energy Cogeneration: a number of processes designed to capture and use waste heat rather than simply to release it into the atmosphere Botkin and Keller Environmental Science 5e

Environmental Science 5e Botkin and Keller Environmental Science 5e

Environmental Science 5e Energy Policy Hard Path vs. Soft Path Hard Path: finding greater amounts of fossil fuels and building larger power plants Soft Path: involves energy alternatives that emphasize energy quality and flexibility Energy for Tomorrow Integrated, Sustainable Energy Management Integrated Energy Management: no single energy source can provide all the energy required by the world Sustainable Energy Management: provides reliable sources of energy without causing serious harm, all while ensuring that future generation inherit a fair share of Earth’s resources Botkin and Keller Environmental Science 5e

Environmental Science 5e Botkin and Keller Environmental Science 5e

Environmental Science 5e Botkin and Keller Environmental Science 5e

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