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Efficiency, Cogeneration and Energy Conservation

Learn how to optimize energy efficiency through cogeneration and conservation practices. Explore the First Law of Thermodynamics, calculation methods for efficiency, hybrid cars, and the benefits of cogeneration. Discover the simple yet effective energy conservation strategies that can lead to significant cost savings.

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Efficiency, Cogeneration and Energy Conservation

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  1. Efficiency, Cogeneration and Energy Conservation 5/08

  2. The First Law of thermodynamics • The energy going in must equal the energy leaving • When energy is transferred heat is wasted energy

  3. Energy Efficiency is the percentage of energy that does useful work

  4. Calculation • % efficiency = useful energy out / useful energy in multiplied by 100 • More than 40% of all commercial energy in the US is wasted

  5. Hybrid cars • Small efficient gasoline engine • Electric motor when needed • Convert braking energy to electricity • Turn off when idling • Lightweight and aerodynamic

  6. Cogeneration • Production of two useful forms of energy from one source

  7. Energy Conservation • Mostly common sense, that for a little effort will save lots of money

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