renewable energy and conservation chapter 13. direct solar energy solar energy distribution over the...
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Direct Solar Energy
Solar-Generated Hydrogen
Solar energy
PV or wind generated electricity
Electrolysis of water
Solar generated hydrogen
Combustion of hydrogen
Usable energy
Compression of Hydrogen for storage and
transport
Indirect Solar Energy
Biomass Energy
Also possible to convert biomass to biogas or to liquids (methanol, ethanol).
Indirect Solar Energy
Advantages:– reduces dependence on fossil fuels– lower level of pollutants
• Disadvantages:– high land and water use– potential for deforestation / desertification
• Biomass Energy
Indirect Solar Energy
Impacts of Dam
• changes natural flow of rivers
• disrupts migratory fish patterns
• reservoir-induced seismicity
• potential dam breaks
Hydropower
Indirect Solar Energy
Ocean Thermal Energy Conversion
Warm water (ocean’s surface)
Liquid ammonia
Heats Ammonia Steam
Drives turbine
Generates electricity
“Spent” Steam
Cold water (ocean’s depth)
Cools
Other Renewable Energy Sources
Tidal Energy
Geothermal Energy- Geothermal Energy from Hot, Dry Rock
- Heating and Cooling Buildings with Geothermal Energy
Energy Solutions:Conservation and Efficiency
Provide examples that differentiate between energy conservation and energy efficiency
Energy Solutions:Conservation and Efficiency
Energy Consumption Trends and Economics
If economic growth continues in developing countries, these numbers will change.
Energy Solutions:Conservation and Efficiency
• Energy Efficient Technologies
Compact fluorescent light bulbs
Condensing furnaces
“Superinsulated” buildings
Energy Solutions:Conservation and Efficiency
Energy Efficient Technologies
National Appliance Energy Conservation Act applies energy efficiency standards to modern appliances
Energy Solutions:Conservation and Efficiency
Energy Efficient Technologies
Cogeneration Fuel Input
GeneratorElectricity
Industrial Processes
Heating Buildings
Heat Recovery
Hot Water Heating
Additional Electricity
Energy Solutions:Conservation and Efficiency
Energy Efficient Technologies
Energy Savings in Commercial Buildings