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Published byStephen Skinner Modified over 9 years ago
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Renewable and Non- Renewable Energy
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Laws of Thermodynamics First Law: In any transformation of energy from one form to another, the total quantity of energy remains unchanged. “ Energy is neither created nor destroyed, it only changes forms. ” Second Law: In all energy changes, the desired output energy will be less than that of the input energy – (useful energy is always lost.) “ Lost ” energy is usually energy that has been converted to heat, but it could be noise (kinetic energy of air), or other forms of wasted energy.
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Efficiency The efficiency of the conversion of a fuel into electricity is always less than 100%. This is true of all energy conversions including those not related to electricity.
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Renewable vs Non-Renewable Solar Wind Biomass Hydro Ocean Geothermal Coal Oil Gas Nuclear
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Energy Uses
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Household Electricity
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Regional Energy Use
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Energy Sources
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Energy Source Trends
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Peak Oil
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Every Year an Average Coal Plant Releases 3,700,000 tons of CO 2 10,000 tons of SO 2. 500 tons of particulates 10,200 tons NOx 720 tons of CO 220 tons of volatile organic compounds (VOC) 170 pounds of mercury 225 pounds of arsenic 114 pounds of lead And there are over 600 of them in the US. Source: Union of Concerned Scientists: www.ucsusa.org
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Types of Pollutants CO 2 – Global Warming CO – Health problem PM – Respiratory and heart disease, haze SOx – Acid Rain, respiratory illness, haze NOx – Ozone formation, acid rain, smog, nutrient loading, global warming Mercury – Neurotoxin Lead – Neurotoxin Arsenic - Poison VOCs – Numerous health problems Ozone – Health problems, damage to flora & fauna Hundreds of other toxic chemicals
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