PowerPoint Presentation

Energy1December 25, 2016ENERGY

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1. What is Energy?2December 25, 2016ENERGYThe capacity for vigorous activity; available powerAny source of usable power, as fossil fuel, electricity, or solar radiation.

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1. What are energy sources?3December 25, 2016ENERGY

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1.1. CoalDecember 25, 2016ENERGY4Coal is a flammable black, hard rock used as a solid fossil fuel.

1.2. OilDecember 25, 2016ENERGY5A naturally occurring, yellow-to-black liquid found in geological formations beneath the Earth's surface.

1.3. Nuclear Energy

December 25, 2016ENERGY6The use of nuclear reactions that release nuclear energy to generate heat, which most frequently is then used in steam turbines to produce electricity in a nuclear power plant.

Advantages ?December 25, 2016ENERGY7Source Advantages Disadvantages CoalInexpensiveEasy to recover (in U.S. and Russia)Requires expensive air pollution controls Significant contributor to acid rain and global warmingRequires extensive transportation systemOilGood distribution system for current use levelsEasy to obtain (sometimes)Better as space heating energy sourcelimited availabilityCould be major contributor to global warming

Advantages ?December 25, 2016ENERGY8NuclearFuel is inexpensiveEnergy generation Less PollutionEasy to transport as new fuelNo greenhouse or acid rain effectsRequires larger capital costHigh waste storage issue in most countries

SummaryDecember 25, 2016ENERGY9There are two main sources of energy:1. Fossil Fuel 2. Nuclear energy

Which do you think is better?