Lec16_Renewable_and_Alt_Energy

Lec16_Renewable_and_Alt_Energy - Lecture 16: Renewable and...

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Lecture 16: Renewable and Alternative Sources of Energy CHEM/ENVS 380 Apr 13, 2010 SOLAR Biomass, Hydroelectric, Wind, Solar (Thermal and Photovoltaic) GEOTHERMAL Energy from the molten core of the Earth TIDAL Gravity and motion among Earth, Moon, and Sun NUCLEAR Energy stored in the nuclei of atoms 1. What constitutes solar energy? 2. Where does fossil fuel fall in the above diagram? 3. What are the pros and cons of various forms of renewable energy? 4. Is there a silver bullet to the energy problem?
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Solar Energy Flow (in 10 20 kJ yr -1 , or 10 5 EJ yr -1 ) Spiro and Stigliani (2003) Chemistry of the Environment, Prentice Hall E (exa) = 10 18
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SOLAR energy reaching Earth (544 x 10 4 EJ yr -1 ) a 1/3 of the above is reflected Energy Availability (EJ = 10 18 J) GEOTHERMAL (~0.03 % of solar) TIDAL (~0.003 % of solar) Human-generated NUCLEAR (miniscule) FOSSIL FUEL STOCKS (~ 1 % of solar) Human Energy Consumption (380 EJ yr -1 , or 0.01 % of solar energy absorbed) The Sun delivers energy equivalent to the annual human energy consumption every 55 minutes .
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, Vol 309, Issue 5734, 548-551 , 22 July 2005 Global energy consumption is currently at 12 TW (380 EJ yr -1 ). This is expected to triple by 2050. NB: 1W = 1 J/s
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This note was uploaded on 09/23/2011 for the course CHEM 380 taught by Professor Staff during the Spring '11 term at S.F. State.

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Lec16_Renewable_and_Alt_Energy - Lecture 16: Renewable and...

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