Energy Production

1
Energy Production

• Alternative Technologies

2
Sources of Energy
Brady/Holum, Fundamentals of Chemistry, Wiley,
NY, 1988, 147.
3
Solar Collectors (curved mirrors that heat oil)
Botkin/Keller, Environmental Science, Wiley, NY,
1995, 330
4
Direct Sunlight
Sun Tracking mirrors focus sunlight on molten
salt receiver in tower
Nebel/Wright, Environmental Science,7th,Prentice
Hall, NJ, 2000, 366
5
Average Daily Solar Radiation in US
cal/sq.cm
Cunningham/Saigo, Environmental Science, McGraw
Hill, MA, 2001, 503
6
Photovoltaic (PV) Cell
Electron Donor and Acceptor Doped Si-Crystals
Acceptor Crystal
Donor Crystal
Hill/Kolb, Chemistry for Changing Times, 8th,
Prentice Hall, NJ, 1998, 375
7
Photovoltaic (PV) Cell
Solar energy is converted directly to electrical
energy when light causes electrons to flow from
the donor crystal to the acceptor crystal through
the external circuit
Hill/Kolb, Chemistry for Changing Times, 8th,
Prentice Hall, NJ, 1998, 375
8
220 34 ft PV Panels Supply 6.5 MW for 2400 Homes
Nebel/Wright, Environmental Science,7th,Prentice
Hall, NJ, 2000, 366
9
Photo-synthesis
American Scientist, Vol 83, 1995, 535
10
Natural Storing of Solar Energy
Sunlight
Biomass
Stoker et al, Energy, Scott Foresman,IL, 1975,
285
11
Biomass - managed use of trees and other plants
for fuel
Hill/Kolb, Chemistry for Changing Times, 8th,
Prentice Hall, NJ, 1998, 376
12
Storing Electrical Energy Using Hydrogen
Stoker et al, Energy, Scott Foresman,IL, 1975,
285
13
Electrolytic Production of Hydrogen from Water
Raven et al, Environment, Saunders, NY, 1995, 242
14
Storing Solar Energy Using Hydrogen
Solar Energy
Catalyst
Stoker et al, Energy, Scott Foresman,IL, 1975,
285
15
Joesten et al, World of Chemistry, Saunders, NY,
1991, 235
16
Production of Hydrogen by Photolysis of Water
American Scientist, Vol 83, 1995, 535
17
Energy Sources - Current and Proposed
Current world energy sources
Cunningham/Saigo, Environmental Science, 6th,
McGraw Hill,MA, 2001, 477, 499